Popular terms

[SEARCH]

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]

Inverter patents



      
           
This page is updated frequently with new Inverter-related patent applications. Subscribe to the Inverter RSS feed to automatically get the update: related Inverter RSS feeds. RSS updates for this page: Inverter RSS RSS


Inverter device and power converting method thereof

Fsp Technology

Inverter device and power converting method thereof

Feedforward voltage series compensator based on complementary use of wind power and photovoltaic power

Shanghai Jiao Tong University

Feedforward voltage series compensator based on complementary use of wind power and photovoltaic power

Feedforward voltage series compensator based on complementary use of wind power and photovoltaic power

Mitsubishi Electric

Electric motor control device and electric motor control method


Date/App# patent app List of recent Inverter-related patents
08/27/15
20150245416 
 Induction heating cooker patent thumbnailInduction heating cooker
When an inverter circuit is driven at a predetermined driving frequency, an amount of current change per predetermined period of time of an input current or a coil current is detected, and a heating period from a start of control until the amount of current change becomes a set value or less is measured. Then, the inverter circuit is controlled to reduce high frequency power to be supplied to a heating coil in accordance with a length of the measured heating period..
Mitsubishi Electric Corporation


08/27/15
20150244249 
 Inverter device and power converting method thereof patent thumbnailInverter device and power converting method thereof
The invention is directed to an inverter device and a power converting method thereof. A control unit adjusts a pulse width modulation (pwm) signal serving to control power conversion of an inverter circuit according to a current harmonic component detected by a detection unit to generate an offset current to be superposed to an ac current output by the inverter circuit..
Fsp Technology Inc.


08/27/15
20150244174 
 Feedforward voltage series compensator based on complementary use of wind power and photovoltaic power patent thumbnailFeedforward voltage series compensator based on complementary use of wind power and photovoltaic power
A feedforward voltage series compensator based on complimentary use of wind, solar, and electric power comprising a controller, a rectifier unit, an h bridge inverter, a series transformer, a wind-power dc voltage sensor, a wind-power dc current sensor, an ac voltage transducer, a dc boost unit, a pv dc voltage sensor, a pv dc current sensor, and a grid-connected inverter. The compensator makes use of wind-electric and photovoltaic-electric complimentary interactions to solve the traditional energy issue for series compensator, and as the grid-connected inverter is feedforward, there is extra capacity for the series transformer and the series complimentary inverter unit, and hence it enjoys the feedforward and quick voltage complimentary characteristics of the wind and solar power generation..
Shanghai Jiao Tong University


08/20/15
20150236623 
 Electric motor control device and electric motor control method patent thumbnailElectric motor control device and electric motor control method
A current command generator 117 generates a current command that indicates a value of current supplied from an inverter circuit to electric motors connected in parallel with the inverter circuit. A voltage command calculator 120 generates a voltage compensation signal for compensating a difference between a value of actual current supplied to each of the electric motors and a value of current indicated by the current command.
Mitsubishi Electric Corporation


08/20/15
20150236617 
 Zvs voltage source inverter with reduced output current ripple patent thumbnailZvs voltage source inverter with reduced output current ripple
Systems, methods, and devices relating to dc/ac converters. A circuit including a full bridge inverter is provided.

08/20/15
20150236600 
 Method for operating a resonant converter, and resonant converter patent thumbnailMethod for operating a resonant converter, and resonant converter
A method for operating a resonant converter having an inverter circuit, the inverter circuit having a plurality of switches, includes: switching each of the switches of the plurality of switches at an actuation frequency and with a phase angle offset relative to one another, such that a voltage of an output of the inverter circuit has a duty factor; and determining the actuation frequency and the duty factor for a prescribable operating point and with a prescribable phase reserve of the resonant converter. A resonant converter and an x-ray generator having a resonant converter are described..

08/20/15
20150235907 
 Semiconductor device and production method patent thumbnailSemiconductor device and production method
The object to provide a semiconductor device comprising a highly-integrated sgt-based cmos inverter circuit is achieved by forming an inverter which comprises: a first transistor including; an first island-shaped semiconductor layer; a first gate insulating film; a gate electrode; a first first-conductive-type high-concentration semiconductor layer arranged above the first island-shaped semiconductor layer; and a second first-conductive-type high-concentration semiconductor layer arranged below the first island-shaped semiconductor layer, and a second transistor including; a second gate insulating film surrounding a part of the periphery of the gate electrode; a second semiconductor layer in contact with a part of the periphery of the second gate insulating film; a first second-conductive-type high-concentration semiconductor layer arranged above the second semiconductor layer; and a second second-conductive-type high-concentration semiconductor layer arranged below the second semiconductor layer.. .
Unisantis Electronics Singapore Pte. Ltd.


08/13/15
20150230312 
 Lighting device, power transfer device, and luminaire patent thumbnailLighting device, power transfer device, and luminaire
A lighting device includes a power supplying unit that supplies power and a lighting unit operable using power supplied by power supplying unit. Power supplying unit includes: primary coil electrically connected to an output terminal of an output convertor that rectifies an alternating current supplied by an ac power source; and inverter circuit.
Lequio Power Technology Corp.


