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Control of a converter for an electric vehicle
A method for control of an electric vehicle converter is provided. The converter is adapted to drop voltage and a counting unit is adapted to count a signal...
PFC power system with power managed main and standby voltage outputs
A power system is disclosure. The power system includes a processor, a power supply device, and a power-managing module. The power supply device includes a...
Pseudo-constant frequency control for voltage converter
A pseudo-constant portion of a switching cycle (ON time or OFF time) is constant over short periods of time but the pseudo-constant portion is controlled over...
Power supply apparatus
A power supply apparatus including a multi-outputs power supply circuit and a first regulating circuit is provided. The multi-outputs power supply circuit has a...
Method and apparatus for regulated three-phase AC-to-DC conversion with
high power factor and low harmonic...
The present invention relates to methods and corresponding apparatus for efficient 3-phase AC to DC conversion with high power quality, for example, high power...
AC-DC power converter
In one embodiment, an AC-DC power converter can include: (i) a rectifier bridge and filter to convert an external AC voltage to a DC input voltage; (ii) a first...
Isolation device and system
An isolation device having first and second semiconductor is disclosed. The first semiconductor die may be adapted to transmit a first signal to the second...
Power supply controller with minimum-sum multi-cycle modulation
An example power supply controller includes a signal separator circuit that generates a feedback signal. An error signal generator generates an error signal in...
Systems and methods for current control of power conversion systems
System and method for regulating an output current of a power conversion system. An example system controller for regulating an output current of a power...
Switching converter, control circuit thereof, AC/DC converter, power
adapter and electronic device
A control circuit used in a switching converter having a coil, a switching transistor, and a detection resistor, includes: a current detection terminal...
Method for controlling a power source, and power source and process
A method for controlling a power source is specified. The power source comprises a first converter (1) for converting an input voltage (U.sub.E) to an...
Precise output power detection
A switching power converter provides regulated output power to a load. The switching power converter comprises a transformer including a primary winding coupled...
Resonant converter, power supply and power controlling method thereof
A resonant converter, a power supply and a power controlling method thereof are provided. The power supply includes a resonant converter which includes a square...
Synchronous DC-DC converters, and systems and methods of controlling same
A synchronous DC-DC converter (300) for converting an input voltage (V.sub.in) into an output voltage (V.sub.out), the converter having a continuous current...
Two-phase interleaved converter and method of controlling the same
A two-phase interleaved converter includes two sub-circuits, a voltage controller, a current controller, a balancing controller and a phase shifter. The voltage...
Spread spectrum power converter
A power converter includes a first stage voltage modulator configured to receive an input voltage and provide a modulated voltage. A second stage power...
Power management circuit and method
A power management circuit and method are described. In the method, whether a first voltage and/or a voltage source are present is determined. Based on a first...
A semiconductor device includes a first semiconductor chip which includes a first power supply terminal and into which a circuit block which is operated by a...
Switching power supply and electronic control unit
A switching power supply converts an input voltage to a predetermined output voltage by controlling a switching device. The switching power supply includes a...
DC-DC converter using internal ripple with the DCM function
A DC-DC converter, having an input voltage and an output voltage, includes an inductor and a switch switching the input voltage to an input side of the...
Power supply circuitry and adaptive transient control
A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint...
Capacitive current-mode control of a DC/DC converter
Systems and methods for implementing capacitive current-mode control of a voltage regulator or converter, such as a DC/DC buck converter, are provided. An...
The present invention generally relates to powering a switching controller of a switch mode power converter (SMPC), and more particularly to a method of...
A semiconductor device according to an embodiment comprises a first transistor capable of supplying or interrupting power to a load. A clamper comprises a first...
This application discusses, among other things apparatus and methods for a voltage boost circuit. In an example, a voltage boost circuit can include first and...
Power supply control device
A power-supply control device that includes a transistor that is interposed between a power source and a load; a control circuit to which a voltage from the...
