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Patent # Description
US-9,537,432 Power-off brake circuit for DC fan
The present invention relates to a power-off brake circuit for a DC fan, which comprises a control unit, a motor driver unit, a switch unit, a power-off...
US-9,537,431 Brake diagnosis device and brake diagnosis method
This disclosure discloses a brake diagnosis device configured to diagnose a brake of a motor with a brake. The brake diagnosis device includes a brake control...
US-9,537,430 Clamp with burls-electrode
Holding apparatus (100) for electrostatically holding component (1), (e.g., a silicon wafer), includes base body (10) composed of first and second plates...
US-9,537,429 Ultrasonic motor and lens apparatus including the same
Provided is an ultrasonic motor, comprising: a vibrator including a piezoelectric element and a contact surface to be brought into contact with a member to be...
US-9,537,428 Combined power transmission and heating systems and method of operating the same
A combined direct current DC power transmission and heating system is provided. The system includes a rectifier station configured to generate a DC link...
US-9,537,427 Pulse-width modulation control of paralleled inverters
A system includes a paralleled inverter circuit and a controller. The paralleled inverter circuit includes a first inverter and a second inverter. The...
US-9,537,426 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...
US-9,537,425 Multilevel inverters and their components
A multilevel inverter includes a first half bridge in series with a second half bridge, each comprising a switch having a channel. The switch is configured to...
US-9,537,424 DC-bus controller for grid-connected DC/AC converters
Systems, methods, and devices for controlling a DC-bus voltage for a power conditioning system. A control system regulates the DC value of the DC-bus voltage....
US-9,537,423 Power conversion system
A power conversion system includes a filter unit, a DC/DC converter, a DC link, an inverter, a control unit, and a traction motor. The DC/DC converter is used...
US-9,537,422 High-frequency power supply apparatus for supplying high-frequency power
A high-frequency power supply apparatus for supplying high-frequency power to a load the impedance of which greatly fluctuates is provided, wherein a stable...
US-9,537,421 Multilevel converter
A power converter includes at least one leg having a first string operatively coupled to a second string via a first connecting node and a second connecting...
US-9,537,420 Method and apparatus for power module output power regulation
A method and apparatus for modifying power produced by a power converter. In one embodiment, the method comprises comparing a line voltage level to a first...
US-9,537,419 Power supply system and image forming apparatus having the same
A power supply system includes: a switching power supply configured to rectify and smooth an AC voltage of an AC power supply to generate a predetermined DC...
US-9,537,418 Power conversion apparatus and control chip thereof
A power conversion apparatus is provided. The power conversion apparatus receives an AC input power by an input side and includes a capacitor, an AC-to-DC...
US-9,537,417 Power supply control circuit and power source cut-off detection method
A power supply control circuit arranged to prevent a steady power loss from occurring in an input filter connected to an alternating current power source. In...
US-9,537,416 System and method for operating power converters
An electrical circuit for a power converter includes a first switching device proximate an AC source. The circuit also includes a voltage measurement device...
US-9,537,415 Power generating device, control device, controlling method and power generation system
A power generating device is provided, which includes a matrix converter device, a power transmission path for transmitting electric power between the matrix...
US-9,537,414 Power conversion apparatus that switches electrode connection when a short-circuit is detected
A full-bridge circuit has serial first arms and serial second arms. Another full-bridge circuit has serial third arms and serial fourth arms. Primary and...
US-9,537,413 System for driving a piezoelectric load and method of making same
A driver system comprises a direct current (DC) voltage source and a first bi-directional DC-to-DC converter having a primary side coupled to the DC voltage...
US-9,537,412 Direct current voltage conversion device and clamping circuit
A direct current voltage conversion device includes a direct current to alternating current converter, a transformer, a first converter switch, a second...
US-9,537,411 Flyback active clamping power converter
A flyback active clamping power converter is disclosed. The flyback active clamping power converter comprises an input inductor, a down-bridge switch, an...
US-9,537,410 System and method for series connecting electronic power devices
A system and method for series connecting electronic power devices are disclosed. In one embodiment, a switching device system includes a first upper arm...
US-9,537,409 Method of feedback commanding a monophase resonant converter, a related monophase resonant converter and a...
A resonant converter includes a primary switching circuit having a primary winding and a primary switching stage configured to drive the primary winding; a...
US-9,537,408 Power conversion with controlled phase difference and duty ratio
A power conversion method of a power conversion apparatus including plural primary side ports disposed in a primary side circuit and a secondary side port...