08/13/15
20150225013 
 Drive system, drive unit, control device and control method patent thumbnailDrive system, drive unit, control device and control method
A drive system includes: an inverter circuit including switching circuits for multiple phases, each of the switching circuits including an upper arm and a lower arm connected in series, and each of the upper and lower arms including multiple switching devices connected in parallel; a motor driven by the inverter circuit to generate steering torque; and a control device configured to control the inverter circuit. When detecting a fault in at least one of the multiple switching devices connected in parallel in any of the arms during use of a vehicle, the control device drives the remainder of the multiple switching devices in the arm where the fault is detected, until the vehicle is brought to a prescribed vehicle non-use state.
Toyota Jidosha Kabushiki Kaisha


08/06/15
20150222196 
 Electric power conversion apparatus patent thumbnailElectric power conversion apparatus
An electric power conversion apparatus includes a channel case in which a cooling water channel is formed; a double side cooling semiconductor module that has an upper and lower arms series circuit of an inverter circuit; a capacitor module; a direct current connector; and an alternate current connector. The semiconductor module includes first and second heat dissipation metals whose outer surfaces are heat dissipation surfaces, the upper and lower arms series circuit is disposed tightly between the first heat dissipation metal and the second heat dissipation metal, and the semiconductor module further includes a direct current positive terminal, a direct current negative terminal, and an alternate current terminal which protrude to outside.
Hitachi, Ltd.


08/06/15
20150217764 

Control device for hybrid vehicle for controlling the hybrid vehicle when a collision is detected


When a collision of a vehicle is detected, a control device performs fuel cut of an engine (14) in a case where the engine (14) is in a driven state, and engages an engine connection/disconnection clutch (ko) in a case where the engine connection/disconnection clutch (ko) is disengaged, whereby the rotational resistance of a motor (mg) is increased by drag of the engine (14) and the rotation speed (nmg) of the motor (mg) after the collision of the vehicle can be speedily reduced. Consequently, generation of an electromotive force by rotation of the motor (mg) is prevented, and it is possible to speedily complete discharge of an inverter circuit (40)..
Toyota Jidosha Kabushiki Kaisha


07/30/15
20150214875 

Motor control device provided with motor unit and inverter unit


Provided is a motor control device that detects a position error between a detection position, calculated from a rotation position sensor signal of a motor, and a position of a motor induced voltage and performs phase correction. A motor control device 400 includes an inverter unit (motor drive unit) 100 and a motor unit 300.
Hitachi Automotive Systems, Ltd.


07/30/15
20150214865 

Dc permanent magnet synchronous motor


A dc permanent magnet synchronous motor, including: a motor body including a rotating shaft, a permanent rotor assembly, a stator assembly, and a housing assembly; a motor controller including a first microprocessor for drive control, an inverter circuit, and a detection circuit for detecting operating parameters of the motor; and an external control card including a second microprocessor for application control. The operating parameters of the motor are input into the first microprocessor by the detection circuit.
Zhongshan Broad-ocean Motor Co., Ltd.


07/30/15
20150214855 

High powered current generator for electromagnetic inspection of hydrocarbon pipelines


A high powered current generator for electromagnetic inspection of hydrocarbon pipelines from an ac stabilized with rectangular waveform and whose measurements and interpretation are used for evaluating the condition of the lining of the pipelines of five main modules: self-programmable regulated voltage power source module; power source reference decoupling module; h bridge inverter module; feedback module, and control and processing module. The generator was specifically designed as part of the instrumentation of (ti ems); which supplies an electric current in the pipeline to produce electromagnetic radiation along the hydrocarbon pipeline.
Instituto Mexicano Del Petroleo


07/23/15
20150207443 

Method for increasing rotational speed range of ecm motor


A method for increasing rotational speed range of an ecm motor, including: 1) starting the motor and initializing parameters; 2) reading the rotor position signal from the hall sensor by the microprocessor and updating the rotor angle; 3) reading the dc bus current i and the rotational speed n of the motor; 4) inputting a target rotational speed s from an external device, acquiring the target rotational speed s by the microprocessor, calculating the rotational difference e, and utilizing a rotational speed pi regulator to output a regulating parameter v_d; 5) calculating an advance angle α=f(i, n) by the microprocessor, and calculating a real-time angle of the rotor θ=ω×t by the microprocessor; and 6) calculating a pwm signal input into the inverter circuit, and outputting a pwm chopper voltage u by the inverter circuit, where u=f(v_d, θ+α).. .
Zhongshan Broad-ocean Motor Co., Ltd.


07/23/15
20150207431 

Portable alternating current inverter having reduced impedance losses


A portable power supply apparatus is provided having reduced impedance losses. The portable power supply apparatus is comprised of: a portable housing; a battery system residing in the housing; and an inverter circuit residing in the housing.
Black & Decker Inc.


07/23/15
20150207427 

Power conversion device


An inverter circuit has a main circuit for converting dc power into output electric power and outputting the output electric power, and a filter capacitor connected in parallel with the main circuit. A supply switching circuit has a contactor that switches between supplying and not supplying dc power to the inverter circuit.
Mitsubishi Electric Corporation


07/09/15
20150195889 

Fluorescent electronic ballast


A fluorescent electronic ballast including: a rectifier circuit, for receiving an ac power supply and converting the ac power supply into a dc power supply; an inverter circuit, coupled to a fluorescent driver circuit, for converting the dc power supply into a high-frequency ac power supply for driving a fluorescent; and a detection protection circuit, coupled to the rectifier circuit and the inverter circuit, for detecting the dc power supply provided by the rectifier circuit, and cutting off the electric connection between a control chip of the inverter circuit and all of power supply when the voltage of the direct current power supply is lower than a predetermined value, wherein the power supply at least includes the direct current power supply provided by the rectifier circuit.. .
Delta Electronics, Inc.


