Popular terms

Duty Cycle topics
Duty Cycle
Computer Program
Distributed
Buffer Circuit
Integrated Circuit
Differential Amplifier
Duty Cycle Correction
Ultrasonic
Reference Voltage
Thermostat
Modulation
Wireless Power
Calculator
Control Unit
Bridge Inverter

Follow us on Twitter
twitter icon@FreshPatents

Web & Computing
Cloud Computing
Ecommerce
Search patents
Smartphone patents
Social Media patents
Video patents
Website patents
Web Server
Android patents
Copyright patents
Database patents
Programming patents
Wearable Computing
Webcam patents

Web Companies
Apple patents
Google patents
Adobe patents
Ebay patents
Oracle patents
Yahoo patents

[SEARCH]

Duty Cycle patents



      
           
This page is updated frequently with new Duty Cycle-related patent applications.



Date/App# patent app List of recent Duty Cycle-related patents
02/04/16
20160037600 
 Backlight unit and display device patent thumbnailnew patent Backlight unit and display device
The invention provides a backlight unit used in a display device. The backlight unit includes a light source which is driven by a pulse wave having a predetermined duty cycle.
Innolux Corporation


02/04/16
20160036330 
 Apparatus and methods for integrated power converter with high bandwidth patent thumbnailnew patent Apparatus and methods for integrated power converter with high bandwidth
A dc-dc power converter includes a switched inductor power converter and a parallel linear voltage regulator. Two transistors are positioned in the switched inductor power converter to periodically set a bridge voltage thereby producing a square wave with a fixed frequency and variable duty cycle.
Ferric Inc.


02/04/16
20160035155 
 Duty cycle recording  estimation of damage and remaining life of drivetrain components patent thumbnailnew patent Duty cycle recording estimation of damage and remaining life of drivetrain components
A duty cycle recording system and method is disclosed for a vehicle with a drivetrain having a plurality of components and sensors. The duty cycle recording system may include a control unit and communication link.
Deere & Company


01/28/16
20160029453 
 Control unit for a led assembly and lighting system patent thumbnailControl unit for a led assembly and lighting system
A control unit for an led assembly comprising a first and second led unit, said led units being serial connected is described. The led assembly, in use, is powered by a switched mode power supply.
Eldolab Holding B.v.


01/28/16
20160029132 
 Sliding bias and peak limiting for optical hearing devices patent thumbnailSliding bias and peak limiting for optical hearing devices
A processor comprises instructions to adjust a bias of an input signal in order to decrease a duty cycle of a pulse modulated optical signal. The bias can be increased, decreased, or maintained in response to one or more measured values of the signal.
Earlens Corporation


01/28/16
20160027616 
 System and  selective coil excitation in inductively coupled plasma processing reactors patent thumbnailSystem and selective coil excitation in inductively coupled plasma processing reactors
Spatial distribution of rf power delivered to plasma in a processing chamber is controlled using an arrangement of primary and secondary inductors, wherein the current through the secondary inductors affects the spatial distribution of the plasma. The secondary inductors are configured to resonate at respectively different frequencies.
Applied Materials, Inc.


01/28/16
20160026059 
 Method for control of electrochromic device patent thumbnailMethod for control of electrochromic device
A method for control of electrochromic devices is revealed. First a duty cycle of pwm is changed to a preset q value according to a signal detected by a detector while the electrochromic device is switched to the colored state.
Tintable Smart Material Co., Ltd.


01/28/16
20160022997 
 Active implantable medical device for nerve stimulation therapy with dynamic adjustment of stimulation periods patent thumbnailActive implantable medical device for nerve stimulation therapy with dynamic adjustment of stimulation periods
An active implantable medical device for neurostimulation therapy is disclosed. The device produces stimulation pulse sequences generated continuously in succession during activity periods separated by intermediate inactivity periods during which no stimulation is issued.
Inserm - Institut National De La Sante Et De La Recherche Medicale


01/21/16
20160018126 
 Controller for automatic control of duty cycled hvac&r equipment, and systems and methods using same patent thumbnailController for automatic control of duty cycled hvac&r equipment, and systems and methods using same
An electronic controller device for automatic control of a heating, ventilating, air conditioning or refrigeration (hvac&r) system, which has at least a delayed start controller that is capable of delaying sending of a signal to power on a load unit and achieve a selected conditioned space temperature variation, and a demand regulator controller that is capable of calculating on times and off times to obtain a selected electrical demand. The electronic controller device can include a computer-readable storage medium that comprises programs to implement the delayed start and demand regulator controllers, and optionally other controller modules, can delay oem on signals and/or adjust the “on” and “off” states, and/or provide other load unit control, to manage and reduce energy consumption and/or demand..
Pacecontrols, Llc


01/14/16
20160013801 
 Reference-frequency-insensitive phase locked loop patent thumbnailReference-frequency-insensitive phase locked loop
A phase locked loop may be operable to generate, utilizing a frequency doubler, a reference clock signal whose frequency is twice a frequency of a crystal clock signal and is keyed on both rising and falling edges of the crystal clock signal. A sampled loop filter (slpf) in the phase locked loop may capture charge from a charge pump (chp) in the phase locked loop and the charge is captured at a frequency corresponding to the frequency of the reference clock signal.
Maxlinear, Inc.


01/14/16
20160013785 

Duty cycle correction circuit and semiconductor device


According to one embodiment, there is provided a duty cycle correction circuit including an input inverter, an output inverter, a charge distribution unit, and a drawing-off unit. The input inverter includes a pmos transistor and an nmos transistor and receives a clock signal.
Kabushiki Kaisha Toshiba


01/14/16
20160013778 

Circuits, devices and methods for achieving small duty cycles in switching regulators


Circuits, devices and methods for achieving small duty cycles in switching regulators. In some embodiments, a method for generating a low duty cycle output voltage can include setting a ramp signal to a first level substantially with a first edge of a clock signal, and ramping the ramp signal from the first level towards a second level such that voltage level of the ramp signal crosses a compensation level, with the ramping beginning at a time before a second edge of the clock signal.
Skyworks Solutions, Inc.


