Popular terms

[SEARCH]

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. Subscribe to the Duty Cycle RSS feed to automatically get the update: related Duty RSS feeds. RSS updates for this page: Duty Cycle RSS RSS


Power amplifier saturation detection

Skyworks Solutions

Power amplifier saturation detection

Low input voltage boost converter with peak inductor current control and offset compensated zero detection

University Of Virginia Patent Foundation

Low input voltage boost converter with peak inductor current control and offset compensated zero detection

Low input voltage boost converter with peak inductor current control and offset compensated zero detection

Data interface method and apparatus using de-skew function


Date/App# patent app List of recent Duty Cycle-related patents
07/23/15
20150208491 
 Accent lighting system patent thumbnailAccent lighting system
Apparatus for illuminating an object with light that is controlled for intensity and color temperature. A ceiling mounted luminaire contains a circuit that controls the intensity and color temperature of light emitting diodes (leds).
Method Lights, Llc


07/23/15
20150207463 
 Power amplifier saturation detection patent thumbnailPower amplifier saturation detection
In a portable radio transceiver, a power amplifier system includes a saturation detector that detects power amplifier saturation in response to duty cycle of the amplifier transistor collector voltage waveform. The saturation detection output signal can be used by a power control circuit to back off or reduce the amplification level of the power amplifier to avoid power amplifier control loop saturation..
Skyworks Solutions, Inc.


07/23/15
20150207411 
 Low input voltage boost converter with peak inductor current control and offset compensated zero detection patent thumbnailLow input voltage boost converter with peak inductor current control and offset compensated zero detection
The low input voltage boost converter with peak inductor current control and offset compensated zero detection provide a boost converter scheme to harvest energy from sources with small output voltages. Some embodiments described herein includes a thermoelectric boost converter that combines an ipeak control scheme with offset compensation and duty cycled comparators to enable energy harvesting from teg inputs as low as 5 mv to 10 mv, and the peak inductor current is independent to first order of the input voltage and output voltage.
University Of Virginia Patent Foundation


07/23/15
20150206273 
 Data interface method and apparatus using de-skew function patent thumbnailData interface method and apparatus using de-skew function
A low voltage differential signaling (lvds) transmitter may include an lvds transmission device configured to generate a transmission clock and serial data, which are synchronized to the transmission clock on respective clock and data channels. The transmission clock may have different signal patterns when the lvds transmission device is operating in normal and de-skew modes of operation.

07/16/15
20150201472 
 Flyback boost circuit, led backlight driving circuit and liquid crystal device patent thumbnailFlyback boost circuit, led backlight driving circuit and liquid crystal device
A flyback boost circuit is disclosed. The flyback boost circuit includes a converter, a switch module, a driving module and an output diode.

07/16/15
20150200674 
 Timing adjustment circuit, clock generation circuit, and  timing adjustment patent thumbnailTiming adjustment circuit, clock generation circuit, and timing adjustment
A timing adjustment circuit includes a detection unit to generate a detection signal in response to a first clock having a duty cycle of 50% and a first frequency, a second clock having a duty cycle of 50% and a second frequency that is half the first frequency, and a third clock having a duty cycle of 50%, the second frequency, and a phase displacement of 90 degrees relative to the second clock, the detection signal indicating timing relationship between the first clock and the second and third clocks, a low-pass filter to receive the detection signal, and a variable-delay circuit to adjust relative timing relationship between the first clock and the second clock in response to an output of the low-pass filter such that a center point of a pulse of the first clock is aligned with a center point of a pulse of the second clock.. .
Fujitsu Limited


07/16/15
20150200658 
 Fully differential level conversion circuit patent thumbnailFully differential level conversion circuit
A fully differential level conversion circuit includes a positive signal branch, a negative signal branch and a coupling branch. The negative signal branch has identical structural features with the positive signal branch, which includes a drive terminal and a load terminal, an external fully differential signal is inputted to the drive terminals of the positive signal branch and the negative signal branch correspondingly.
Ipgoal Microelectronics (sichuan) Co., Ltd.


07/16/15
20150200656 
 Duty cycle correction circuit and operation method thereof patent thumbnailDuty cycle correction circuit and operation method thereof
A duty cycle correction circuit includes a clock adjustment unit configured to adjust a duty ratio of an input clock signal in response to a duty control signal and generate an output clock signal, a tracking type setting unit configured to generate an tracking type selection signal for setting a first or second tracking type based on a duty locking state of the output clock signal, and a control signal generation unit configured to generate the duty control signal, into which the first or second tracking type is incorporated, in response to the tracking type selection signal and the output clock signal.. .
Sk Hynix Inc.