07/09/15
20150194912 

Air conditioner


An air conditioner includes an inverter circuit, a control unit that controls the inverter circuit, a compressor having a protection device (a pressure switch), and a phase-voltage detection circuit (a u-phase voltage detection circuit) that detects a voltage at any of three-phase windings (compressor windings) of the compressor. The control unit includes a shutdown-cause specifying unit that determines presence or absence of an operation of the protection device based on a phase voltage value detected by the phase-voltage detection circuit, by turning on any of a plurality of switching elements constituting the inverter circuit, after the compressor has been shut down, and specifies a cause of the shutdown of the compressor..
Mitsubishi Electric Corporation


07/09/15
20150194909 

Zvs voltage source inverter


Systems and methods relating to zero voltage switching for inverters. A full bridge inverter is used in conjunction with a passive auxiliary circuit and an output filter.

07/09/15
20150194902 

Multilevel converter systems and methods with reduced common mode voltage


Multilevel converters and space vector modulation operating methods are presented in which fewer than all possible switching states are employed for space vector modulation of rectifier and inverter circuits to promote common mode voltage contribution cancellation or reduction therebetween and by using subsets of possible space vector modulation switching states associated with minimal positive or negative common mode voltages and in some cases using virtual vectors which have zero common mode voltages to eliminate the 3rd order harmonic components in common mode voltage as well as to reduce common mode voltage affects associated with multilevel inverter stages.. .
Rockwell Automation Technologies, Inc.


07/02/15
20150188426 

Power switching device, three phase bridge inverter, and operating a power switching device


A power switching device connected or connectable between a power supply and a load is described. The device may have at least two different operating states, each operating state having a different level of said output voltage associated with it.
Freescale Semiconductor, Inc.


07/02/15
20150188361 

Bypass type 220v grid voltage sag prevention device and control method therefor


Provided are a bypass type 220v grid voltage sag prevention device and a control method therefor. The bypass type 220v grid voltage sag prevention device comprises an ac-to-dc energy storage unit, a single chip microcomputer (scm) control and display unit, and an inverter output unit.
Northeastern University


07/02/15
20150184925 

Air conditioner and control air conditioner


An air conditioner including: a converter circuit that is on an electronic substrate and converts an alternating current to a direct current; an inverter circuit that is on the electronic substrate and converts a direct current converted by the converter circuit to an alternating current to operate a motor that drives a compressor; an inverter control circuit that is on the electronic substrate and drives the inverter circuit; and a temperature detector that detects an outside air temperature input to the inverter control circuit, wherein the inverter control circuit includes a locked energization control unit, and the locked energization control unit performs ac locked energization or dc locked energization on the motor in accordance with the outside air temperature detected by the temperature detector.. .
Mitsubishi Electric Corporation


06/25/15
20150180383 

Air blower equipped with brushless dc motor


Air blower equipped with a brushless dc motor includes an inverter circuit, a drive logic controller, a duty indicator, a motor voltage detector, a motor current detector, and a correlation detector. A duty indicating value of the duty indicator is determined according to a value of the correlation detector..
Panasonic Intellectual Property Management Co., Ltd.


06/25/15
20150180369 

Cascaded h-bridge (chb) inverter level shift pwm with rotation


Cascade h-bridge inverters and carrier-based level shift pulse width modulation techniques are presented for generating inverter stage switching control signals, in which carrier waveform levels are selectively shifted to control thd and to mitigate power distribution imbalances within multilevel inverter elements using either complementary carrier or complementary reference modulation techniques.. .
Rockwell Automation Technologies, Inc.


06/18/15
20150171763 

Power conversion device


A power conversion device includes a half bridge type inverter circuit that includes semiconductor elements, and a dc capacitor and that is connected to a positive side bus of the ac power supply, a smoothing capacitor, a semiconductor element that is connected between the semiconductor element and a positive side of the smoothing capacitor, and a semiconductor element that is connected between the semiconductor element and a negative side of the smoothing capacitor, in which turning-on and turning-off of the semiconductor element are controlled so that a dc voltage of the dc capacitor tracks a target voltage, and turning-on and turning-off of the semiconductor elements are controlled so that a dc voltage of the smoothing capacitor tracks a target voltage and thus an input power factor from the ac power supply is adjusted.. .
Mitsubishi Electric Corporation


06/18/15
20150171733 

Method and bypassing cascaded h-bridge (chb) power cells and power sub cell for multilevel inverter


Multilevel power converters, power cells and methods are presented for selectively bypassing a power stage of a multilevel inverter circuit, in which a single relay or contactor includes one or more normally closed output control contacts coupled between a given power cell switching circuit and the given power cell output, along with a normally open bypass contact coupled across the power stage output, with a local or central controller energizing the coil of the relay or contactor of a given cell to bypass that cell.. .
Rockwell Automation Technologies, Inc.


06/18/15
20150171632 

Portable power supply and battery charger


A portable power source includes a housing and a battery receptacle supported by the housing. The battery receptacle is configured to receive a battery.
Milwaukee Electric Tool Corporation


06/11/15
20150163949 

Integrated microinverter housing for a pv ac module


Systems and devices relating to an integrated housing for microinverters. The housing has a cavity for housing the circuitry of the microinverter.