US-9,537,407 Power supply with standby operation
A power supply includes a power conversion circuit configured to selectively operate in one of an active mode in which output power is supplied to a load and a...
US-9,537,406 Flyback controller featuring bidirectional power control and parallelly-connected power modules
A flyback controller featuring bidirectional power control and parallelly-connected power modules is based on flyback DC-DC converters for allowing...
US-9,537,405 Power converter with power foldback
A controller for use in a power converter includes a drive circuit coupled to control switching of a power switch of the power converter to regulate the output...
US-9,537,404 AC-DC power supply input voltage detection and monitoring
A power converter includes a transformer with a primary and a secondary winding and a switch. A controller of the power converter at the primary winding side of...
US-9,537,403 Control circuit for a switched-mode power supply
A control circuit for a switched-mode power supply having an input side (101) connectable to an electrical power source and an output side (102) connectable to...
US-9,537,402 Electric power converter
An electric power converter is equipped with a master converter and a slave converter that are connected in parallel with each other, and to a load. The master...
US-9,537,401 Push-pull converter and modulation method for controlling a push-pull converter
A push-pull converter including a primary-side input converter circuit with a plurality of primary-side switching devices in a full-bridge circuit including a...
US-9,537,400 Switching converter with dead time between switching of switches
A device and method for operating a switching power converter are disclosed. In an embodiment a circuit includes a switching power converter having a half...
US-9,537,399 Direct current control with low E-M emission
A switching control circuit includes driving a flow of direct current through an at least partially inductive load. The switching control circuit is adapted for...
US-9,537,398 Voltage generating circuit and regulator circuit for precisely control predetermined high voltage
A high voltage generating circuit includes a charge pump circuit and an output voltage control circuit. The charge pump circuit raises a voltage to a high...
US-9,537,397 Converter
A converter having an inductor, a first switch, a second switch, a third switch, and a fourth switch connected between the other ends of the inductor and the...
US-9,537,396 Power switch control by adjusting the base current of a bipolar transistor
The present document relates to Direct Current (DC) to DC power converters. In particular, the present document relates to DC to DC power converters which...
US-9,537,395 Switched mode power supply peak-efficiency detection
A peak efficiency detection system may include a switched power supply (SPS) module providing an output supply signal. The SPS module may have an internal node,...
US-9,537,394 Switch protection i auxiliary resonant circuit
A resonant power converter comprising electrical safety components comprising a combination of a diodes and a zener diodes coupled between DC conductors and an...
US-9,537,393 Determination of phase offsets in a power supply system having multiple switching converters
A controller (500) for determining a distribution of switching phases among switching elements of a power supply system The power supply system has a plurality...
US-9,537,392 Circuits and methods for dynamic voltage management
In one embodiment the present invention includes a circuit comprising a voltage adjust circuit and an input terminal of an electronic system. The voltage adjust...
US-9,537,391 Voltage regulation of a DC/DC converter
Power system includes at least one power source and a DC/DC converter with an input coupled to the power source, and an output coupled to a load, for allowing...
US-9,537,390 Control circuit, control method, DC-DC converter and electronic device
A control circuit (115), a control method, a DC-DC converter and an electronic device are provided. The control circuit (115) is used to control the DC-DC...
US-9,537,389 Inverter device, transformer, and transformer manufacturing method
Provided is an inverter device that can reduce high-frequency noise. The inverter device includes a transformer for converting the voltage of the AC power...
US-9,537,388 Hybrid distribution transformer with an integrated voltage source converter
A hybrid distribution transformer is provided that includes an electromagnetic transformer and a voltage source converter that is operable to reduce fluctuation...
US-9,537,387 Reference signal generating circuit and method using a sampled input signal and a reference clock signal, and...
A reference signal generating circuit is provided that generates a reference signal corresponding to an input signal for power factor compensation of a power...
US-9,537,386 Driver controller with internally calculated average output current
Methods, devices, and integrated circuits are disclosed for a driver controller that internally calculates average output current. In one example, a method...
US-9,537,385 Induction current sampling device and method for bridgeless PFC circuit
Disclosed are an induction current sampling device and method for a bridgeless PFC circuit. The device includes a first sampling unit, a second sampling circuit...
US-9,537,384 Power supply noise reduction circuit and power supply noise reduction method
To provide a power supply noise reduction circuit and a power supply noise reduction method that do not require circuit elements to be increased in size and do...
US-9,537,383 Switching regulator with controllable dead time and quick start
A driver circuit for driving a switching transistor includes a dead time calibration circuit and/or a quick start circuit. The dead time calibration circuit...
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