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8976547 Switching mode power supply with synchronous rectifying control circuit  
A switching mode power supply comprising a synchronous rectifying control circuit. The synchronous rectifying control circuit comprising an integrating circuit, a first comparison circuit and a...
8976557 Reactive energy compensator comprising N parallel inverters, N capacitor banks, and means for connecting the banks through passive electrical components  
A reactive energy compensator is provided. The compensator is connected to an alternating electrical network including M phase(s), M being an integer greater than or equal to 1. The compensator...
8975847 Power conversion device  
A power conversion device includes a first capacitor connected in parallel to a direct-current power supply, plural power converters that drive plural synchronous machines, a second capacitor...
8976548 Method and apparatus for AC-to-DC power conversion  
In one aspect, the present invention reduces electromagnetic interference (EMI) caused by a capacitive dropper power supply by synchronizing the openings and closings of a shunt switched used for...
8976552 Power supply with integrated linear high voltage multiplier and capacitors therefor  
A high voltage power supply for use in small diameter spaces such as in oil well logging devices includes an AC voltage source which provides an AC voltage to a voltage multiplier circuit that...
8976560 Inverter control device and inverter control method  
An inverter control device includes a voltage detector, a target value calculation section, an inverter control section, an abnormality detector and a voltage clamp unit. The target value...
8976526 Providing a cooling system for a medium voltage drive system  
In an embodiment, a medium voltage drive system includes a transformer, multiple power cubes each coupled to the transformer, and a manifold assembly. Each power cube includes cold plates each...
8976561 Switch mode power converters using magnetically coupled galvanically isolated lead frame communication  
An integrated circuit package for use in a switch mode power converter comprises an encapsulation and a lead frame. A portion of the lead frame is disposed within the encapsulation. The lead frame...
8976546 Control integrated circuit of a switch power supply and a switch power supply using the same  
A control integrated circuit for controlling a switch power supply, including: a voltage collecting module, configured to collect a feedback voltage based on an output voltage of the switch power...
8971071 Driver circuit and inverter circuit  
The present invention provides a safe circuit that can prevent an arm short, when a half-bridge circuit is configured by using a normally-on switching element, and the half-bridge circuit is used...
8971076 Power factor correction circuit  
A first error amplification circuit amplifies a difference between a predetermined reference voltage and a first detection voltage that corresponds to the output voltage of a DC/DC converter, so...
8971060 Method and apparatus for controlling a switching mode power supply during transition of load conditions to minimize instability  
A controller for a switched mode power supply (SMPS) is provided. The SMPS is equipped with a transformer having a primary side winding, a secondary winding, and an auxiliary winding. The...
8971082 Power conditioning unit with voltage converters  
A power conditioning unit for delivering power from a power source to a mains utility supply, the power conditioning unit comprising a plurality of input terminals for connecting to the power...
8971073 System and method for providing a high efficiency bypass circuit for multi-stage DC-DC converters used in battery powered systems  
A system and method are disclosed for providing a high efficiency bypass circuit for multi-stage direct current to direct current (DC-DC) converters used in battery powered systems. When the...
8970063 Method and arrangement for balancing voltages of series connection of storage units for electrical energy  
An arrangement which includes two or more energy storage units for electrical energy connected in series, and two or more balancing resistor units. Each balancing resistor unit is connected in...
8971078 DC/AC inverter switch controller  
An inverter according to an embodiment of the present disclosure may include a converter having a switch, configured to convert a DC voltage into a half-wave rectified sine waveform voltage; a...
8971044 Semiconductor device  
A semiconductor device includes: a first output unit configured to output a first phase; a second output unit configured to output a second phase different from the first phase, the second output...
8971070 Interface arrangement between AC and DC systems for reliable opening of the circuit breaker in time  
An interface arrangement for coupling between an AC system and a DC system. The arrangement includes a converter for conversion between AC and DC and having a DC side with a first and a second...
8971061 Off time control method for switching regulator  
The present invention provides an off time control method and switching regulator using it. The current flowing through a switch is compared with a current threshold, and the switch is turned off...
8971069 Startup circuit and input capacitor balancing circuit  
In one embodiment, an input capacitor balancing circuit for a power supply is provided. The circuit includes an input capacitance operable to filter input power for the power supply. The input...
8971077 Power supply circuit, mobile terminals using the same, and control method of the same  
A power supply circuit includes: a first switch and a second switch that are connected in series between an input voltage terminal and a reference power supply; a controller that controls the...
8971058 High-efficiency high step-up ratio direct current converter with interleaved soft-switching mechanism  
A high-efficiency high step-up ratio direct current converter with an interleaved soft-switching mechanism is provided. The direct current converter includes a voltage-multiplier circuit and an...
8971041 Coldplate for use with an inverter in an electric vehicle (EV) or a hybrid-electric vehicle (HEV)  
A coldplate for use with an inverter in an electric vehicle (EV) or a hybrid-electric vehicle (HEV). The inverter includes a direct current (DC) link capacitor comprising multiple film capacitors...
8971080 Circuit arrangement with a rectifier circuit  
A circuit arrangement includes a rectifier circuit having a first and a second load terminal, a first semiconductor device having a load path and a control terminal and a plurality of n, with n>1,...
8971064 Electricity generating installation provided with means for storage of energy and control process for an installation of this type  
An electricity generating installation includes an electricity generation unit of a gas turbine, steam turbine or combined-cycle type, wherein the electricity generation unit is coupled to a...