06/04/15
20150155816 

Vehicle-mounted motor driving control board


An object of the present invention is to achieve reductions in size and costs of a vehicle-mounted motor driving control board in a configuration which allows the redundancy of a power supply to be ensured. The vehicle-mounted motor driving control board is formed by one printed circuit board on which are formed two inverter driving circuits for driving two inverter circuits for three-phase motors, and a voltage step-up/step-down driving circuit for driving a voltage step-up/step-down circuit for supplying electric power to the inverter circuits.
Mitsubishi Electric Corporation


06/04/15
20150155804 

Motor driving device


A motor driving device includes an inverter circuit having switching elements; and a control device controlling the switching of the switching elements. The control device sets a carrier frequency to f1 when a two-phase modulation scheme is selected, and sets the carrier frequency to f0, which is half of the carrier frequency f1, when a three-phase modulation scheme is selected.
Denso Corporation


05/28/15
20150145587 

High frequency semiconductor switch circuit and high frequency radio system including same


A path switching fet and a shunt fet are separated from each other by a capacitor. The gates of the path switching fet and the shunt fet are controlled using an inverter circuit having a first internal power supply voltage (e.g., 2.5 v) as a power supply.
Panasonic Intellectual Property Management Co., Ltd.


05/21/15
20150137898 

Oscillator buffer and calibrating the same


A buffering circuit for buffering an oscillator signal. The buffering circuit includes a plurality of pmos and nmos transistor pairs connected in parallel, each pair having connected gate terminals and connected drain terminals forming an inverter circuit, each pair arranged for receiving via a direct coupling an oscillator signal at its gate terminal, and each pair further being connected with an additional pmos and nmos transistor.
Stichting Imec Nederland


05/21/15
20150137691 

Half-bridge inverter, electronic ballast and lighting device with the half-bridge inverter


The invention discloses a half-bridge inverter which includes first and second inverter input terminals for receiving a direct current (dc) voltage, first and second inverter switches, first and second drive circuits, and an inverter startup circuit. The first and second drive circuits are adapted to alternatively turn on and turn off the first and second inverter switches, which can convert the dc voltage to a high frequency alternating current (ac) voltage.
General Electric Company


05/14/15
20150131347 

Method for controlling an h-bridge inverter


The invention relates to a h-bridge inverter and a method for controlling a h-bridge converter. The h-bridge inverter (1) comprises first and second dc terminals (tdc1, tdc2), first and second ac terminals (tac1, tac2), a first switch (s1), a second switch (s2), a third switch (s3) and a fourth switch (s4).

05/07/15
20150124498 

Power conversion device


A power converter includes a first arm configured by connecting a diode to a switching element, a second arm configured by connecting a diode to another switching element, a third arm formed of a first bidirectional switch configured by connecting switch elements, and a fourth arm formed of a second bidirectional switch configured by connecting other switch elements. An inverter circuit is configured by connecting the first and second arms in series between terminals of a direct current power source circuit, by connecting the third arm between a terminal of an alternating current power source and an output terminal, and by connecting the fourth arm between the output terminal and another output terminal.
Fuji Electric Co., Ltd.


05/07/15
20150123723 

Redundant clock transistion tolerant latch circuit


Embodiments of a latch circuit and a method of operating a latch circuit are described. In one embodiment, a latch circuit includes an input terminal configured to receive an input data signal, a switching unit configured to control application of the input data signal, a first inverter circuit connected to the switching unit, where the first inverter circuit includes a first cross-coupled pair of inverters, and a second inverter circuit connected to the first inverter circuit through the switching unit.
Nxp B.v.


05/07/15
20150123716 

Semiconductor device


Provided is a semiconductor device exemplified by an inverter circuit and a shift register circuit, which is characterized by a reduced number of transistors. The semiconductor device includes a first transistor, a second transistor, and a capacitor.
Semiconductor Energy Laboratory Co., Ltd.


04/23/15
20150109047 

Complementary metal-oxide-semiconductor (cmos) inverter circuit device


There is provided a cmos inverter circuit device. The cmos inverter circuit device includes a delay circuit unit configured to generate different charge and discharge paths of each gate node of a pmos transistor and an nmos transistor respectively at the time that an input signal transitions between high and low levels.
Magnachip Semiconductor, Ltd.


04/16/15
20150102839 

Low power inverter circuit


A low power inverter circuit includes first and second transistors that receive an input signal at their gate terminals. The first and second transistors are connected by way of their source terminals to third and fourth transistors, respectively.
Freescale Semiconductor, Inc.


04/09/15
20150097470 

Inverter module


Provided is an inverter module for use in an inverter-integrated motor, the inverter module being arranged at an axial end portion of a motor, the inverter module including trapezoidal power modules, each of which has a single-phase inverter circuit mounted thereon, and includes an electrical connection terminal for a power supply arranged on a short side thereof and an electrical connection terminal for the motor arranged on a long side thereof. A plurality of the trapezoidal power modules are arranged in an annular pattern so that the long side of the each of the plurality of the trapezoidal power modules faces toward an outer periphery, to thereby construct a polyphase inverter circuit..
Nissan Motor Co., Ltd.


