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8937817 Lossless commutation during operation of a power converter  
A method for operating a DC-DC converter. The method comprises: matching, based on a turns ratio of a transformer of the DC-DC converter, a primary side capacitance of the DC-DC converter and a...
8937827 Method and system for extracting electric power from a renewable power source  
The plant comprises: a DC-voltage electric power source (3), whose operating conditions vary as a function of at least one uncontrollable quantity, for each value of the uncontrollable quantity...
8937464 High voltage generation system and method employing a charge pump and producing discrete voltage values  
Voltage regulation in charge pumps. A high voltage generation system includes a charge pump having an output voltage node and a regulated input voltage node. The high voltage generation system...
8937825 Timing controlled AC to DC converter  
A timing controlled converter for converting a time varying input signal to a regulated DC output voltage for application to a load circuit. A feedback loop is employed as a control means for...
8937823 Circuit and method for protecting a controllable power switch  
A circuit for protecting a controllable power switch is provided. The controllable power switch has a first power switch terminal connected to a first terminal, a second power switch terminal...
8937821 DC power supply apparatus  
A DC power supply apparatus comprising: a rectifying circuit including, a first rectifying portion, a second rectifying portion, a third rectifying portion and a fourth rectifying portion; a...
8937819 Integrated control circuit of setting brown-in voltage and compensating output power and method for operating the same  
An integrated control circuit of setting brown-in voltage and compensating output power and a method for operating the same are disclosed. The integrated control circuit is applied to a power...
8937818 Low-volume programmable-output PFC rectifier with dynamic efficiency and transient response optimization  
The present invention is a system, apparatus and method of a PFC rectifier having a programmable output voltage that does not incur a drastic penalty in the overall size or volume of the device,...
8937826 Power converter apparatus  
A power converter apparatus for driving an electronic load is disclosed. The power converter apparatus includes a rectifier module, an active switch unit, a driving module, an input voltage...
8937447 Methods and systems for controlling a boost converter  
Methods and apparatus are provided for controlling a boost converter. In one embodiment, the method includes processing an input current command through a plurality of prioritized limiting...
8937463 Common-core power factor correction resonant converter  
A common-core power factor correction resonant converter includes an energy-transforming circuit. The energy-transforming circuit receives an input line voltage and generates an output power. The...
8937471 Discharging circuit and power supply  
A discharging circuit includes a filter unit connected between the input lines of a commercial AC power supply, a switch whose operations are controlled by the filter unit; and a discharging unit...
8937796 Variable frequency drive and methods for filter capacitor fault detection  
Variable frequency motor drives and control techniques are presented in which filter capacitor faults are detected by measuring filter neutral node currents and/or voltages and detecting changes...
8937820 Switched-mode power supply apparatus and method  
The present invention relates to a switched-mode power supply apparatus and a corresponding method. For an effective compensation of non-linearities caused by dead-time and voltage drops in the...
8937450 Motor driving system and motor system  
A motor driving system including command value output means configured to output an analog value according to a rotation speed command; a first power line having first switching means; a drive...
8938635 Host detection circuit powered from primary side of the alternating current adaptor for detecting changes to a power level pulse of an information handling system  
A method for managing an alternating current adaptor system is disclosed. A direct current voltage is received at a high impedance power delivery network from a primary side of an alternating...
8934277 Semiconductor system with at least one three-level electric power inverter circuit  
In some aspects of the invention, multiple insulating substrates each mounting thereon at least one each of at least four semiconductor devices that form at least one of three-level electric power...
8934272 Ultrasonic image display apparatus power circuit and ultrasonic image display apparatus  
An ultrasonic image display apparatus power circuit is provided. The power circuit includes a high-voltage fixed power supply portion configured to boost a voltage of a low-voltage power supply...
8933785 Power conversion system and communication address setting method  
There is provided a power conversion system, and a photovoltaic inverter includes a communication unit that broadcast-transmits a setting request signal of a predetermined communication address....
8933591 Activatable and deactivatable supply unit for an electronic apparatus  
A supply unit for an electronic apparatus that can be activated and deactivated has a mains adapter, a first voltage regulator and a voltage source that are connected on the input side with the...
8934274 Power conversion apparatus  
A current flowing into one of half-bridge circuits of a power semiconductor module is detected by corresponding ones of current detection circuits through a current detection terminal provided in...
8934270 Control circuit and method for converters of wind turbines  
Controlling a converter of a wind turbine is disclosed. The converter is connected to a rotor of a doubly fed asynchronous generator in order to feed electrical energy into an electric network....
8934266 Adaptive slope compensation programmable by input voltage of power converter  
A method for controlling a power converter is provided. The method includes the following steps. A switching signal coupled to switch a transformer for regulating the output of the power converter...
8934271 Startup circuit, switching power source IC, and switching power source apparatus  
A startup circuit includes a MOSFET that is connected between a startup power source and an auxiliary power source made of a smoothing capacitor and passes a startup current from the startup power...
8934275 Switching loss reduction in converter modules  
The invention relates to converters for converting a DC input voltage a DC or an AC output voltage. The converters have a parasitic inductance. The converters comprise at least one switching...