01/14/16
20160013725 

High efficiency power converter


A power converter nearly losslessly delivers energy and recovers energy from capacitors associated with controlled rectifiers in a secondary winding circuit, each controlled rectifier having a parallel uncontrolled rectifier. First and second primary switches in series with first and second primary windings, respectively, are turned on for a fixed duty cycle, each for approximately one half of the switching cycle.
Synqor, Inc.


01/14/16
20160011636 

System and use for energy efficient applications driven by multiple context clocks for personal energy footprint management


A power state management system of an electronic system is coupled to a plug load device and a method for operation of the same. The system includes a context clock to adjust a duty cycle of the electronic system for controlling the power states of the electronic system for more efficient use of electricity.
The Regents Of The University Of California


01/14/16
20160009556 

Systems and methods for growing a non-phase separated group-iii nitride semiconductor alloy


Systems and methods for mbe growing of group-iii nitride alloys, comprising establishing an average reaction temperature range from about 250 c to about 850 c; introducing a nitrogen flux at a nitrogen flow rate; introducing a first metal flux at a first metal flow rate; and periodically stopping and restarting the first metal flux according to a first flow duty cycle. According to another embodiment, the system comprises a nitrogen source that provides nitrogen at a nitrogen flow rate, and, a first metal source comprising a first metal effusion cell that provides a first metal at a first metal flow rate, and a first metal shutter that periodically opens and closes according to a first flow duty cycle to abate and recommence the flow of the first metal from the first metal source.
Georgia Tech Research Corporation


01/14/16
20160008961 

Power tool


The purpose of the present invention is to use a motor with as high an output as possible to complete tightening operations at a high speed while limiting continuous drive output. In a power tool having a plurality of impact operation modes, the motor thereof is controlled at a 100% duty cycle so as to rotate at a high speed in the period between pulling of a trigger and starting of an impact operation (71a-71b), and the duty cycle is changed to a low duty cycle matching the appropriate operation mode after an impact by an impact mechanism is started and a predetermined stroke is performed so that the motor is driven at the low duty cycle until the trigger is returned (arrow 71c-71d).
Hitachi Koki Co., Ltd.


01/14/16
20160008222 

Implantable electroacupuncture device and treating obesity


An exemplary method for treating obesity in a patient comprising the steps of 1) implanting a coin-sized electroacupuncture (ea) device in the patient below the patient's skin at at least one specified stimulation site, 2) enabling the ea device to generate stimulation sessions at a duty cycle that is less than 0.05, each stimulation session comprising a series of stimulation pulses, wherein the duty cycle is the ratio of t3/t4, where t3 is the duration in minutes of each stimulation session, and t4 is the time in minutes between stimulation sessions, and 3) delivering the stimulation pulses of each stimulation session to the at least one specified stimulation site through at least two electrodes/arrays attached to an outside surface of the ea device.. .
Valencia Technologies Corporation


01/14/16
20160008221 

Implantable electroacupuncture treating dyslipidemia and obesity


An exemplary method of treating obesity or dyslipidemia of a patient includes 1) generating, by an electroacupuncture device implanted beneath a skin surface of the patient at an acupoint corresponding to at least one of a saphenous nerve and a peroneal nerve of the patient, stimulation sessions at a duty cycle that is less than 0.05, and 2) applying, by the electroacupuncture device in accordance with the duty cycle, the stimulation sessions to at least one of the saphenous nerve and the peroneal nerve by way of a central electrode and an annular electrode located on a housing of the electroacupuncture device.. .
Valencia Technologies Corporation


01/07/16
20160007416 

Light-emitting diode lighting device having multiple driving stages and line/load regulation control


An led lighting device includes multiple luminescent devices driven by a rectified ac voltage. The multiple luminescent devices are turned on flexibly in a multi-stage driving scheme using multiple current controllers.
Iml International


01/07/16
20160006421 

Frequency synthesiser circuit


The invention relates to frequency synthesiser circuits, and in particular to frequency synthesiser circuits characterised by a small channel spacing. Embodiments disclosed include a frequency synthesiser circuit (100) for a radio receiver, the circuit comprising: a digitally controlled oscillator (118) configured to generate an output signal (128) with an output frequency on application of an oscillator enable signal (126); a delay module (160; 210) configured to delay an input reference signal (142) to generate a delayed reference signal (144; 244); and a duty cycle module (150) configured to modulate the oscillator enable signal based on a period of an input reference signal (142) and the delay of the delayed reference signal (144), such that a ratio between the output frequency and the frequency of the input reference signal (142) is a non-integer..
Nxp B.v.


01/07/16
20160006347 

Power supply apparatus, control apparatus, and program therefor


A power supply apparatus includes: an inductor to which an input voltage is applied; a switching element that switches a current flowing to the inductor on and off so as to cause an induced voltage to be generated; an electrolytic capacitor that smoothes the induced voltage and outputs the voltage to a load; and a control circuit that controls the switching element, wherein the control circuit outputs a second switching control signal obtained by superimposing a degradation detection-purpose signal for detecting degradation of the electrolytic capacitor on a first control signal, detects an output voltage output by switching performed by the switching element controlled by the second control signal, and estimates the degradation of the electrolytic capacitor by using the output voltage detected, a duty cycle of the first control signal, and a frequency component of the degradation detection-purpose signal contained in the output voltage detected.. .
Fujitsu Limited


01/07/16
20160005556 

High power current switch


A high power switching circuit suitable for injection of high currents, typically several tens of amperes, at high drive voltages of up to 5-10 kv, is provided using a combination of electromechanical and semiconductor switching elements that, while providing switchable polarity, substantially bypasses semiconductor switching element(s) during a substantial portion of current injection duty cycles. In this way, thermal heating of switching elements can be reduced/managed in a way that improves long term reliability of geophysical survey equipment.
Advanced Geosciences, Inc.