04/09/15
20150097438 

Multimode wireless power transmitters and related methods


A wireless power transmitter comprises a bridge inverter configured to receive a dc power signal and generate an ac power signal according to an operating frequency, a resonant tank configured to receive the ac power signal and generate an electromagnetic field responsive thereto, and control logic configured to cause the resonant tank to reconfigure and adjust its resonant frequency for a particular receiver type of a wireless power receiver with which a mutual inductance relationship is desired. A method comprises determining a receiver type for a wireless power receiver with which it is desired to establish a mutual inductance relationship for wireless power transfer, and generating a wireless power signal with a wireless power transmitter having an operating frequency and resonant tank that is adjusted for a particular receiver type..
Integrated Device Technology


04/02/15
20150092462 

Control circuit and control inverter circuit, and control circuit and control power conversion circuit


A control circuit controls the inverter circuit in one of the non-master-slave inverters connected in parallel in a power system. The control circuit includes: a target parameter controller for generating a compensation value for adjusting a target parameter to the target value; a cooperative correction value generator for generating a correction value for cooperating with another of the inverters; a pwm signal generator for generating a pwm signal based on a correction compensation value obtained by adding the correction value to the compensation value; a weighting unit for weighting the correction compensation value; and a communication unit for communicating with other inverters.
Daihen Corporation


04/02/15
20150091482 

Variable speed fan motor


A variable speed fan motor, including a variable speed motor body and a motor controller. The motor controller includes a microprocessor, an inverter circuit, a gear detection circuit, and a power supply.
Zhongshan Broad-ocean Motor Manufacturing Co., Ltd.


03/26/15
20150084570 

Motor control apparatus


A motor control apparatus controlling a driving of a motor having two pairs of winding sets is provided. The motor control apparatus includes a current command value calculation portion, a first system, a second system, and a temperature difference calculation portion.
Denso Corporation


03/26/15
20150084173 

Semiconductor device and manufacturing the same


There is provided a semiconductor device having a converter circuit, a brake circuit and an inverter circuit and manufacturable by a simplified manufacturing process. The semiconductor device has a plurality of die pads, igbts, diodes, freewheel diodes, an hvic and lvics mounted on the plurality of die pads, a plurality of leads, and an encapsulation resin body that covers these component parts.
Mitsubishi Electric Corporation


03/19/15
20150078096 

Level shift circuit and semiconductor device


A level shift circuit includes: a latch circuit (q5, q6, q7, q8) including first (q5, q7) and second (q6, q8) inverter circuits; a first input mos transistor (q1) operating in accordance with an input signal; a second input mos transistor (q2) operating in accordance with an inversion signal of the input signal; and a current-voltage control mos transistor (q9). The latch circuit (q5, q6, q7, q8) outputs a voltage having been converted from the input voltage in level.
Renesas Electronics Corporation


03/19/15
20150077182 

Apparatuses and methods for input buffer having combined output


Apparatuses and methods are disclosed, including an apparatus that includes a first differential amplifier to amplify a difference between an input signal and a reference signal, and a second differential amplifier to amplify the difference between the input signal and the reference signal. The apparatus may further include an inverter circuit to receive an output signal of the first differential amplifier and another inverter circuit to receive an output signal of the second differential amplifier.
Micron Technology, Inc.


03/19/15
20150077162 

Transistor, clocked inverter circuit, sequential circuit, and semiconductor device including sequential circuit


A transistor with excellent electrical characteristics (e.g., on-state current, field-effect mobility, or frequency characteristics) is provided. The transistor includes an oxide semiconductor layer including a channel formation region, a first gate electrode, a second gate electrode, a source electrode, and a drain electrode.
Semiconductor Energy Laboratory Co., Ltd.


03/19/15
20150075195 

Motor control device and air conditioner


A motor control device includes a pwm signal generation unit generating a signal pattern of two of three phases so that the pattern follows a rotor position, and a timing adjusting unit. The signal generation unit increases/decreases duty in both directions of lag side and lead side based on any phase of a carrier-wave period regarding a first phase.
Kabushiki Kaisha Toshiba


03/12/15
20150070955 

Electric power conversion apparatus


An electric power conversion apparatus includes a channel case in which a cooling water channel is formed; a double side cooling semiconductor module that has an upper and lower arms series circuit of an inverter circuit; a capacitor module; a direct current connector; and an alternate current connector. The semiconductor module includes first and second heat dissipation metals whose outer surfaces are heat dissipation surfaces, the upper and lower arms series circuit is disposed tightly between the first heat dissipation metal and the second heat dissipation metal, and the semiconductor module further includes a direct current positive terminal, a direct current negative terminal, and an alternate current terminal which protrude to outside.
Hitachi, Ltd.


03/12/15
20150069832 

Power conversion system for electric vehicles


A power conversion system including a dc main power supply for supplying a dc voltage, boosting circuits for performing a retrogression operation of boosting the dc voltage and comprising driving circuits, an inverter circuit for converting the dc voltage into an ac voltage, a motor/generator for receiving the ac voltage, and a control circuit for outputting a control signal to the driving circuits and stopping an operation of a faulty boosting circuit of the boosting circuits when one of the boosting circuits is faulty, for setting power control values depending on a number of remaining non-faulty boosting circuits of the boosting circuits, and for controlling the remaining non-faulty boosting circuits and the inverter circuit based on the power control values, wherein the inverter circuit and the boosting circuits perform a regeneration operation of supplying regeneration power to the dc main power supply, peripheral equipment, and/or a dc auxiliary power supply.. .
Samsung Sdi Co., Ltd.


03/05/15
20150061558 

Electric compressor


An electric compressor capable of discharging electric charges of a capacitor is provided. The electric compressor includes: a compressing unit; an electric motor for rotating the compressing unit; a driving circuit for driving the electric motor; a housing for accommodating the compressing unit and the electric motor; and an inverter cover for accommodating the driving circuit.
Kabushiki Kaisha Toyota Jidoshokki


03/05/15
20150061555 

Motor control apparatus


A motor control apparatus has an inverter circuit having a plurality of pairs of upper and lower arms provided so as to correspond to the number of phases, and switching elements provided on each of the upper arms and the lower arms of each phase that drive a motor on the basis of on or off operations of the respective switching elements, a single current detector that detects a current of the motor flowing through the inverter circuit, and a duty calculator that calculates duties of a pwm signals for turning the switching elements on or off on the basis of a deviation between a current value of the current detected by the current detector and a target current value.. .
Omron Automotive Electronics Co., Ltd.