Voltage doubler and voltage doubling method for use in PWM mode
An apparatus and a method for generating a pulse width modulated, PWM, voltage doubler signal is presented The apparatus comprises a voltage source, a...
Power supply circuit
In a power supply circuit having input and output terminals, an error amplifier has first and second paths independent of each other to output a control...
Charge pumps with improved latchup characteristics
Some embodiments of the present disclosure relate to improved regulators for charge pumps. Such regulators selectively activate a charge pump based not only on...
Power factor corrector with high power factor at low road or high mains
A power factor corrector raises power factor at low loads or high mains voltages by modifying the switch timing or the current received by the power converter....
AC-DC converter with adjustable output
An electrical adapter can include a rectifying circuit configured to receive an AC power input, a power factor corrector (PFC) circuit coupled with an output of...
Low-cost driver circuit with improved power factor
A driver circuit for powering a load is disclosed. The driver circuit includes an input for receiving for connection to a source of AC power, and a rectifier...
Method and apparatus for controlling a start-up sequence of a DC/DC buck
A method of controlling a start-up sequence of a DC/DC Buck converter includes continuously comparing the Buck converter's output voltage with an internal...
Soft-start for isolated power converter
Current flowing through an inductor on a primary side of a voltage converter is sensed and compared to a threshold peak current value to determine when to end...
A snubber circuit includes a current-variation suppressor, a voltage-variation suppressor, a retrieving circuit, and a discharging circuit. The...
Quick discharge circuit
A quick discharge circuit includes a reference voltage source, a power supply voltage monitoring circuit, a control circuit, and a discharge circuit. The...
Power conversion device and refrigeration/air-conditioning system
A power conversion device according to the present invention includes a power supply, a booster unit (a reactor, a switch) that boosts a voltage supplied from...
Voltage converter and power management device including the same
A voltage converter includes a driving device unit, a current sensing unit and a switching control circuit. The driving device unit charges an input power...
Non-contact power transmission apparatus
An aspect of the present invention has a first disk-shaped member coupled to a first rotating shaft to rotate and a first plate-shaped member having a surface...
Inertial energy storage system and hydro-fluoro-ether power transformer
scheme for radar power systems and...
A multi-port storage system includes a dynamo-electric machine with integral rotor inertia forming a primary energy storage system. The dynamo-electric machine...
A fluid-driven electricity generator includes a stator assembly and a rotor assembly. The stator assembly includes a stator core that includes a plurality of...
Direct drive wind turbine with a thermal control system
A direct drive wind turbine with a thermal control system has a generator with a rotor and a stator and a bearing with an inner ring and an outer ring...
Conducted emissions filters
Conducting emission suppression in a power circuit for an electric motor comprises a negative temperature co-efficient resistor and capacitor connecting one of...
A motor includes an attachment portion, a first circuit board, and a second circuit board. The attachment portion is fixed to a frame of an apparatus to be...
Apparatuses and methods for cooling electric machines
Cooling apparatuses and methods comprising cooling apparatuses, such as those configured to be coupled to and/or cool electric machines (e.g., motors,...
Cooling device for electric motor and electric motor
A cooling device for an electric motor, comprising a cover which has a cylindrical-shaped main part which can house the electric motor, and a fan motor which is...
Wind turbine generator with gear unit cooling system including re-cooling
A wind turbine includes a generator having a generator cooling system configured for passage of a cooling fluid, and a gear unit including a gear unit cooling...
Active cooling of a motor having an integrated cooling channel
A motor, comprising an electronics housing having integrated motor electronics, a stator, and a rotor. The stator comprises a stator bushing and a laminated...
Modular actuation device for an aerodynamic control surface of a missile
A modular actuation device for an object, such as an aerodynamic control surface of a missile. The modular actuation device can include an outer support...
Dual rack output pinion drive
The dual output pinion rack drive includes an epicyclic gearbox which permits the division of power of a single motor to first and second spur output pinions...