01/07/16
20160005174 

System and synchronizing fiducial markers


A system of active fiducial markers for pose calculation of head mounted displays is described in which information is exchanged among said markers for the purpose of synchronization. Fiducial patterns are made more easily identifiable by selective duty cycles of sub groups of synchronized emitters and means is described to propagate pose information among markers..
Technical Illusions, Inc.


01/07/16
20160003189 

System, apparatus, and thrust vectoring


In various embodiments, the thrust vectoring systems described herein create variable reverse thrust during a landing event. The reverse thrust may be varied based on manual inputs, dynamically changing operating events, or a landing duty cycle.
Rohr, Inc.


01/07/16
20160001398 

Laser processing sapphire


Laser processing of sapphire is performed using a continuous wave laser operating in a quasi-continuous wave (qcw) mode to emit consecutive laser light pulses in a wavelength range of about 1060 nm to 1070 nm (hereinafter “qcw laser”). Laser processing of sapphire using a qcw laser may be performed with a lower duty cycle (e.g., between about 1% and 10%) and in an inert gas atmosphere such as argon or helium.
Ipg Photonics Corporation


12/31/15
20150382439 

Resistive bypass for series lighting circuit


A resistor bypass circuit for a series lighting circuit includes a plurality of serially connected light sources and a bypass resistor being connected in parallel with at least one of the respective light sources, each respective light source being low wattage and being capable operating on a one hundred percent duty cycle as desired.. .
Seasonal Specialties, Llc


12/31/15
20150381060 

Quasi-resonant half-bridge converter and control method thereof


A quasi-resonant half-bridge converter includes a switch unit including first and second switches that are coupled in series, a capacitor unit coupled to the switch unit in parallel, a rectifier unit, an output capacitor, and a transformer coupled to the aforesaid components. The first and second switches are respectively controlled using first and second control signals that have a constant frequency.
Lite-on Technology Corp.


12/31/15
20150381049 

Power converter with pseudo-constant-on-time control and the control circuit and method thereof


A control circuit for controlling a switching circuit is disclosed. The control circuit has a ramp compensation circuit, a ramp regulating circuit and a comparison circuit.
Chengdu Monolithic Power Systems Co., Ltd.


12/31/15
20150381038 

Circuits, devices and methods for bypassing voltage regulation in voltage regulators


Circuits, devices, and method for bypassing voltage regulation in voltage regulators. A voltage regulator may include a duty cycle component configured to determine whether a duty cycle of the voltage regulator is greater than a threshold duty cycle.
Skyworks Solutions, Inc.


12/31/15
20150381035 

Droop reduction circuit for charge pump buck converter


A charge pump buck converter (cpbc) includes a bc including an inductor and a cp coupled in parallel. Control logic is coupled to a switch driver coupled to a power switch(es).
Texas Instruments Incorporated


12/31/15
20150381034 

Charge pump device and driving capability adjustment method thereof


A charge pump device includes a driving stage, for generating a driving signal corresponding to a driving capability, a charge pump circuit, for generating an output voltage according to the driving signal, a comparing circuit, for generating a comparison result according to the output voltage and a reference voltage, a duty cycle detecting circuit, for detecting a length of a duty cycle of an indicating signal indicating the comparing result, to generate a detection result indicating the duty cycle, and a driving capability control circuit, coupled between the duty cycle detecting circuit and the driving stage, for controlling the driving capability corresponding to the driving signal according to the detection result.. .
Novatek Microelectronics Corp.


12/31/15
20150378368 

Method for operating a switch valve


A method for operating a switch valve which opens and closes a fluid line is disclosed. The switch valve is actuated by a pulse width modulated signal.
Continental Automotive Gmbh


12/31/15
20150377967 

Duty cycle based timing margining for i/o ac timing


Testing i/o (input/output) eye width for an interface with an inverted modulated strobe or clock signal. An i/o interface includes multiple signal lines, each with a hardware i/o buffer with timing characteristics.

12/31/15
20150377431 

Induction rechargeable electronic candle system


A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an ac signal whose duty cycle is controlled by a pulse width modulator ic to induce a voltage across secondary windings contained within the candle housing.
Shenzhen Liown Electronics Company Ltd.


12/31/15
20150375328 

Welding power supply with digital controller


A welding power supply including power conversion circuitry adapted to receive a primary source of power, to utilize one or more power semiconductor switches to chop the primary source of power, and to convert the chopped power to a welding output is provided. The provided welding power supply includes a pulse width modulated (pwm) digital controller including gate drive circuitry that generates a pwm output signal that controls the switching of the one or more power semiconductor switches.
Illinois Tool Works Inc.


12/31/15
20150375187 

Photocatalyst air purification system with ultraviolet light emitting diodes operated with a duty cycle


An air purification system includes a photocatalyst on a support disposed to contact airflow through an airflow channel passing across or through the support; an ultraviolet light emitting diode (uv-led) disposed to emit ultraviolet light onto the photocatalyst, the uv-led operated at a less than one hundred percent duty cycle, the duty cycle determined at least in part as a function of a desired minimum volatile organic compound conversion rate of air flowing through the airflow channel and a desired maximum by-product concentration of air flowing through an outlet of the airflow channel.. .
Honeywell International Inc.


12/24/15
20150373807 

Light emitting diode driving apparatus capable of detecting whether current leakage phenomenon occurs on led load and light emitting diode driving method thereof


A light-emitting-diode (led) driving apparatus and an led driving method suitable for driving an led load are provided. The led driving apparatus includes a driving circuit, a feedback circuit, and a control chip.
Beyond Innovation Technology Co., Ltd.