03/05/15
20150061554 

Motor control apparatus


A motor control apparatus has an inverter circuit having a plurality of pairs of upper and lower arms provided so as to correspond to a number of phases, and switching elements provided on each of the upper arms and the lower arms of each phase that drive a motor on the basis of on or off operations of the respective switching elements, a single current detector that detects a current of the motor flowing through the inverter circuit, and a duty calculator that calculates duties of pwm signals for turning the switching elements on or off on the basis of a deviation between a current value of the current detected by the current detector and a target current value.. .
Omron Automotive Electronics Co., Ltd.


03/05/15
20150061421 

Electric compressor


An electric compressor includes: a compressing unit; an electric motor that rotates the compressing unit; and a driving circuit. The driving circuit includes a filter circuit, an inverter circuit that receives electric power from the power supply line via the filter circuit, and a circuit board on which the inverter circuit is disposed, and a base member (aluminum base) and that supports the circuit board.
Kabushiki Kaisha Toyota Jidoshokki


02/26/15
20150056086 

Electric compressor


An electric compressor includes a housing accommodating therein a compression mechanism and an electric motor which drives the compression mechanism through a rotating shaft thereof, and an inverter cover which is joined to the housing and accommodates therein an inverter circuit portion. The inverter circuit portion is supported by a base member which is mounted to the housing and includes electrolytic capacitors mounted to the base member in such an orientation that the longitudinal direction of the electrolytic capacitors intersect the axis of the rotating shaft and a capacitor holder for housing the electrolytic capacitors.
Kabushiki Kaisha Toyota Jidoshokki


02/12/15
20150043261 

Hollow cylindrical capacitor and inverter device


The hollow tubular capacitor includes one side electrode connecting portion having an inner peripheral tubular portion and one side surface portion, the other side electrode connecting portion having an outer peripheral tubular portion and the other side surface portion and an electrostatic capacitance portion having one side electrode plate, the other side electrode plate and a dielectric body, wherein the electrostatic capacitance portion is accommodated in an annular space formed at the inner peripheral tubular portion, the one side surface portion, the outer peripheral tubular portion and the other side surface portion in a high density to reduce inside inductance component. The inverter device is formed such that the hollow tubular capacitor and an annular inverter circuit portion having three-phase upper and lower arms are integrally arranged coaxially on the central axis line..
Aisin Seiki Kabushiki Kaisha


02/12/15
20150042252 

Motor controller


The motor controller includes: a current detection section that detects a current between a battery and an inverter circuit generating a voltage applied to a coil of a motor; an overload determination value output section that outputs an overload determination value used to determine whether or not the motor is overloaded; an overload determination section that compares a current value detected by the current detection section against the overload determination value, and that determines the motor to be overloaded in a case in which the current value detected by the current detection section is the overload determination value or greater; and a forced 500 rpm instruction section that controls the motor rotation speed to 500 rpm, this being a specific speed, in a case in which the overload determination section has determined the motor to be overloaded.. .
Asmo Co., Ltd.


02/12/15
20150042227 

Bi-level current configurable driver


A bi-level current configurable driver is provided. The driver includes a feedback circuit, a driver circuit providing a driver signal to a half bridge inverter, and a step-dim interface coupled to a first alternating current input line, a second alternating current input line, and a neutral line, providing voltage to the driver circuit.
Osram Sylvania Inc.


02/05/15
20150036403 

System and a power converter


In accordance with a preferred embodiment of the present invention, an inverter circuit includes a direct current (dc)-to-dc power converter configured to receive an input energy from a device via a first input terminal and a second input terminal, where the dc-to-dc power converter is configured to convert a first portion of the input energy to a dc energy. The inverter circuit also includes an inverter stage coupled to an output of the dc-to-dc power converter, and is connected to the first input terminal of the dc-to-dc power converter and the second input terminal of the dc-to-dc power converter, where the inverter stage is configured to convert a second portion of the input energy to a first output energy..
Infineon Technologies Austria Ag


02/05/15
20150035464 

Inverter device and power steering device


An inverter device includes a switch circuit configured by series-connecting two n-channel semiconductor switching elements in opposite directions so that the switch circuit makes or breaks electrical connection between a dc power supply and an inverter circuit and a control circuit carrying out a protecting operation in which when the control circuit output a control signal to control switching of the inverter circuit and an operating condition is met, the control circuit stops output of the control signal to turn off all switching elements configuring the inverter circuit and the switch circuit. In the protecting operation, the switch circuit is turned off after output of the control signal has been stopped..
Nsk Ltd.


01/29/15
20150028886 

Circuit arrangement for generating a test voltage, in particular for testing the insulation of installed cable


The invention relates to a circuit arrangement for generating a test voltage, in particular for testing electrical equipment, comprising an alternating voltage source or a voltage source having constant or essentially constant voltage and a circuit means connected to the voltage source for generating a preferably low-frequency alternating voltage u0. A power converter, preferably configured as a resonant converter, is connected to the alternating voltage source.
Baur Prüf- Und Messtechnik Gmbh


01/22/15
20150022974 

Power conversion apparatus and electric vehicle


The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area.. .
Hitachi, Ltd.