07/16/15
20150200655 
 Duty cycle correction circuit and operation method thereof patent thumbnailDuty cycle correction circuit and operation method thereof
A duty cycle correction circuit includes a clock adjustment unit configured to adjust a duty ratio of an input clock signal in response to a duty control signal and generate an output clock signal, a tracking type setting unit configured to generate an tracking type selection signal for setting a first or second tracking type based on a duty locking state of the output clock signal, and a control signal generation unit configured to generate the duty control signal, into which the first or second tracking type is incorporated, in response to the tracking type selection signal and the output clock signal.. .
Sk Hynix Inc.


07/16/15
20150200598 
 Control circuits and methods for regulating output voltages using multiple and/or adjustable reference voltages patent thumbnailControl circuits and methods for regulating output voltages using multiple and/or adjustable reference voltages
Methods of regulating an output voltage of a switched mode power supply having a variable input voltage and a power switch include adjusting a reference voltage to adjust a duty cycle of a control signal for the power switch. The reference voltage may be adjusted as a function of the duty cycle, in response to the duty cycle of the control signal being outside a defined range and/or in the response to a temperature within the switched mode power supply being above a threshold temperature.
Astec International Limited


07/16/15
20150200597 

Control circuits and methods for regulating output voltages using multiple and/or adjustable reference voltages


Methods of regulating an output voltage of a switched mode power supply having a variable input voltage and a power switch include adjusting a reference voltage to adjust a duty cycle of a control signal for the power switch. The reference voltage may be adjusted as a function of the duty cycle, in response to the duty cycle of the control signal being outside a defined range and/or in the response to a temperature within the switched mode power supply being above a threshold temperature.
Astec International Limited


07/16/15
20150200596 

Control circuits and methods for regulating output voltages using multiple and/or adjustable reference voltages


Methods of regulating an output voltage of a switched mode power supply having a variable input voltage and a power switch include adjusting a reference voltage to adjust a duty cycle of a control signal for the power switch. The reference voltage may be adjusted as a function of the duty cycle, in response to the duty cycle of the control signal being outside a defined range and/or in the response to a temperature within the switched mode power supply being above a threshold temperature.
Astec International Limited


07/16/15
20150200595 

Control circuits and methods for regulating output voltages based on adjustable references voltages


Control circuits are provided for regulating an output voltage of a switched mode power supply having a variable input voltage and at least one power switch. The control circuits are operable to generate a comparison voltage based on the output voltage of the switched mode power supply and a duty cycle of a control signal provided to the at least one power switch, determine a reference voltage based on whether the generated comparison voltage falls within one of a plurality of voltage ranges, and adjust the duty cycle of the control signal provided to the at least one power switch of the switched mode power supply as a function of the determined reference voltage and the output voltage.
Astec International Limited


07/16/15
20150200591 

Switched mode power supplies


A switched mode power supply, smps. The smps comprises a switch, one or more inductors, an output smoothing capacitor, and a controller.
Toumaz Microsystems Limited


07/16/15
20150198718 

Method and receiving navigation satellite signals from two bands


Systems, apparatus and methods in a mobile device to multiplex two global navigation satellite system (gnss) signals on a single hardware receiver chain are presented. The gnss signals may come from a common gnss system on two bands of two different gnss systems overlapping on a common band.
Qualcomm Incorporated


07/16/15
20150196761 

Method for treating cardiovascular disease using implantable electroacupuncture device


An implantable electroacupuncture device (iead) treats cardiovascular disease through application of stimulation pulses applied at at least one of acupoints ex-hn1, bl14, ht7, ht5, pc6, st36, li11, lu7, and lu2. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
Valencia Technologies Corporation


07/09/15
20150194920 

Motor controller maximizing energy savings


A motor controller and method for maximizing the energy savings in an ac induction motor at every load wherein the motor is calibrated at two or more load points to establish a control line, which is then programmed into a non-volatile memory (30) of the motor controller. A dsp-based closed-loop motor controller observes the motor parameters of the motor such as firing angle/duty cycles, voltage, current and phase angles to arrive at a minimum voltage necessary to operate the motor at any load along the control line.
The Powerwise Group, Inc.


07/09/15
20150194805 

Numerical control apparatus


To avoid overheating of a spindle motor as easy as possible, a numerical control apparatus measures a cycle time in machining a work (step s5), measures a current amount per unit cycle flowing to the spindle motor (steps s3 and step s4), calculates, on the basis of the measured current amount per unit cycle, a duty cycle time in which suppression of the occurrence of overheating of the spindle motor is guaranteed (step s6), determines on the basis of a comparison of the duty cycle time and the cycle time whether the spindle motor overheats (step s7), and, when the spindle motor overheats (yes at step s7), delays a start of the next cycle by a wait time setting value tw obtained by subtracting the cycle time from the duty cycle time (step s8, no at step s10, and step s11).. .
Mitsubishi Electric Corporation


07/09/15
20150192120 

Peristaltic pump with linear flow control


A peristaltic pump includes a conduit having a first end for receiving a fluid from a reservoir and a second end for delivering the fluid. A plurality of fingers are disposed at respective locations along a segment of the conduit and are configured to alternately compress and release the conduit at the locations.
Q-core Medical Ltd.