8934267 Loosely regulated feedback control for high efficiency isolated DC-DC converters  
The improved DC-DC converter apparatus includes a primary side circuit and a secondary side circuit that is galvanically isolated from the primary. The primary side induces a voltage in the...
8934265 DC-DC converter  
Provided is a vehicle which enables a highly-efficient DC-DC converter and a highly-efficient power supply to a load, regardless of a power supply amount of to the load. When the power supply...
8934269 Solar photovoltaic power conditioning units  
We describe a photovoltaic power conditioning unit comprising: both dc and ac power inputs; a dc link; at least one dc-to-dc converter coupled between dc input and dc link; and a dc-to-ac...
8934273 Switching power supply including power factor correction circuit with polarity determination control  
The present invention relates to a PFC switching power supply which can perform polarity determination and voltage detection of AC voltage without using a DC isolator such as a transformer....
8934268 Power electronic converter for use in high voltage direct current power transmission  
A power electronic converter for use in high voltage direct current power transmission and reactive power compensation which includes at least one converter limb including first and second DC...
8933675 Two-inductor based AC-DC offline power converter with high efficiency  
Embodiments disclosed herein describe the use of two inductors in a non-isolated power converter. The power converter receives power from a non-regulated power source, and converts the received...
8934276 DC-link voltage balancing control for multilevel inverters  
A method for balancing a voltage of an inverter determines an expected voltage of a capacitor based on a voltage of the capacitor at a start of a switching cycle and determines a duty cycle...
8933637 AC/DC power converter  
In one embodiment, an AC/DC power converter can include: a rectifier bridge and a filter capacitor for converting an external AC voltage to a half-sinusoid DC input voltage; a first storage...
8933674 Switch controller, switch control method, and power supply device comprising the switch controller  
The present invention relates to a switch controller, a switch control method, and a power supply including the switch controller. An exemplary embodiment of the present invention detects an...
8929110 Pulse width modulation controller architectures  
Systems, apparatuses, and techniques for pulse width modulation (PWM) are described. A described system includes a circuit that contains an inductor and a transistor that controls current through...
8929098 DC-DC converter  
A controller controls a voltage-source power converter and a current-source power converter based on a detection value of a rail voltage input to the voltage-source power converter and a detection...
8929099 Bi-directional DC/DC converter and battery testing apparatus with converter  
A bi-directional DC/DC converter includes at least one module having a module input for providing a bi-directional module input current, and a module output with an output inductor for providing a...
8929100 Power converter enabling suppression of magnetic flux bias in a transformer of the converter  
In an electrical power converter, an input circuit performs switching for converting a supply voltage of a power source to alternating-polarity voltage pulses which are applied to the primary...
8929101 DC to DC converting circuit  
The invention provides a DC to DC converting circuit, comprising: a transforming unit with a primary winding and a secondary winding; a bridge rectifier unit coupled to an input voltage, having a...
8929109 Double-output half-bridge LLC serial resonant converter  
The present invention relates to a double-output half-bridge LLC serial resonant converter, comprising: a half-bridge rectifying unit, a first resonant unit, a first transformer unit, a first...
8928363 Semiconductor drive circuit and power conversion apparatus using same  
The dead time is secured stably in a semiconductor drive circuit for switching devices using a wide band gap semiconductor. The drain terminal of the switching device of an upper arm is connected...
8929103 Integrated magnetics with isolated drive circuit  
A switch-mode power converter includes a power isolation transformer and a drive transformer having their various windings collectively wound on a magnetic core having a center leg and outer legs....
8929113 Capacitor discharger for power conversion system  
A capacitor discharger applied to a power conversion system including a DC voltage source, a power conversion circuit having a pair of input terminals via which the DC voltage source is...
8929107 Active surge protection in a power supply  
A surge protection module is disclosed. An example surge protection module includes a first terminal coupled to a first output terminal of a rectifier of a power supply. A second terminal is...
8929108 Method and apparatus for controlling a grid-connected converter  
A method and an apparatus for controlling a grid-connected converter which includes a boost converter, a buck converter, and a current source inverter having an output CL filter. An input of the...
8929102 Sample and hold buffer  
This relates to sampling a feedback signal representative of an output of a power converter. The sampling is performed using a buffer sampling circuit having three sample and hold stages coupled...
8929114 Three-level active neutral point clamped zero voltage switching converter  
A main circuit of a three-level active neutral point clamped voltage source converter having a pair of additional main switches provides two paths between an output node and a neutral point in...
8929106 Monotonic pre-bias start-up of a DC-DC converter  
The power conversion module includes a power converter coupled to provide a DC output voltage from an input voltage source. The power converter may have primary and secondary stages, and the power...
8929111 System and method for common-mode elimination in a multi-level converter  
A multi-level converter includes a plurality of alternating current (AC) terminals connected to an AC source or load, at least three direct current (DC) terminals connected to a multi-level DC...
8928260 Traction motor retarding flux reference  
A traction motor system calculates motor flux by generating a real time effective resistance of a resistance grid calculated from motor torque and measured voltage on a DC link. Calculating...