12/24/15
20150372605 

Controlling a switched mode power supply with maximised power efficiency


A control circuit operable to generate a control signal to control the duty cycle of a switched mode power supply is provided. The control circuit comprises an input terminal for receiving a signal indicative of an input voltage (vin) of the switched mode power supply, and a reference signal generator to generate, in dependence upon the received signal, a reference signal (vr) that is a function of the input voltage (vin).
Telefonaktiebolaget L M Ericsson (publ)


12/24/15
20150372359 

Pulsed mode apparatus with mismatched battery


A pulse mode apparatus comprises a mismatched battery electrically connected to a pulse mode device having a pulse duty cycle with a power-on time period and a power-off time period. The mismatched battery comprises a first battery cell having a first internal resistance and first charge capacity, and a second battery cell having a second internal resistance and second charge capacity, and the battery comprises at least one of the following: (1) the second internal resistance is less than the first internal resistance, and (2) the second charge capacity is less than the first charge capacity.
Front Edge Technology, Inc.


12/24/15
20150369685 

Method for determining the opening point of a valve


Disclosed is a method for determining the opening point po of a two-position valve (1) controlled by a pulse width-modulated signal (6), the method including the following steps: controlling the valve (1) by a pulse width-modulated test signal st having a duty cycle r growing as a function of time t; and detecting an opening of the valve (1) by observation of a variation in the time of a detection signal s provided by a pressure signal (7) measured by a pressure sensor (2) arranged in a pipe (4, 5) connected to the valve (1) and noted at a moment to of the variation of the detection signal s, the opening point po being the duty cycle r of the test signal st at the noted moment to.. .
Continental Automotive Gmbh


12/24/15
20150367792 

Control and diagnostics of multiple electrical generating machines using an external voltage regulator


An electrical system for an automotive vehicle has a plurality of electrical generating machines having field windings energized by pulse width modulated drive signals generated by an external electronic voltage regulator. The pulse width modulated drive signals have a duty cycle determined by the electronic voltage regulator.

12/17/15
20150365087 

Duty cycle-controlled load switch


A switch includes a power transistor configured to switch an input voltage to a load. The switch further includes a charge pump and a duty cycle controller.
Texas Instruments Incorporated


12/17/15
20150365026 

Single-shunt current sensing for multi-phase motor


A motor controller for providing a three-phase alternating current (ac) signal to a three-phase motor. The motor controller uses current feedback from a single shunt to monitor or control the three phase ac signal.
Nidec Motor Corporation


12/17/15
20150365002 

Power conversion system and power conversion method


A power conversion system includes at least two power converters and a current sharing bus, each power converter including a switching circuit, a power conversion circuit configured to receive an input voltage via the switching circuit and to provide a local output current, an output sense circuit configured to detect the local output current and to generate a local output current sense signal, a current sharing terminal coupled to the local output current sense signal via a resistor and coupled to the current sharing bus; and a pwm controller configured to adjust a duty cycle of the switching circuit based at least in part on the local output current sense signal provided by the output sense circuit and an average current signal on the current sharing bus.. .
Murata Manufacturing Co., Ltd.


12/17/15
20150362641 

High index contrast grating structure for light manipulation and related method


A high index contrast grating (hicg) structure is disclosed. The hicg structure includes plurality of gratings fabricated from a high refractive index layer.
The Regents Of The University Of California


12/17/15
20150360491 

Method and single-pass failed nozzle compensation


Compensation algorithms are applied to hide failed nozzles or, at least, reduce the objectionable effect of such nozzles in a printed image. Once a failed nozzle or under-performing nozzle is detected in a single-pass printing system, it is shut-off and the image data that was intended to be printed by this nozzle is redistributed to its neighboring nozzles.
Electronics For Imaging, Inc.


12/10/15
20150359038 

Transducer access point


The invention relates to a method and apparatus for exposing (i.e. Bridging) data and services offered by low power, low duty cycle transducers (e.g.
Intel Corporation


12/10/15
20150358486 

Improved voltage boost for et modulator


There is disclosed a voltage supply stage comprising an input supply voltage, a first (102) and second (104) switch connected in series, the first (102) and second (104) series-connected switches being connected in parallel with the input supply voltage between first and second terminals of the input supply voltage, a third (106) switch and capacitor connected in series, the series-connected third (106) switch and capacitor being connected in parallel with the first (102) switch, a fourth (108) switch connected between the connection of the third switch and the capacitor and an output, and a fifth (110) switch connected between the output and a terminal of the input supply voltage, wherein: in a first phase of operation, the first and the fourth switch are closed, and the second, third and fifth switches are open; in a second phase of operation, the second, third and fifth switches are closed, and the first and fourth switches are open; and the duty cycle of the first and second phases is controlled such that the average voltage on the output varies between 0 volts and twice the input supply voltage.. .
Snaptrack, Inc.


12/10/15
20150358002 

Pulse width modulator for use in aviation


A pulse width modulator for use in avionics is described. This comprises an input operable to receive a direct current input and an output switch controlled to provide a pulse train having a duty cycle, whereby the output switch is configured such that each pulse within the pulse train has at least one of a sloping rising or falling edge..
Aim Aviation Ltd


12/10/15
20150358001 

Wide-band duty cycle correction circuit


A duty cycle correction circuit includes a rising edge variable delay circuit and a falling edge variable delay circuit. The variable delay for each delay circuit depends upon an uncorrected duty cycle for an uncorrected clock signal being corrected by the duty cycle correction circuit into a corrected clock signal having a desired duty cycle..
Qualcomm Incorporated


12/10/15
20150357914 

Method for a current mode buck-boost converter


A current mode control buck-boost converter with improved performance utilizes separate buck and boost pulses. The buck-boost converter utilizes a buck/boost decision method with continuous control voltage for buck and boost mode, therefore eliminating transients in the control loop between operation modes and preventing voltage overshoots.
Dialog Semiconductor Gmbh


12/10/15
20150356035 

Self-aligning a processor duty cycle with interrupts


In an embodiment, a processor includes a plurality of cores to independently execute instructions, at least one graphics engine to independently execute graphics instructions, and a power controller including a duty cycle logic to set a duty cycle having a cycle time formed of an active time window in which at least some of the plurality of cores are to be active and an idle time window in which the plurality of cores are to be in a low power state. The duty cycle logic may adjust a duration of at least one of an active time window and an inactive time window based on interrupt information to accommodate an impending interrupt within the active time window.