01/22/15
20150022125 

Electric tool


An electric tool for driving a tip tool, the electric tool includes: a removable battery; the brushless motor configured to generate a driving force for driving the tip tool; an inverter circuit configured to supply drive power from the removable battery to the brushless motor using a plurality of semiconductor switching elements; a controller configured to control the inverter circuit to control rotation of the brushless motor; a temperature detector configured to detect a temperature of the brushless motor or the semiconductor switching elements; and a voltage detector configured to detect a voltage of the battery. The brushless motor is driven such that a duty ratio of pwm drive signal for driving the semiconductor switching elements is determined based on relationship between the temperature detected by the temperature detector and the voltage detected by the voltage detector..
Hitachi Koki Co., Ltd.


01/15/15
20150015556 

All n-type transistor inverter circuit


This disclosure provides systems, methods and apparatus for an all n-type transistor inverter circuit. A circuit can include an input thin film transistor (tft), a pull-down tft, a discharge tft, a first pull-up tft, a second pull-up tft, and a floating capacitor.
Pixtronix, Inc.


01/15/15
20150015068 

Multi-port energy storage system and control method thereof


A multi-port energy storage system includes a bi-directional power conversion circuit, a dc-ac inverter circuit, an electric energy storage facility, a first ac port, a second ac port and an ac switch. The multi-port energy storage system controllably provides various classifications of power supply quality via the first ac port and the second ac port..
Ablerex Electronics Co., Ltd.


01/08/15
20150009731 

Multilevel inverter


The present disclosure proposes an input power of each unit power cell of a cascaded h-bridge inverter that is mutually insulated. To this end, the present disclosure includes a phase shift transformer configured to output a voltage of predetermined phase by receiving an ac input power having a fixed frequency, and a plurality of unit power cells serially-connected configured to output a voltage having a predetermined phase by receiving a voltage provided by the phase shift transformer, wherein the phase shift transformer is configured to include the number of phase shifts corresponding to the number of the plurality of unit power cells..
Lsis Co., Ltd.


01/01/15
20150003021 

Inverter module


An inverter module converts a dc current generated by a photovoltaic panel to an ac current. The inverter module includes a housing and a pcb.
Chicony Power Technology Co., Ltd.


01/01/15
20150002227 

Mmic power amplifier


A microwave integrated circuit includes a substrate and a power amplifier on the substrate. The power amplifier includes a power divider circuit having an input configured to receive an input rf signal, a base amplifier having an input coupled to a first output of the power divider circuit and a peaking amplifier having an input coupled to a second output of the power divider circuit and an output coupled to an output combining node.
Cree, Inc.


12/25/14
20140376319 

Delay circuit and semiconductor memory device


According to an embodiment, a load adjusting circuit adjusts the load of an inverter circuit based on a threshold voltage of a first conductive type transistor provided on the inverter circuit, and a driving force adjusting circuit adjusts the driving force of the inverter circuit based on the threshold voltage of the first conductive type transistor.. .
Kabushiki Kaisha Toshiba


12/25/14
20140376268 

Metal working power supply converter system and method


A power supply for welding, cutting and similar operations includes a dual two-switch forward converter. The converter has two inverter circuits coupled in parallel but controlled to provide output power in an interleaved fashion.
Illinois Tool Works Inc.


12/25/14
20140375378 

Efficiency for charge pumps with low supply voltages


A charge pump system uses a helper pump to use in generating a boosted clock signal to use for the stages capacitor of a charge pump and also for the gate clock of the stage. This can be particularly useful in applications with lower supply levels, where a the helper pump can be used to provide an amplitude higher than the supply level, that can then be added to the supply level for the boosted clock signal and then added again to the supply level for the gate clock.
Sandisk Technologies Inc.


12/25/14
20140374397 

Method and providing welding type power


A welding-type power supply includes a controller, a preregulator, a preregulator bus, and an output converter. The controller has a preregulator control output and an output converter control output.
Illinois Tool Works Inc.


12/18/14
20140369090 

Inverter apparatus


In an inverter apparatus, an output voltage of an active filter circuit that steps up and smoothes a dc voltage is converted into an ac voltage by an inverter circuit. The active filter circuit includes a capacitor and a rectifier device connected between an input node and an output node.
Murata Manufacturing Co., Ltd.


12/18/14
20140368120 

Ballast with anti-striation circuit


A ballast comprises an inverter circuit for providing an oscillating current signal for energizing the at least one lamp. The inverter circuit comprises a first switching component and a second switching component each having a collector terminal, a base terminal, and an emitter terminal.
Osram Sylvania Inc.


12/11/14
20140362607 

Magnetic integration double-ended converter


A magnetic integration double-ended converter with an integrated function of a transformer and an inductor includes an integrated magnetic member having a magnetic core with three magnetic columns having at least three windings (np, ns1, ns2) and at least one energy storage air gap, where a primary winding (np) and a first secondary winding (ns1) are both wound around a first magnetic column or are both wound around a second magnetic column and a third magnetic column, and a second secondary winding (ns2) is wound around the second magnetic column; an inverter circuit with double ends symmetrically working, acting on the primary winding (np); and a group of synchronous rectifiers (sr1, sr2), gate electrode driving signals of which and gate electrode driving signals of a group of power switch diodes (s1, s2) of the inverter circuit with the double ends symmetrically working complement each other.. .

12/04/14
20140358138 

Gain compensation for a full bridge inverter


An electrosurgical generator and related systems and methods using a gain-compensated full bridge topology. Gain nonlinearity is corrected by applying impedance and phase correction factors to a control loop to achieve a linear gain structure.

