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Patent # Description
US-9,647,575 Power converter
A power converter fixes, in one cycle of an alternating-current voltage output command, a gate pulse signal to always output a direct-current input positive...
US-9,647,574 Multi-stage power inverter
An inverter for converting an input direct current (DC) waveform from a DC source to an output alternating current (AC) waveform for delivery to an AC grid...
US-9,647,573 Low-power power supply
A low-power power supply for an electronic circuit uses an existing current input and converts the current to a higher voltage sufficient for supplying an...
US-9,647,572 Method for controlling a converter
A method for controlling a converter including a resonant circuit, where the converter is controlled such that control switches are switched into a first state...
US-9,647,571 Internal inverter communications
Inverter internal communication features are disclosed. A multiple-stage inverter includes DC to DC and DC to AC converter switches in different power domains,...
US-9,647,570 Photovoltaic system and method of operation
The present invention relates to a circuit arrangement for electrical installations for converting and adapting a DC voltage of a voltage source, more...
US-9,647,569 Matrix convertor, power generation system, and method for converting power with control command generation
A matrix convertor includes a power convertor and a controller. The power convertor includes a plurality of bidirectional switches disposed between a plurality...
US-9,647,568 Bi-directional multi-port applications
Methods and systems for bi-directional multi-port power conversion systems and applications are disclosed. In some sample embodiments, current-modulating power...
US-9,647,567 Regulating controller for controlled self-oscillating converters using bipolar junction transistors
A power converter controller and methods for its operation are provided that can control a self-oscillating power converter that uses a Bipolar Junction...
US-9,647,566 Switching power supply apparatus
A switching power supply apparatus includes: a dead time circuit that receives an output control signal and generates dead time signal to specify a time width...
US-9,647,565 Method for driving a resonant converter, and corresponding converter and computer program product
A driving module of a resonant converter receives an enabling signal and a voltage across a switch of a secondary side, and generates a control signal for first...
US-9,647,563 Active energy recovery clamping circuit to improve the performance of power converters
A regenerative clamping circuit for a power converter using clamping diodes to transfer charge to a clamping capacitor and a regenerative converter to transfer...
US-9,647,562 Power conversion with switch turn-off delay time compensation
In accordance with an embodiment, a method includes driving an electronic switch in a switched-mode power converter in successive drive cycles, wherein driving...
US-9,647,561 Programmable current limit circuit for a programmable power supply
A control circuit of a power supply is provided. The control circuit includes a circuit and a PWM circuit. The circuit generates a limit signal in response to...
US-9,647,560 Secondary-side dynamic load detection and communication device
A switching power converter provides regulated voltage to a load. The switching power converter comprises a transformer including a primary winding coupled to...
US-9,647,559 Circuit implementations reducing losses in a power supply
A power supply circuit includes a control switch, a synchronous switch, an inductor, and a voltage ramping circuit. A common node in the power supply serially...
US-9,647,558 System and method for maintaining a constant output voltage ripple in a buck converter in discontinuous...
The system and method creates a substantially constant output voltage ripple in a buck converter in discontinuous conduction mode by varying the on-time of a...
US-9,647,557 Three phases controller for buck-boost regulators
Systems, devices and methods using three separate switching phases for a buck-boost regulator are disclosed. The regulator may operate in a boost mode, a buck...
US-9,647,556 DC to DC converters and controllers thereof
In a controller for a DC to DC converter, PWM signal generating circuitry generates a set of PWM signals phase-shifted relative to one another, and controls...
US-9,647,555 Chopper output stage for arc welder power source
Power sources are disclosed for electric arc welding or cutting processes, in which an interleaved multiphase switching converter is provided with a plurality...
US-9,647,554 Single inductor multi-output DC-DC converter and operating method thereof
Provided is a DC-DC converter including an inductor configured to store input energy, a ground switch configured to provide a ground path of the inductor in...
US-9,647,553 Bidirectional two-base bipolar junction transistor operation, circuits, and systems with double base short at...
Methods, systems, circuits, and devices for power-packet-switching power converters using bidirectional bipolar transistors (BTRANs) for switching....
US-9,647,552 Constant on time switching converter with DC calibration
A reference compensating circuit used in a COT control circuit. The reference compensating circuit has an error amplifier, a first current sink, a resistor, a...
US-9,647,551 Switched power control circuits for controlling the rate of providing voltages to powered circuits, and related...
Switched power control circuits for controlling the rate of providing voltages to powered circuits are disclosed. In one aspect, a switched power control...
US-9,647,550 Negative voltage signal generation circuit
A negative voltage signal generation circuit is described. The first thin film transistor (TFT) connects the first ground terminal to the control signal...