12/10/15
20150355705 

Forcing a processor into a low power state


In an embodiment, a processor includes multiple cores and a power controller. The power controller may include a hardware duty cycle (hdc) logic to cause at least one logical processor of one of the cores to enter into a forced idle state even though the logical processor has a workload to execute.

12/10/15
20150354077 

Electrodeposition of chromium from trivalent chromium using modulated electric fields


A layer of chromium metal is electroplated from trivalent chromium onto an electrically conducting substrate by immersing the substrate and a counter electrode in a electroplating bath and passing a modulated electric current between the electrodes. In one embodiment, the current contains pulses that are cathodic with respect to said substrate and in another embodiment the current contains pulses that are cathodic and pulses that are anodic with respect to said substrate.
Faraday Technology, Inc.


12/10/15
20150352564 

Personal rechargeable portable ionic air purifier


A portable rechargeable personal ionic air purifier energizing a personal airspace and cleaning particulate pollutants therefrom in a manner that poses little or no personal shock risk and that minimizes battery drain to maximize battery life includes ionization means and ionization actuation means cooperative to provide ion bursts at regular intervals to energize and to clean particulates from the personal airspace. The ionization means includes an ion emitter and the ionization activation means includes means for providing a pulse train of predetermined frequency and duty cycle.
Headwaters, Inc


12/03/15
20150351190 

Solid state lighting apparatuses, circuits, methods, and computer program products providing targeted spectral power distribution output using pulse width modulation control


A solid state lighting apparatus can include a variable color input signal configured to indicate a target color of light output from the apparatus. A string current pulse width modulation (pwm) controller circuit can be coupled to the variable color input signal, where the string current pwm controller circuit can be configured to generate a plurality of pwm signals having respective variable duty cycles to enable/disable respective particular string currents for respective variable times as the variable color input signal changes..
Cree, Inc.


12/03/15
20150349844 

Long preamble and duty cycle based coexistence mechanism for power line communication (plc) networks


Embodiments of methods and systems for supporting coexistence of multiple technologies in a power line communication (plc) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the plc channel multiple times.
Texas Instruments Incorporated


12/03/15
20150346239 

Broad-range current measurement using duty cycling


An apparatus, method and integrated circuit for broad-range current measurement using duty cycling are disclosed. Embodiments of an apparatus for sensing current through a transistor device may include an interface configured to receive a current from the transistor device for sensing.
Nxp B.v.


11/26/15
20150341021 

Apparatuses, methods, and circuits including a duty cycle adjustment circuit


Apparatuses, methods, and duty cycle correction circuits are described. An example apparatus includes a duty cycle correction (dcc) adjustment circuit configured to receive an input signal, and to adjust a duty cycle of the input signal to provide an output signal.
Micron Technology, Inc.


11/26/15
20150340942 

Switching mode power supply


A switching mode power supply, including a drive circuit, a low-pass filter, a feedback circuit, an operational amplifier, a reference voltage signal generation circuit, a comparator, a pulse width modulation (pwm) signal generation circuit, and a duty cycle detection circuit, where the duty cycle detection circuit is configured to convert a pwm signal that is output by the pwm signal generation circuit or a pulse output voltage signal that is output by the drive circuit into a triangular wave signal, and input the triangular wave signal to a negative input end of the comparator. The present invention is used to avoid using a complex collection circuit to collect a signal from an inductor, thereby reducing complexity of the switching mode power supply, decreasing a current collection time, and improving an operating frequency..
Huawei Technologies Co., Ltd.


11/26/15
20150336469 

System comprising a battery formed by battery modules, and corresponding connecting or disconnecting a battery module


A system and corresponding method, including a battery including a plurality of battery modules arranged in series, each module including a switch and a diode arranged in series and connected in parallel to the module. The system further includes a capacitor connected directly by an electrical connection to a point situated between the diode and the switch of each module, and directly to the negative terminal of the battery, and a load connected in parallel to the capacitor, a mechanism controlling each module switch using a pulse width modulation signal having a duty cycle that varies between 0% and 100%..
Renault S.a.s.


11/26/15
20150335893 

Implanted pulse generators with reduced power consumption via signal strength/duration characteristics, and associated systems and methods


Implanted pulse generators with reduced power consumption via signal strength-duration characteristics, and associated systems and methods are disclosed. A representative method for treating a patient in accordance with the disclosed technology includes receiving an input corresponding to an available voltage for an implanted medical device and identifying a signal delivery parameter value of an electrical signal based on a correlation between values of the signal delivery parameter and signal deliver amplitudes.
Nevro Corporation


11/19/15
20150333676 

Electronic switch controller, electronic switch control method, electronic switch and electronic device


An electronic switch controller, an electronic switch control method, an electronic switch and an electronic device are disclosed. The processor comprises voltage-stabilized power supplies, a processor and a driving circuit; the processor is connected between the voltage-stabilized power supplies and a measurement device to receive working parameters of the power supply, a load and the electronic switch measured by the measurement device, read duty cycle parameters matching with the working parameters, calculate a new duty cycle with the duty cycle parameters and the working parameters, adjust the current control signal to a pwm signal having the new duty cycle, and send the pwm signal to the driving circuit; and the driving circuit is connected between the voltage-stabilized power supplies and the load to control the rotation speed of the motor in the load.
Shanghai Baicheng Electric Equipment Manufacture Co., Ltd.