12/04/14
20140354074 

Power feed device of inductive charging device


A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an ac power supply to dc, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an ac signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the ac signal to a power receiving device, and a control circuit which modulates a duty factor of each of the switching elements of the inverter circuit in synchronization with the ac power supply, wherein the control circuit controls the plurality of switching elements so that an increment of the modulated duty factor is not equal to a decrement of the modulated duty factor.. .

12/04/14
20140354073 

Power feed device of inductive charging device


A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an ac power supply to dc, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an ac signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the ac signal to a power receiving device, and a control circuit which modulates at least one of a duty factor or an operation frequency of each of the switching elements of the inverter circuit in synchronization with the ac power supply.. .

11/27/14
20140347115 

Voltage level translator


A voltage level translator includes an inverter circuit configured to switch an output of the inverter circuit between a first voltage level and a second voltage level. The voltage level translator also includes a capacitor connected to the output of the inverter circuit.

11/27/14
20140347067 

Fault detection device for inverter system


To provide a fault detection device for an inverter system, that detects a fault in the inverter system including an inverter circuit 2 that converts dc power into ac power and a motor 5 driven thereby. When a driving start signal sig1 of the inverter circuit 2 is input, a test voltage applying unit 20 applies a predetermined first test voltage to a current measuring unit 10 that measures current flowing in the inverter circuit 2, and it is determined whether the current measuring unit 10 has failed, based on the first test voltage.

11/27/14
20140346884 

Power converter


A power converter that can supply constant voltage to a load even upon fluctuation of voltage of an ac power source includes an inverter circuit resulting from connecting switching elements in series, the inverter circuit being connected to both ends of a dc power source series circuit resulting from connecting in series two dc power sources; an ac output terminal that is connected to a connection point of the switching elements; another ac output terminal that is connected to a connection point of the dc power sources; and a bidirectional switch element including one end connected to the ac output terminal u and another end connected to a terminal of an ac power source.. .

11/27/14
20140346877 

Power converter


A power converter can include an inverter including, connected in series, switching elements, the inverter circuit being connected to both ends of a dc power source series circuit resulting from connecting in series a dc power source and a dc power source. Also included can be an ac output terminal that is connected to a connection point of the switching element and the switching element, an ac output terminal that is connected to a connection point of the dc power source and the dc power source, a bidirectional switch element one end of which is connected to the ac output terminal and the other end of which is connected to a terminal of an ac power source and a bidirectional switch element one end of which is connected to the ac output terminal and the other end of which is connected to the ac power source..

11/27/14
20140346861 

Vehicle auxiliary power supply device and overcurrent protection method thereof


A vehicle auxiliary power supply device includes a resonant inverter circuit that converts dc input into a desired ac voltage and outputs the ac voltage and a control unit. The control unit includes a resonance-time managing unit managing resonance time of current flowing in the resonant inverter circuit, a gate-off-command generating unit detecting overcurrent flowing in the resonant inverter circuit based on detected current of a current detector, and, when the overcurrent is detected, generating, based on detected current of the current detector and resonance time managed by the resonance-time managing unit, a gate-off command to turn off switching elements included in the resonant inverter circuit after the elapse of time after which current flowing in the switching elements becomes zero for the first time, and a gate-signal generating unit generating a gate signal that controls the switching elements to be turned off when the gate-off command is input..

11/20/14
20140339996 

Ballast and ballast control method and apparatus, for example anti-arcing control for electronic ballast


A technique for providing control for an electronic ballast by responding to the current in the common bus (dc power rail) betweeen a boost circuit such as a power factor circuit (pfc) and an output (such as a high frequency (hf) inverter) circuit, and adjusting, changing or shutting down either the power factor control circuit or the inverter circuit when the power going into the inverter circuit is above a threshold. Power going into the inverter circuit may be measured by a resistor, and temperature compensation may be provided.

11/13/14
20140333219 

Led lighting unit with color and dimming control


Method and apparatus for a led lighting unit (200), including an inverter circuit (210) electrically coupled to a led module (220) having a pair of antiparallel led groupings. The inverter circuit (210) provides for color and/or dimming control of the led module (220).

11/06/14
20140328102 

Power source inverter for use with a photovoltaic solar panel


An improved topology is presented for a single phase power source inverter that is designed to minimize double frequency ripple. The inverter circuit includes: a capacitor coupled in parallel across a direct current (dc) voltage source; a bridge circuit having three legs electrically connected in parallel with the voltage source and each other, such that each leg of the bridge circuit being comprised of two switches coupled in series with each other; a low pass filter electrically connected between the bridge circuit and a load; an auxiliary inductor having a first terminal electrically connected to one leg of the bridge circuit and a second terminal electrically connected to another leg of the bridge circuit and the load; and a controller that drives the switches of the bridge circuit in a manner that maintains instantaneous power transfer across the bridge circuit constant..

10/30/14
20140321180 

Inverter circuit, power converter circuit, and electric vehicle


An object is to reduce, with the control circuit of the full-bridge inverter circuit, distortions in an output signal of the inverter circuit resulting from an error in control of the switching of the high-side transistors and low-side transistors included in the first half-bridge circuit and the second half-bridge circuit. The pulse width of a signal that controls on/off of the high-side transistors and low-side transistors included in the first half-bridge circuit and the second half-bridge circuit is reduced, i.e., the duty cycle of the signal is reduced.



Popular terms: [SEARCH]



Follow us on Twitter
twitter icon@FreshPatents

###

This listing is a sample listing of patent applications related to Inverter 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 Inverter with additional patents listed. Browse our RSS directory or Search for other possible listings.


0.5753

5298

2 - 1 - 102