US-9,647,549 Current sense controller for a DC-to-DC converter
A DC-to-DC converter comprises a first switch, a second switch coupled to the first switch, an inductor, and a plurality of serially connected power...
US-9,647,548 Method for operating a power converter circuit and power converter circuit
In accordance with an embodiment, a method includes converting power by a power converter circuit having a plurality of converter cells coupled to a supply...
US-9,647,547 Voltage conversion device for stepping up voltage
The present invention is intended to discriminate between a battery voltage sensor and the input voltage sensor of a converter for abnormality, without stopping...
US-9,647,545 Reduced sleep current in power converters
A low standby power DC-DC converter can be powered down during standby mode. The DC-DC converter can be periodically awakened between sleep cycles to check if...
US-9,647,544 Magnetic component, power converter and power supply system
A magnetic component has a core on which windings are wound. The windings are electrically connected in series to constitute a coil of a first reactor. The...
US-9,647,543 Methods and systems for improving light load efficiency for power stages of multi-phase voltage regulator circuits
Methods and systems are disclosed that may be employed to improve efficiency of smart integrated power stages (IPstages) of multi-phase VR systems while...
US-9,647,542 Switched mode power supplies
A switched mode power supply, SMPS. The SMPS comprises a switch, one or more inductors, an output smoothing capacitor, and a controller. The controller is...
US-9,647,541 Hysteretic control DC/DC converter switching frequency with reduced dependence on voltage and current
In a hysteretic control DC/DC converter apparatus having a coupling circuit that couples a voltage input to a voltage output, a control signal is generated...
US-9,647,540 Timing generator and timing signal generation method for power converter
A timing generator and a timing signal generation method for a power converter are provided. The timing generator includes an adjusting circuit and a timing...
US-9,647,539 Charge pump based on a clock generator integrated chip
A charge pump includes chip, package substrate and circuit board. Chip includes transistor set including at least four transistors connected to first input end...
US-9,647,538 Voltage regulator, memory system having the same and operating method thereof
Provided herein are a voltage regulator, a memory system having the same and an operation method thereof. The memory system includes a memory device configured...
US-9,647,537 Charge pump circuit for generating a negative voltage
A circuit for generating a negative voltage on the basis of a positive voltage, including: at least one first transistor between a first terminal for applying a...
US-9,647,536 High voltage generation using low voltage devices
A charge pump design suitable for generating high voltages employs multiple low voltage capacitors and low voltage transfer switches, with a limited number of...
US-9,647,535 Compact structure of power-supply apparatus capable of minimizing electromagnetic noise
A power-supply apparatus is provided which includes a transformer, a primary semiconductor unit, a secondary semiconductor unit, and a secondary electronic...
US-9,647,534 Power conversion apparatus
A power conversion apparatus is constituted by a power conversion circuit and a control section. The control section causes a gate driving signal to alternately...
US-9,647,533 PFC circuits with very low THD
A boost chopper circuit is described that an alternating current (AC) power source; at least one inductor connected to said AC power source; a rectifier...
US-9,647,532 Control device for a PFC converter and corresponding control method
A control device for a converter of the switched-mode type provided with an inductor element and a switch element generates a driving signal for controlling...
US-9,647,531 Soft-start switching power converter
A soft-start switching power converter includes a voltage converting circuit and a soft-start circuit. The voltage converting circuit includes a transformer,...
US-9,647,530 Switching power supply with preventive maintenance function
A switching power supply is designed so that a switching frequency deviates from a predetermined range before an output voltage deviates from a predetermined...
US-9,647,529 Modular multi-stage inverter comprising surge arrester
Electric power is transferred between an AC voltage grid and a DC voltage grid in the high-voltage range. Phase modules have at least one common DC voltage...
US-9,647,528 Switch control circuit and resonant converter including the same
A resonant converter includes a first switch coupled between a first node and a primary side ground, a second switch coupled between an input voltage and the...
US-9,647,527 Power supply circuit and power factor correction circuit
A power supply circuit includes a switching element and a control section. The control section converts back electromotive force generated at the time of the...
US-9,647,526 Power-packet-switching power converter performing self-testing by admitting some current to the link inductor...
Methods and systems for a startup self-test for bidirectional power converters. Voltage levels across bidirectional switches in a bidirectional power converter...
US-9,647,525 Power supply device with current limit based on output current and input voltage
A power supply device includes a first inverter that converts a first direct-current voltage into a first alternating-current voltage and outputs the first...
US-9,647,524 Linear actuator
A linear actuator includes an inner core, and an outer core that is provided outside the inner core in a radial direction while being supported by a pair of...
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