07/02/15
20150189706 

Led power supply with small dimming ratio control and control method thereof


A led driving control circuit for controlling a power switch in a led power supply includes: a feedback circuit coupled to a led load and generating a feedback signal indicative of an output voltage of the led power supply; an enabling circuit generating an enable signal according to the feedback signal, a first reference signal and a pwm dimming signal, wherein when the feedback signal is higher than the first reference signal, the enable signal synchronizes with the pwm dimming signal, and when the feedback signal is lower than the first reference signal, the duty cycle of the enable signal is higher than the duty cycle of the pwm dimming signal; and a feedback loop control circuit generating a control signal for controlling the power switch according to the feedback signal only when the enable signal is in an active state.. .
Chengdu Monolithic Power Systems Co., Ltd.


07/02/15
20150188463 

Controller for brushless dc motor with low torque ripple and method therefor


A controller for a bldc motor includes a pulse width modulator and a control circuit. The pulse width modulator provides at least one phase control signal for a corresponding phase of the bldc motor with a pulse width determined by a duty cycle signal.
Silicon Laboratories Inc.


07/02/15
20150188453 

Method and device for actuating an inverter


The invention relates to a method for actuating an inverter (10) by means of space vector pulse width modulation, in particular for actuating an electrical machine (14), wherein the inverter (10) has a plurality of controllable switches (s) and is configured to provide a multi-phase electrical voltage (u, v, w) in the form of a voltage space vector (v*), wherein the controllable switches (s) are actuated in such a manner that different duty cycles of the switches (s) are set and a plurality of successive different switching states (v0-v7) of the switches (s) are set up to provide the voltage space vector (v*), wherein the duty cycles of the switches (s) are extended during a pulse width modulation period (t) if a duty cycle of one of the switches (s) falls below a predefined threshold (44) during the pulse width modulation period (t).. .
Robert Bosch Gmbh


07/02/15
20150188425 

Buck converter and control method therefor


The present disclosure provides a pair of nmosfet switches connected in series, an output filter, a control circuit, a boot-strap capacitor and a disabling circuit. A high-side mosfet switch is coupled to an input voltage.
Anpec Electronics Corporation


07/02/15
20150188362 

Transformerless multi-level medium-voltage uninterruptable power supply (ups) system


Systems and methods for supplying power at a medium voltage from an uninterruptible power supply (ups) to a load without using a transformer are disclosed. The ups includes an energy storage device, a single stage dc-dc converter or a two-stage dc-dc converter, and a multi-level inverter, each of which are electrically coupled to a common negative bus.
Inertech Ip Llc


07/02/15
20150185095 

Methods of torque estimation and compensation and systems thereof


At least one example embodiment discloses a method including measuring phase currents associated with one or more stator windings of the machine, estimating terminal voltage values based on the measured phase currents representations of the machine and based on at least one of a duty cycle and a dead time ratio of the machine, transforming the terminal voltage values to derive direct and quadrature voltage representations consistent with the measured phase currents, determining a terminal power of one or more terminals of the machine, the terminal power directly based on one of the estimated terminal voltage values and direct and quadrature voltage representations of the machine and current command values and determining an estimated shaft torque of the machine based on the terminal power in accordance with at least one efficiency value based on machine parameters from a characterization of the machine.. .
Deere & Company


06/25/15
20150180458 

Method and system for controlling a charge pump


Embodiments of a method for controlling a charge pump and a control device for a charge pump are described. In one embodiment, a method for controlling a charge pump involves monitoring a power-on status of the charge pump, calculating a duty cycle of the charge pump within a time period based on the power-on status of the charge pump, and adjusting at least one of a clock frequency setting and a capacitance setting of the charge pump in based on the duty cycle of the charge pump.
Nxp B.v.


06/25/15
20150180328 

System and method providing over current protection based on duty cycle information for power converter


System and method for protecting a power converter. An example system controller for protecting a power converter includes a signal generator, a comparator, and a modulation and drive component.
On-bright Electronics (shanghai) Co., Ltd.


06/25/15
20150179446 

Methods for forming crystalline igzo through processing condition optimization


Embodiments described herein provide method for forming crystalline indium-gallium-zinc oxide (igzo). A substrate is provided.
Intermolecular, Inc.


06/25/15
20150177326 

Waveform calibration using built in self test mechanism


A system on a chip (soc) includes a transceiver comprising a transmitter having a power amplifier and a receiver having a signal buffer. At least one of the transmitter and receiver has a configurable portion that can be configured to produce a range of waveforms (both in waveshape as well as duty cycle).
Texas Instruments Incorporated


06/25/15
20150176709 

Method of controlling parking control device of transmission


A method of controlling a parking control device of a transmission may include a) inputting data about a state of a vehicle, b) determining, based on the data input at a step of the a), whether a current situation is a first situation in which an actuator of the parking control device of the transmission is to be promptly controlled, a second situation in which noise is controlled to be minimized, or a third situation which is a normal situation, and c) controlling a pulse width modulation (pwm) duty cycle required to control the actuator to different values depending on the first, second, and situations determined at a step of the b), thus driving the actuator.. .
Kia Motors Corp.