11/19/15
20150333675 

Methods and systems to improve dc motor cooling fan efficiency with pulse width modulation frequency variation


Methods, systems and a vehicle are provided for. The method provides for controlling pulse width modulation by a transistor based on the speed of a motor and a transfer function.
Gm Global Technology Operations Llc


11/19/15
20150333635 

Dc/dc converter and controlling the same


A method for controlling a dc/dc converter includes the steps of: controlling and keeping an output voltage of the dc/dc converter to stabilize at a first value according to a first interval of an input voltage of the dc/dc converter; controlling and keeping the output voltage of the dc/dc converter to stabilize at a second value according to a second interval of the input voltage of the dc/dc converter; controlling the second value of the output voltage to be greater than the first value; and controlling a switching frequency or a duty cycle of the dc/dc converter within a first predetermined range in the first and second intervals.. .
Delta Electronics (shanghai) Co., Ltd.


11/19/15
20150332924 

Method and beam deflection in a gas cluster ion beam system


Provided is a method of controlling a gas cluster ion beam (gcib) system for processing structures on a substrate. A gcib system comprises deflection plates for directing a gcib towards a substrate, the gcib system coupled to a substrate scanning device configured to move a substrate in three dimensions.
Tel Epion Inc.


11/19/15
20150331049 

Systems and methods for sensing current while minimizing measurement error and power loss


A method may include deactivating a switch of a measurement circuit during a measurement portion of at least one voltage regulator phase, wherein each of the at least one voltage regulator phase is integral to a voltage regulator and each of the at least one voltage regulator phase comprises a power stage. The power stage may include a high-side switch for delivering electrical current to the at least one information handling resource in conformity with a first duty cycle of the high-side switch.
Dell Products L.p.


11/19/15
20150328467 

Methods and apparatuses for control of a wearable transdermal neurostimulator to apply ensemble waveforms


Methods and apparatuses for controlling a wearable neurostimulator from a control apparatus. Described herein are methods and apparatuses for controlling the application of ensemble waveforms using a transdermal electrical stimulation by a neurostimulator having a processor.

11/19/15
20150328461 

Methods and apparatuses for amplitude-modulated ensemble waveforms for neurostimulation


Methods and apparatuses for amplitude modulation of all or a portion of an ensemble waveform to modify a user's cognitive state by transdermal electrical stimulation (tes). An ensemble current waveform may include a sequence of component biphasic current waveforms in which one or more parameters (such as frequency, current amplitude, percent duty cycle, and percent charge imbalance) vary between sequential component waveforms.

11/19/15
20150328460 

Methods and systems for treating a chronic low back pain condition using an implantable electroacupuncture device


An exemplary method of treating a chronic low back pain condition in a patient includes 1) generating, by an electroacupuncture device implanted beneath a skin surface of the patient at at least one of acupoints bl22, bl23, bl24, bl25, and bl26 within the patient, stimulation sessions at a duty cycle that is less than 0.05, wherein the duty cycle is a ratio of t3 to t4 and each stimulation session included in the stimulation sessions has a duration of t3 minutes and occurs at a rate of once every t4 minutes, and 2) applying, by the electroacupuncture device, the stimulation sessions to the target tissue location in accordance with the duty cycle.. .
Valencia Technologies Corporation


11/12/15
20150326363 

Apparatus and transmitting muting information, and acquiring channel state using same


The present disclosure relates to an apparatus and a method for transmitting muting information in a wireless communication system, and to an apparatus and a method for acquiring channel state using same. In an exemplary embodiment, muting information includes: a first data field, having a serving cell for receiving from peripheral cells in a multi-cell environment, at least one of a csi-rs pattern, the number of csi-rs antenna ports, a csi-rs duty cycle, and csi-rs transmission subframe offset information, and using same for expressing the cycle and the offset of muting subframes, which pertain to information on a resource block that can generate interference between the peripheral cells and csi-rs; and a second data field for expressing a specific muting pattern, which must be muted within the muting subframes, having either 12 bits or 28 bits that display muting application in a bitmap format..
Pantech Co., Ltd.


11/12/15
20150326189 

Amplification circuit adjusting duty cycle of output signal


An amplification circuit includes an input portion, a first load portion, a second load portion, and a duty cycle adjustment portion. The input portion changes a voltage level of an output node, which outputs a voltage level thereof as an output signal, in response to an input signal.
Sk Hynix Inc.


11/12/15
20150326161 

Circuit and frequency synthesis for signal detection in automatic voltage regulation for synchronous generators


Automatic voltage regulation is shown involving full wave rectifying a power signal and generating a reference corresponding to an operating voltage level, line sampling the power signal and comparing it to the reference to generate a line sync signal synchronized to the power signal. Producing 90° out of phase signals synchronized to the line sync signal with a pll locked onto the line sync signal that outputs a phase error signal.

11/12/15
20150326153 

Motor driving circuit, cooling apparatus and electronic device using the same


A driving circuit of an electric motor includes: a pwm input pin for externally receiving an input pulse modulation signal with an input duty cycle; a duty cycle to digital converter for receiving and converting the input pulse modulation signal into a first digital value; a slope setting pin for receiving information indicative of a slope of an output duty cycle corresponding to the input duty cycle; a slope acquisition unit for acquiring a second digital value corresponding to the information indicative of the slope; a duty cycle computation unit for generating a linearly increased duty cycle instruction value corresponding to the first digital value by referring to the slope; a digital pulse width modulator for generating a controlling pulse having the output duty cycle corresponding to the duty cycle instruction value; and an output circuit for driving the electric fan motor in accordance with the controlling pulse.. .
Rohm Co., Ltd.


11/12/15
20150326144 

Dc-eliminating current controller for grid-connected dc/ac converters


Systems, methods, and devices which eliminate the dc current from the output of grid-connected inverters. A current controller is provided which interfaces with a grid-connected dc/ac inverter.