8971074 Bias supply, a power supply and a method of using bias supply voltage levels to signal information across an isolation barrier  
A bias supply, a method of communicating data across an isolation barrier and a power supply are provided herein. In one embodiment, the bias supply includes: (1) a bias supply transformer having...
8971067 Output current distortion compensating apparatus in inverter  
An output current distortion compensating apparatus in an inverter is disclosed, the inverter including an inverter controller generating a PWM signal for controlling a PWM voltage generator,...
8971057 Bidirectional energy converter with controllable filter stage  
The invention provides a bidirectional converter that operates under an AC generation mode or a charge mode. The bidirectional converter may be a single component or circuit, which may include a...
8971065 System for providing an alternating current, and control apparatus and method thereof  
A system for providing, from a direct current (DC) voltage source, an alternating current (AC) to an electrical grid outputting a grid voltage, the system including: a transformer for coupling to...
8970058 Wind power generation system, wind power generation control device and wind power generation control method  
For reducing a storage capacity of a storage battery system and an installation cost at a constant-output control type of wind power plant, a wind power generation control device sets as a planned...
8971081 High voltage inverter device for delivering a high-power AC high voltage  
The high voltage inverter device receives, as an input voltage, a DC voltage or a voltage within Safety Extra Low Voltage composed of a DC component with a pulsating flow superposed thereon. The...
8971066 Harmonic current suppression method and harmonic current suppression device of power conversion device  
A current control unit takes a deviation between a current command value and a current flowing through an inverter of a power conversion device, and controls the inverter based on the deviation. A...
8971079 Inverter device  
An inverter device includes an inverter circuit, a control circuit, a first drive circuit, a second drive circuit, first and second photocouplers, and a signal switching part. The signal switching...
8971038 Coldplate for use in an electric vehicle (EV) or a hybrid-electric vehicle (HEV)  
A coldplate for use with electronic components in an electric vehicle (EV) or a hybrid-electric vehicle (HEV). The coldplate includes a main portion having multiple raised features on a surface...
8971062 Systems and methods for constant voltage mode and constant current mode in flyback power converters with primary-side sensing and regulation  
System and method for regulating a power converter. The system includes a first signal generator configured to receive at least an input signal and generate at least a first output signal...
8971063 Grid tied inverter, system and method including a buck-boost mode  
A grid tied inverter connectable to an electricity grid, the grid tied inverter comprising a DC to DC current fed push-pull converter operable to generate a current waveform from a DC voltage...
8970118 LED lighting tube  
The LED lighting tube compatible with an electronic ballast has two snubber circuits, a waveform conversion circuit, and at least one LED light string. The snubber circuits are connected to...
8971059 Resonant converting circuit and resonant controller  
A current detecting circuit detects a resonant current in a primary side of a resonant converting circuit to generate a current detecting signal. An output detecting circuit generates a feedback...
8971068 Three-phase rectification module, the system thereof and harmonic suppression method  
A three-phase rectification module, the system thereof and harmonic suppression method are provided. The module includes an LCL filter unit, a Vienna rectifier coupled to the LCL filter unit, and...
8971083 Recreational vehicle transformer  
A transformer for connecting a 50 A RV normally wired for 110 volts of electricity to foreign receptacles providing 220 volts of electricity. The transformer employs two cords on the input side of...
8971075 Method and apparatus for generating an adaptive switching frequency for operating power factor correction circuit  
A method of operating a power factor correction (PFC) circuit and a corresponding power factor correction circuit include determining an adaptive switching frequency of the PFC circuit related to...
8971072 Electromagnetic connector for an industrial control system  
An electromagnetic connector is disclosed that is configured to form a first magnetic circuit portion comprising a first core member and a first coil disposed of the first core member. The...
8964417 Power controllers and control methods suitable for operating a switched mode power supply in quasi-resonant mode  
The disclosure provides a power controller and related control method for a switch mode power supply operating in a quasi-resonant mode. The switched mode power supply has a power switch and an...
8965720 Efficiency monitor for inductive power transmission  
An efficiency monitor for monitoring the efficiency of power transmission by an inductive power outlet. The efficiency monitor includes an input power monitor, for measuring the input power...
8964431 Power conversion system  
A power conversion system includes n (n being an integer of 2 or more) power conversion devices (P1 to P4) connected in parallel to a load (4); and a communication line (2) connected to the n...
8964423 Low weight 3-phase 5-output wire power conversion system for micro-grid  
A power conversion system eliminates output transformers and replaces them with a zig-zag transformer and a filter that provides a 3-phase 5-wire system with significantly reduced weight and size...
8963527 EMI mitigation of power converters by modulation of switch control signals  
The present invention provides for EMI mitigation in switching circuitry, such as power converters, by implementing a controlled, non-random change in frequency in every cycle of switch control...
8964437 Energy dissipating device for DC power supplies  
An energy dissipating device configured to connect to a power supply and to dissipate excess energy from a direct current (DC) rail in response to a change in power supply settings or operating...
8964436 Self-starting transistor-only full-wave rectifier for on-chip AC-DC conversion  
A transistor-based full-wave bridge rectifier is suitable for low A.C. input voltages such as received by a Radio-Frequency Identification (RFID) device. Voltage drops due to bridge diodes are...
8964412 Split current mirror line sensing  
Apparatus and methods for filtering the transients of an input signal of an integrated circuit while maintaining a constant voltage at an input terminal of the integrated circuit are disclosed. In...