06/25/15
20150174411 

Methods and systems for employing a duty cycle in electrical stimulation of patient tissue


A method of delivering electrical stimulation energy includes receiving stimulation parameters such as a selection of one or more electrodes, a stimulation amplitude, and a stimulation frequency. The stimulation parameters define, at least in part, an electrical stimulation energy deliverable as a series of electrical pulses at the stimulation frequency.
Boston Scientific Neuromodulation Corporation


06/25/15
20150174403 

Transdermal electrical stimulation devices for modifying or inducing cognitive state


Portable transdermal electrical stimulation (tes) applicators for modifying a subject's cognitive state. In general, the portable applicators described are specifically configured and adapted to be lightweight and may be wearable, and to deliver a high-intensity tes able to evoke or enhance a predetermined cognitive effect.

06/25/15
20150173687 

Methods and systems for power optimization in a medical device


A physiological monitoring system may use photonic signals to determine physiological parameters. The system may vary parameters of a light drive signal used to generate the photonic signal from a light source such that power consumption is reduced or optimized.
Covidien Lp


06/18/15
20150171843 

High-resolution pulse width modulation signal generation circuit and method


A pulse width modulation (pwm) signal generation circuit and method are disclosed herein. The pwm signal generation circuit includes an integer part pulse generation circuit, and a fractional part pulse generation circuit.
Abov Semiconductor Co., Ltd.


06/18/15
20150171836 

Duty cycle correction circuit


A duty cycle correction circuit may include an error booster suitable for amplifying an input clock duty error, a driver suitable for driving an output clock based on the input clock, and a duty corrector suitable for correcting the output clock duty based on the duty error amplified by the error booster.. .
Sk Hynix Inc.


06/18/15
20150171835 

Integrated circuit failure prediction using clock duty cycle recording and analysis


A system is disclosed, which may include a clock distribution circuit. The clock distribution circuit may include a duty cycle controller to distribute a clock output signal to a plurality of remote locations on a clock grid.
International Business Machines Corporation


06/18/15
20150171834 

Duty cycle adjustment with error resiliency


The present disclosure regards adjusting a duty cycle, which includes generating a duty cycle signal having a voltage representing a duty cycle of a clock signal; adjusting a reference voltage generated by an adjustable reference voltage generator to match the duty cycle signal to produce a first matched value; inverting voltage sources of the reference voltage generator; adjusting, while the voltage sources are inverted, the reference voltage to produce a second matched value; and calculating a duty cycle value based on the first and second matched values.. .
International Business Machines Corporation


06/18/15
20150171730 

Buck-boost converter and regulation


A buck-boost converter includes a buck-boost voltage converter circuit, an error controller and a buck-boost mode controller. The buck-boost voltage converter includes switches.
General Electric Company


06/18/15
20150169036 

Rescheduling workloads to enforce and maintain a duty cycle


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 an alignment logic to cause at least one workload to be executed on a first core to be rescheduled to a different time to enable the plurality of cores to be active during an active time window and to be in a low power state during an idle time window. Other embodiments are described and claimed..

06/18/15
20150167625 

Plasma generation apparatus


The present invention addresses the issue of improving generation efficiency of plasma in relation to usage power in a plasma generation apparatus. The present invention is directed to a plasma generation apparatus provided with an electromagnetic wave emission antenna and a discharge electrode.
Imagineering, Inc.


06/11/15
20150163825 

Carrier sense adaptive transmission (csat) communication scheme detection and mitigation in unlicensed spectrum


Systems and methods for carrier sense adaptive transmission (csat) communication scheme identification and mitigation in unlicensed spectrum are disclosed. The identification may comprise, for example, identifying csat communication based on a presence of a first signal and an absence of a second signal of a radio access technology (rat) during a period of time.
Qualcomm Incorporated


06/11/15
20150162902 

Method and balancing currents


A method and apparatus are provided for balancing currents of two or more parallel-connected power semiconductor switches during an on-state of the switches. A control terminal of each switch is driven by a driver unit.
Abb Oy


06/11/15
20150162834 

Dual-mode voltage doubling buck converter with smooth mode transition


Devices and methods provide a voltage regulating device including voltage supply circuitry configured to receive a first voltage, generate at least a second voltage based on the first voltage, and output an output voltage, the output voltage being one of the first voltage and the second voltage based on a voltage selection signal; regulator circuitry configured to switch between the output voltage and a reference potential based on a control signal; and control circuitry configured to generate the control signal, the control signal having a first duty cycle if the output voltage is the first voltage and a second duty cycle if the output voltage is the second voltage, the control circuitry configured to adjust the second duty cycle based on, at least in part, a droop voltage in the regulator circuitry.. .
Fairchild Semiconductor Corporation