11/12/15
20150326041 

Balancing device and electrical storage device


There is provided a balancing device that equalizes voltages between storage cells of a battery composed of a plurality of series-connected storage cells or voltages between electrical storage modules composed of a plurality of series-connected storage cells of the battery. The balancing device equalizes voltages between the energy storage modules by transferring electric power between the electrical storage modules through an element to which all of the electrical storage modules are connected, the transferring being realized by on-off control of current supply to each of the electrical storage modules, the on-off control being performed with a first duty cycle.
Fdk Corporation


11/12/15
20150323612 

Magnetic field sensor configured to measure a magnetic field in a closed loop manner


A magnetic field sensor for sensing an external magnetic field includes at least one magnetic field sensing element for measuring a magnetic field produced by a first magnetic field generating source and a current generator configured to receive one or more drive current signals at an input thereof and to generate a drive current signal having a periodic waveform and an amplitude offset at an output thereof. Also included is a second magnetic field generating source configured to receive the drive current signal at an input thereof and in response thereto, provide a magnetic field to the at least one magnetic field sensing element.
Allegro Microsystems, Llc


11/12/15
20150323579 

Duty cycle detector and semiconductor integrated circuit apparatus including the same


A duty cycle detector may include a rising clock detection unit enabled in response to a first control signal; a falling clock detection unit enabled in response to a second control signal with a different activation timing from the first control signal; and a comparison unit configured to compare an output signal of the rising clock detection unit to an output signal of the falling clock detection unit in response to a comparison enable signal, and output a duty cycle detection signal.. .
Sk Hynix Inc.


11/12/15
20150323510 

Olfactory application controller integrated circuit


An integrated circuit that senses ambient gas concentrations includes a microcontroller, gas sensors, heating resistors and an analog-to-digital converter. A first gas sensor measures a first attribute of a gas concentration, and a second gas sensor measures a second attribute of the gas concentration.
Active-semi, Inc.


11/12/15
20150321007 

Methods and systems for treating hypertension using an implantable electroacupuncture device


A method of treating hypertension in a patient includes 1) generating, by an electroacupuncture device implanted beneath a skin surface of the patient at an acupoint corresponding to a target tissue location within the patient, stimulation sessions at a duty cycle that is less than 0.05, wherein the duty cycle is a ratio of t3 to t4, each stimulation session included in the stimulation sessions has a duration of t3 minutes and occurs at a rate of once every t4 minutes, and the electroacupuncture device comprises a central electrode of a first polarity and an annular electrode of a second polarity and that is spaced apart from the central electrode; and 2) applying, by the electroacupuncture device, the stimulation sessions to the target tissue location by way of the central electrode and the annular electrode in accordance with the duty cycle.. .
Valencia Technologies Corporation


11/12/15
20150321006 

Methods and systems for treating cardiovascular disease using an implantable electroacupuncture device


An exemplary method treating a cardiovascular disease in a patient includes 1) generating, by an electroacupuncture device implanted beneath a skin surface of the patient at an acupoint corresponding to a median nerve of the patient, stimulation sessions at a duty cycle that is less than 0.05, wherein the duty cycle is a ratio of t3 to t4, each stimulation session included in the stimulation sessions has a duration of t3 minutes and occurs at a rate of once every t4 minutes, and the electroacupuncture device comprises a central electrode of a first polarity and an annular electrode of a second polarity and that is spaced apart from the central electrode; and 2) applying, by the electroacupuncture device, the stimulation sessions to the median nerve by way of the central electrode and the annular electrode in accordance with the duty cycle.. .
Valencia Technologies Corporation


11/12/15
20150320482 

Surgical generator and related mitigating overcurrent conditions


A surgical generator and related method for mitigating overcurrent conditions are provided. The surgical generator includes a power supply, a radio frequency output stage, an overcurrent detection circuit in operative communication with an interrupt circuit, and a processor.
Covidien Lp


11/05/15
20150318824 

Variable duty-cycle multi-standard mixer


An adjustable mixer is disclosed that is capable of operating in different modes in order to satisfy the mixing requirement of multiple radio access technologies (rats). The adjustable mixer includes a lo signal generating portion and a mixing portion.
Broadcom Corporation


11/05/15
20150318784 

Adaptive soft switching control for power converter


Control apparatus for use in controlling a power converter adapted to carry out power conversion between a high-voltage end and a low-voltage end. The control apparatus comprises an input configured for receiving at least one input signal conveying a sensed voltage across the high-voltage end, a sensed voltage across the low-voltage end and a sensed current through the low-voltage end; circuitry configured for determining a target switching frequency, a target dead time and a target duty cycle for the converter based at least in part on the sensed voltages, the sensed current and at least one circuit characteristic of the converter; and an output configured for releasing at least one output signal to cause the converter to carry out soft switching in accordance with the target switching frequency, the target dead time and the target duty cycle..
Bombardier Transportation Gmbh


11/05/15
20150318778 

Inrush current control during starting of resonant converters


A converter with soft start includes a transformer; first and second switches connected to the transformer to supply power to the transformer; a controller connected to the first and second transistors and arranged to, during startup of the converter, switch the first switch with a variable duty cycle and switch the second switch with either a fixed duty cycle or a variable duty cycle with pulses larger than pulses of the variable duty cycle of the first switch; and a bleed device arranged to set initial conditions of the converter before startup of the converter by discharging a capacitor in the converter before startup.. .
Murata Manufacturing Co., Ltd.