06/11/15
20150161950 

Backlight driving circuit, liquid crystal display device and drive method


The present invention provides a backlight drive circuit, and a liquid crystal display and a drive method for the same, wherein the backlight drive circuit includes: an error amplification unit configured to receive a feedback voltage from the backlight, and used for comparing the feedback voltage with a basis voltage, adjusting the amplification coefficient and the amplification speed for a comparison result based on the magnitude of the comparison result, and outputting an amplification result as a control signal; and a drive control unit configured to receive the control signal from the error amplification unit, and used for outputting, according to the control signal, a pulse width modulation dimming signal with a corresponding duty cycle to modulate a voltage signal output to the backlight from a power supply. The backlight drive circuit may be applied to driving operation for various display devises and capable of automatically adjusting response rate under different loading modes.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


06/11/15
20150159576 

Adaptive learning of duty cycle for a high pressure fuel pump


Methods and systems are provided for closed loop operation of a high pressure fuel pump connected to the direct injectors of an internal combustion engine. During operation of the high pressure pump a dead zone may exist where a substantial change in the pump duty cycle does not correspond to a substantial change in the fuel rail pressure.
Ford Global Technologies, Llc


06/11/15
20150158366 

System and controlling heater of environmentally-friendly vehicle


A system for controlling a heater of an environmentally-friendly vehicle includes a signal input configured to input a heating demand. A positive temperature coefficient (ptc) heater is a heat source for heating.
Hyundai Motor Company


06/04/15
20150155855 

Apparatuses and methods for duty cycle adjustments


Apparatuses and methods have been disclosed. One such apparatus includes a plurality of gates coupled together in series.
Micron Technology, Inc.


06/04/15
20150155839 

Reducing crosstalk and matched output power audio amplfiers


A multi-channel class d audio amplifier is provided to substantially reduce channel-to-channel crosstalk by employing in each channel a local triangle ramp generator controlled by a single global digital timing signal. The noise critical timing/integrating capacitor for the triangle ramp generator resides locally in each channel and adjacent to the pwm comparator of that channel and referenced to the local ground of that channel.
Crestron Electronics, Inc.


06/04/15
20150155790 

Method and device for frequency generation for a resonance converter


A method and an activation circuit for frequency generation for a resonance converter that is driven by a half bridge or a full bridge. An activation circuit with a controller excites a resonance circuit belonging to the resonance converter.
Siemens Aktiengesellschaft


06/04/15
20150155712 

Multi-level medium voltage data center static synchronous compensator (dcstatcom) for active and reactive power control of data centers connected with grid energy storage and smart green distributed energy sources


Systems and methods for supplying power (both active and reactive) at a medium voltage from a dcstatcom to an it load without using a transformer are disclosed. The dcstatcom includes an energy storage device, a two-stage dc-dc converter, and a multi-level inverter, each of which are electrically coupled to a common negative bus.
Inertech Ip Llc


06/04/15
20150155183 

Method and pulse electrochemical polishing


A method and apparatus for pulse electrochemical polishing a wafer are disclosed. The method comprises steps of: establishing a duty cycle table showing all points on the wafer, a removal thickness corresponding to every point and a duty cycle corresponding to the removal thickness; driving a wafer chuck holding and positioning the wafer to move at a preset speed so that a special point on the wafer is right above a nozzle ejecting charged electrolyte onto the wafer; looking up the duty cycle table and obtaining the removal thickness and the duty cycle corresponding to the special point; and applying a preset pulse power source to the wafer and the nozzle and the actual polishing power source for polishing the special point being equal to the duty cycle multiplying by the preset power source..
Acm Research (shanghai) Inc.


05/28/15
20150147155 

Fan control method, apparatus, and sytem


A fan control method, apparatus, and system, so as to implement speed regulation and rotation direction control on a four-wire system counter-rotating fan with a conventional four-wire fan interface by using a pwm control bus. The method provided by the embodiments of the present invention includes: receiving a first fan regulation and control signal sent by a system control module; converting the first fan regulation and control signal to a forward-rotating control signal, a counter-rotating control signal, or a rotation direction switchover control signal according to a duty cycle range of the first fan regulation and control signal and a current rotation direction of the fan; and sending a control signal obtained by the conversion to a fan driving module, so that the fan driving module drives, according to the control signal obtained by the conversion, the fan to operate..
Huawei Technologies Co., Ltd.


05/28/15
20150145608 

High frequency low-gain noise ring-type vco oscillator leading to a low-noise/area pll


A phase locked loop includes a voltage-controlled oscillator and a current mirror circuit that supplies a drive current to the voltage-controlled oscillator. The current mirror circuit includes a filter between a bias current generator and current mirror transistor.
Stmicroelectronics International N.v.


05/28/15
20150145439 

Pre-charging inductor in switching converter to achieve high pwm dimming ratio in led drivers


In a method for controlling a current regulator for dimming an led load, a dimming signal has a duty cycle that controls the led on-time and led off time at a fixed frequency. The regulator is controlled by the dimming signal to only supply current to the led load during the led on-time.
Linear Technology Corporation


05/28/15
20150145417 

Driver circuit with a semiconductor light source and operating a driver circuit


A driver circuit for a semiconductor light source and to a method for controlling the brightness thereof are provided. When a pulse width modulated semiconductor light source reaches a duty cycle threshold value, the voltage is increased or decreased through a variable voltage source in order to achieve a higher dynamic range..
Schott Ag


05/28/15
20150145347 

Low power consumption ac load switches


A circuit for ensuring ultra-low power relay switching to control an ac load and extend a battery's lifetime. A control circuit may be designed to work where power is provides at very low duty cycle in that the on-time of applied voltage is quite short compared to its off-time.
Honeywell International Inc.


05/28/15
20150145337 

Power sharing device and method thereof


A power sharing device and method thereof are disclosed herein. The power sharing device includes a control unit, multiple regulators and multiple feedback circuits.
Accton Technology Corporation


05/28/15
20150144609 

Welding or cutting power supply using phase shift double forward converter circuit (psdf)


A technique for dynamically adjusting an output voltage for a welding or cutting operation is provided. The technique allows for varying output voltage at the welding or cutting torch by manipulating the duty cycles of two forward converter circuits.
Illinois Tool Works Inc.


05/28/15
20150144539 

Parallel modules for in-line recharging of sorbents using alternate duty cycles


Parallel modules for in-line recharging of sorbent materials using alternate duty cycles for a sorbent cartridge. The sorbent cartridge can have two or more modules contained therein having connectors connecting each of the modules.
Medtronic, Inc.


05/28/15
20150144300 

Recirculating bath with global voltage compatibility


A recirculating bath includes a main power input configured to receive an alternating current and a heating element that is selectively coupled to the main power input. The heating element is selectively coupled to the main power input in response to an activation signal having a duty cycle.
Thermo Fisher Scientific (asheville) Llc


05/21/15
20150142199 

Methods for managing power consumption for a hands-free dispenser


Methods for managing power consumption of a battery-powered device such as a fluid dispenser are disclosed. One method includes setting a duty cycle of a sensor used by the device to a first range and setting a timer upon detection of a triggering event and also setting the duty cycle to a triggering event and also setting the duty cycle to a second range.
Gojo Industries, Inc.


05/21/15
20150138848 

System and method to reduce the energy storage requirements of a cascaded converter system


A method and system for controlling a cascaded converter has an upstream converter and a downstream converter coupled in series. An energy storage element is provided between the two converters for providing constant energy and to respond to a load step in the load of the system.
The Governing Council Of The University Of Toronto


05/21/15
20150138846 

Constant current control circuit for power converter and constant current control method thereof


A constant current control circuit includes a sample and hold unit coupled to a current sensing resistor of a power converter, for storing a current sensing voltage of the current sensing resistor; a first capacitor for storing a comparison voltage; a discharge unit coupled between the sample and hold unit and the first capacitor, for controlling a discharge current of the first capacitor according to a reference voltage and the current sensing voltage stored in the sample and hold unit; a charge unit coupled to the first capacitor, for controlling a charging current of the first capacitor according to the reference voltage and a ground voltage; and a comparator for comparing the comparison voltage with the reference voltage to generate a comparison result, and outputting a control signal according to the comparison result, in order to control a duty cycle of the power converter.. .
Advanced Analog Technology, Inc.


05/21/15
20150137867 

Apparatuses and methods for duty cycle adjustment


Apparatuses and methods for duty cycle adjustment are disclosed herein. An example apparatus may include a node, a phase mixer, and a duty cycle adjuster circuit.
Micron Technology, Inc.


05/21/15
20150137854 

High speed sampling front-end circuit


A high-speed sampling front-end circuit is presented that includes a mdac sampling network, a reference voltage generator circuit, a comparator array, an operational amplifier, an output short-circuit switch, an adjustable clock duty cycle stabilizer, a status control module and a feedback control module. The circuit features low power, high sampling rate and high input bandwidth of sampling network.
No. 24 Research Institute Of China Electronic Technology Corporation


05/21/15
20150137776 

Dc-dc converter with enhanced automatic switching between ccm and dcm operating modes


A dc-dc converter transitions between continuous conduction mode (ccm) and discontinuous conduction mode (dcm) without causing any overshoot or undershoot deviation output voltage. The dc-dc converter operates in a pwm mode in ccm.
Stmicroelectronics International N.v.


05/21/15
20150136183 

System of controlling treatment liquid dispense for spinning substrates


Provided is a method for cleaning an ion implanted resist layer or a substrate after an ashing process. A duty cycle for turning on and turning off flows of a treatment liquid in two or more nozzles is generated.
Tokyo Electron Limited


05/14/15
20150134189 

Systems and methods for remaining useful life predictions in drivetrains


Systems and methods for continually determining the remaining useful life of a drivetrain. The remaining useful life is continually determined during real-time operation of the drivetrain by determining a duty cycle based on torque and rotary speed measurements of the drivetrain.