11/05/15
20150317937 

Data driving circuit for driving liquid crystal panel and driving liquid crystal panel


A data driving circuit includes a processing module for determining grayscale levels will be displayed by pixels on an nth scanning line and judging driving voltage polarities of the pixels; a storing module for storing duty cycles of charging voltages corresponding to grayscale levels of pixels on a liquid crystal panel; a switching module for reading duty cycles of charging voltages corresponding to the grayscale levels will be displayed by the pixels on the nth scanning line from the storing module and controlling charging times of the pixels according to the readout charging voltages; and a voltage selecting module for selecting charging voltages corresponding to the pixels on the nth scanning line according to the processing module determined grayscale levels will be displayed by the pixels and judged driving voltage polarities of the pixels, and supplying the selected charging voltages to the pixels through the switching module.. .
Shenzhen China Star Optoelectronics Technology Co. Ltd.


11/05/15
20150317496 

Method and limiting access to an integrated circuit (ic)


A method and apparatus for limiting access to an integrated circuit (ic) upon detection of abnormal conditions is provided. At least one of abnormal voltage detection, abnormal temperature detection, and abnormal clock detection are provided with low power consumption.
Freescale Semiconductor, Inc.


11/05/15
20150316941 

Temperature control in plasma processing apparatus using pulsed heat transfer fluid flow


Methods and systems for controlling temperatures in plasma processing chamber via pulsed application of heating power and pulsed application of cooling power. In an embodiment, temperature control is based at least in part on a feedforward control signal derived from a plasma power input into the processing chamber.
Applied Materials, Inc.


11/05/15
20150316501 

Gated voltammetry methods


A sensor system, device, and methods for determining the concentration of an analyte in a sample is described. Gated voltammetric pulse sequences including multiple duty cycles of sequential excitations and relaxations may provide a shorter analysis time and/or improve the accuracy and/or precision of the analysis.
Bayer Healthcare Llc


11/05/15
20150315697 

Apparatus and sputtering hard coatings


A plasma generator includes a chamber for confining a feed gas. An anode is positioned inside the chamber.
Zond, Llc


10/29/15
20150312982 

Led lighting system with accurate current control


A light emitting diode (led) lighting system and method are disclosed. The led lighting system and method include an led controller to accurately control a current in an led system.
Cirrus Logic, Inc.


10/29/15
20150312981 

Current adjusting device and adjustment method thereof


A current adjusting device is disclosed herein. The current adjusting device is utilized for adjusting a value of a current outputted into a load.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


10/29/15
20150312902 

Almost blank subframe based orthogonal resource allocation in a wireless network environment


An example method for facilitating almost blank sub-frame (abs) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving evolved universal terrestrial radio access network (e-utran) nodeb (enb), abs patterns from a plurality of neighboring enbs in a orthogonal frequency-division multiplexing based network, each neighboring enb transmitting a separate abs pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving enb within its serving cell, and computing an optimal abs pattern at the serving enb subject to the maximum duty cycle and based on the abs patterns received from the plurality of neighboring enbs. In specific embodiments, computing the optimal abs pattern includes identifying neighboring enbs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring enbs, and selecting each identified sub-frame for configuring as an abs..
Cisco Technology, Inc.


10/29/15
20150312901 

Almost blank subframe based orthogonal resource allocation in a wireless network environment


An example method for facilitating almost blank sub-frame (abs) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving evolved universal terrestrial radio access network (e-utran) nodeb (enb), abs patterns from a plurality of neighboring enbs in a orthogonal frequency-division multiplexing based network, each neighboring enb transmitting a separate abs pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving enb within its serving cell, and computing an optimal abs pattern at the serving enb subject to the maximum duty cycle and based on the abs patterns received from the plurality of neighboring enbs. In specific embodiments, computing the optimal abs pattern includes identifying neighboring enbs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring enbs, and selecting each identified sub-frame for configuring as an abs..
Cisco Technology, Inc.


10/29/15
20150311818 

Load impedance estimation and repetitive control method capable of allowing inductance variation for inverter


The present invention provides a load impedance estimation and repetitive control method capable of allowing inductance variation for an inverter, wherein the method is applied for predicting corresponding next-period switching duty cycles for four switching member sets of the inverter by way of sampling three phase voltages and calculating next-period voltage compensations based on the previous line-period voltage compensations. Moreover, during the calculation and prediction, the method also involves the inductance variations of the output inductors of the inverter into the load impedance estimation matrix equation.
National Tsing Hua University


10/29/15
20150311808 

Apparatus, cascaded power conversion


An apparatus, method, and system are provided for power conversion to supply power to a load such as a plurality of light emitting diodes. An exemplary apparatus comprises: a first power converter stage having a first power switch and a first inductive element; a second power converter stage having a second power switch and a second inductive element; a plurality of sensors; and a controller.
Point Somee Limited Liability Company


10/29/15
20150311803 

Enhanced power factor correction


A power converter is described that includes a switch. The power converter may also include a controller that controls the switch.
Infineon Technologies Austria Ag


10/29/15
20150311798 

Constant on-time switching converter with adaptive ramp compensation and control method thereof


A cot switching converter includes a first switch, a second switch, an inductor, an on-time control circuit configured to generate an on-time control signal, a ramp compensation generator configured to generate a compensation signal, a comparing circuit, a logic circuit, a driving circuit and a feed forward circuit configured to generate a compensation control signal based on the input voltage of the switching circuit. The comparing circuit compares the sum of the compensation signal and a feedback signal with a reference signal to generate a comparison signal.
Chengdu Monolithic Power Systems Co., Ltd.




Duty Cycle topics: Duty Cycle, Computer Program, Distributed, Buffer Circuit, Integrated Circuit, Differential Amplifier, Duty Cycle Correction, Ultrasonic, Reference Voltage, Thermostat, Modulation, Wireless Power, Calculator, Control Unit, Bridge Inverter

Follow us on Twitter
twitter icon@FreshPatents

###

This listing is a sample listing of patent applications related to Duty Cycle for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Duty Cycle with additional patents listed. Browse our RSS directory or Search for other possible listings.


1.4131

4678

0 - 1 - 101