05/14/15
20150134128 

Component temperature control by coolant flow control and heater duty cycle control


Methods and systems for controlling temperatures in plasma processing chamber for a wide range of setpoint temperatures and reduced energy consumption. Temperature control is coordinated between a coolant liquid loop and a heat source by a control algorithm implemented by the plasma processing module controller.

05/14/15
20150133057 

System and channel selection to reduce impact to an existing network


Described herein are techniques for reducing interference to non-cellular communications on an unlicensed band by a network entity sending/receiving cellular communications on the unlicensed band. For example, the technique may involve accessing a list of channels for cellular communication on the unlicensed band, the list having the channels in an order of priority for reducing interference to non-cellular communication on the unlicensed band.

05/14/15
20150130378 

Driving device and driving motor, cooling device and electronic machine


The present disclosure provides a device and a method for driving a motor that demonstrates low noise and/or low vibration. A pulse-modulated control pulse signal s2 is generated by a driving signal generation portion 310 at each phase.

05/14/15
20150129344 

Active front steering system lock


A vehicle including an active front steer system including a locking mechanism having a solenoid actuated locking pin and a spring for biasing the pin toward an extended or locked position for engaging a locking disc of the active front steer system wherein the active front steer system further includes a current sensor for sensing the motion of the pin of the solenoid when the engine of the vehicle is shut down and pulse width modulated current to the solenoid is reduced and when the pin movement is sensed, the pulse width modulated current is increased (fed forward duty cycle) to reduce the movement of the pin to reduce the noise made when the metal pin makes when contacting the metal locking disc. The end of the pin and/or the locking disc may also include an insulating material to further reduce any remaining noise made when the metal pin makes when contacting the metal locking disc..

05/14/15
20150128967 

Portable vaporizer and temperature control


A vaporizer and method of vaporizing a botanical material is described. Embodiments of the apparatus include a self-contained, fully enclosed, battery operated vaporizer having an air inlet and a mouthpiece.

05/07/15
20150126256 

Electronic device having a charging circuit


An electronic device is provided including: an electronic device comprising: a charging circuit including a battery coupled to a first end of an inductor, a first switch coupling a second end of the inductor to ground, and a second switch coupled to the second end of the inductor; and a controller configured to alternately close the first switch and the second switch in accordance with a duty cycle d, and increase a voltage transmitted to at least one system from the battery by using the inductor.. .
Samsung Electronics Co., Ltd.


05/07/15
20150122996 

Apparatus with sensor functionality and power management and associated methods


In an exemplary embodiment, an apparatus includes a sensor integrated circuit (ic) that is adapted for ambient light sensing (als) and/or proximity detection. The sensor integrated circuit (ic) includes an integrated analog-to-digital converter (adc) that is adapted to convert at least one signal related to ambient light sensing (als) and/or proximity detection to at least one digital signal, and an integrated light emitting diode (led) driver that is adapted to drive at least one led.
Silicon Laboratories Inc.


05/07/15
20150121610 

Micro-current sensing auto-adjusting heater system for eye-shield


Eye-shield condensation prevention system for use in a ski goggle, dive mask, medical or testing face shield or the like, that prevents undesirable hot spots on the eye-shield and maintains constant heat, with the ability to compensate for variations in resistance encountered from one eye-shield region to another, and/or one eye-shield to another, comprising a power source, a pulse-width modulator, a microcomputer, a heating element, and a sensing circuit. The microcomputer uses the sensing circuit to sense voltage and determine a value of resistance of the heating element.
Abominable Labs, Llc


04/30/15
20150119956 

Implantable neurostimulator-implemented method utilizing multi-modal stimulation parameters


Multi-modal stimulation therapy may be utilized in which two or more stimulation therapies having different stimulation parameters may be delivered to a single patient. This can preferentially stimulate different nerve fiber types and drive different functional responses in the target organs.
Cyberonics, Inc.


04/30/15
20150119873 

Electrosurgical medical system and method


A system for controlling an electrosurgical electrode of a medical device includes a hand-held electrosurgical electrode having cutting probe. A return electrode is positioned remote from the electrosurgical electrode.
Senorx, Inc.


04/30/15
20150118846 

Method for trimming carbon-containing film at reduced trimming rate


A method for trimming a carbon-containing film includes: (i) providing a substrate having a carbon-containing film formed thereon; (ii) supplying a trimming gas and a rare gas to the reaction space, which trimming gas includes an oxygen-containing gas; and (iii) applying rf power between the electrodes to generate a plasma using the trimming gas and the rare gas and to thereby trim the carbon-containing film while controlling a trimming rate at 55 nm/min or less as a function of at least one parameter selected from the group consisting of a flow rate of an oxygen-containing gas, a flow rate of nitrogen-containing gas to be added to the oxygen-containing gas, pressure in the reaction space, rf power, a duty cycle of rf power, a distance between the electrodes, and a temperature of a susceptor on which the substrate is placed.. .
Asm Ip Holding B.v.


04/30/15
20150117564 

Inductor-less 50% duty cycle wide-range divide-by-3 circuit


Certain aspects of the present disclosure provide apparatus for producing an output signal having a duty cycle of 50% and a frequency that is one third that of an input signal. One example frequency dividing circuit for producing such an output signal generally includes first and second flip-flops; first, second, and third logic circuits, each configured to function equivalently to a logic or gate; and an internal frequency dividing circuit configured to generate an output waveform having a frequency that is one half that of an input waveform..
Qualcomm Incorporated


04/30/15
20150116011 

High-speed divide-by-1.5 circuit with 50 percent duty cycle


A divide-by-1.5 circuit includes a divide-by-3 circuit that and a frequency doubler circuit. The divide-by-3 circuit has few logic elements and provides glitch-free operation with a 50 percent duty cycle output.
Avago Technologies General Ip (singapore) Pte. Ltd.


04/30/15
20150114992 

Grease gun with sensing capability and variable speed


Systems, methods, and apparatus for dispensing a lubricant are provided, in which the apparatus includes a chamber having an inlet through which the lubricant is received and an outlet through which the lubricant is ejected, and a piston movably positioned in the chamber. The apparatus also includes a motor coupled with the piston, and a power source coupled with the motor.
Aktiebolaget Skf


04/23/15
20150110143 

Adjustable impedance laser driver


An assembly that includes a laser diode and a driver circuit that operates to give the assembly an adjustable impedance. The driver circuit adjusts impedance by repeatedly alternating between two operational phases.
Xtera Communications, Inc.


04/23/15
20150109825 

Controlling a switched mode power supply with maximised power efficiency


A control circuit (200) operable to generate a control signal (d) to control the duty cycle of a switched mode power supply (100). The control circuit (200) comprises a reference signal generator (210) operable to receive a signal indicative of an input voltage (vin) of the switched mode power supply (100) and generate a reference signal (vr) that is a function of the input voltage (vin), and an offset reference signal generator (220) operable to generate an offset reference signal (vr—offset) “by’ combining the reference signal (vr) with an offset signal (voffset), the offset signal (voffset) being independent of the input voltage (vin), the control circuit (200) further comprises an error signal, generator (230) arranged to receive a signal indicative of an output voltage (vout) of the switched mode power supply (100) and operable to generate an error signal (ve) based on the offset reference signal (vr—offset) and based on the output voltage (vout).
Telefonaktiebolaget L M Ericsson (publ)


04/23/15
20150109056 

Class-d amplifier circuits


Methods and apparatus for class-d amplifier circuits with improved power efficiency. The circuit has an output stage with at least first and second switches and a modulator that receives an input signal to be amplified, sin, and a first clock signal fsw.
Wolfson Microelectronics Plc


04/23/15
20150109036 

Methods and apparatuses for duty cycle preservation


Methods and apparatuses are disclosed for preserving duty cycle at voltage domain boundaries. One example apparatus includes a complement generation circuit configured to generate a complementary signal responsive to an input signal.
Micron Technology, Inc.


04/23/15
20150108934 

Distributed fan control


A device for processing graphics data may include a plurality of graphics processing units. The device may include a fan to dissipate thermal energy generated during the operation of the plurality of graphics processing units.
Nvidia Corporation


04/23/15
20150108933 

Systems and speed and torque control of a dc motor


A method for operating a direct current (dc) motor is shown and described. The method includes generating a first pulse width modulated (pwm) signal having a first duty cycle, providing the first pwm signal as a pwm dc output for the dc motor, and adjusting the first duty cycle to control a speed of the dc motor.
Johnson Controls Technology Company


04/23/15
20150108908 

Driving a multi-color luminaire


Embodiments are disclosed for driving a multi-color solid state light source luminaire so as to maintain a color point as temperature varies within a given range. An array of solid state light sources includes two or more strings and is driven by a single constant current source.
Osram Sylvania Inc.


04/23/15
20150108847 

Wireless power communication


A remote device in accordance with the present invention includes an adaptive power receiver that receives wireless power from the wireless power supply by induction. The adaptive power receiver may be switched among two or more modes of operation, including, for example, a high-q mode and a low-q mode.
Access Business Group International Llc


04/23/15
20150108114 

Lithium ion battery heater systems and methods


A battery heater system for a battery used in cold weather operations and methods for using the battery heater system are described. Embodiments of the battery heater system may incorporate a heater switch with an indicator, a timer circuit, a controller, a voltage meter, a temperature transducer, and a heating element.
Cessna Aircraft Company




Popular terms: [SEARCH]

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.


0.5939

4690

2 - 1 - 101