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Patent # Description
US-1,000,8948 Active clamp circuit for switched mode power supplies
Switched mode power supply (SMPS) with at least one active clamp circuit and method of operating such a SMPS are described. The active claim circuit utilizes a...
US-1,000,8947 Flyback converter with secondary side regulation
Disclosed examples include flyback converters, control circuits and methods to facilitate secondary side regulation of the output voltage. A primary side...
US-1,000,8945 Switching power supply device
A switching power supply device includes a power factor improvement circuit, a phase-shifted full bridge type DC/DC converter that is arranged in a rear stage...
US-1,000,8944 Control method and control circuit for switching power supply
Disclosed are a control method and a control circuit for a switching power supply, said switching power supply comprises a secondary side controller and a...
US-1,000,8943 Semi-resonant power converters and methods of operation
Each phase of a multi-phase voltage converter includes a power stage, passive circuit, and synchronous rectification (SR) switch. Each passive circuit couples...
US-1,000,8942 High side signal interface in a power converter
A controller for use in a power converter includes a control circuit coupled to generate a low side drive signal to control switching of a low side switch, and...
US-1,000,8941 Auxiliary power supply for switch-mode power supplies
A combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit...
US-1,000,8940 Power supply device and method for controlling power supply circuit
A power supply device includes: a memory; and a processor coupled to the memory and the processor configured to: determine a duty ratio of a control signal of a...
US-1,000,8939 Systems and methods for protecting power conversion systems based on at least feedback signals
System and method for protecting a power conversion system. An example system controller includes a protection component and a driving component. The protection...
US-1,000,8938 Power conversion device
A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A...
US-1,000,8937 Apparatus for controlling DC link voltage in power cell of medium-voltage inverter
Disclosed herein is an apparatus for controlling DC link voltage in power cells of a medium-voltage inverter. The apparatus controls DC link voltage in...
US-1,000,8936 Scheme for automatically searching optimal phase shedding threshold for voltage converter having multi-phase...
A method for performing phase shedding for a voltage converter having a multi-phase output stage circuit includes: sensing an input current of the voltage...
US-1,000,8935 DC-DC converter
There is provided a DC-DC converter which is safe and secure, but yet with low power consumption. The DC-DC converter is configured to monitor the output...
US-1,000,8934 DC-DC converter with floating capacitors
A DC-DC power converter is described having a power converter input for receiving a supply voltage; a power converter output for outputting a converted supply...
US-1,000,8933 Frequency detection to perform dynamic peak current control
The amount of power being output to the load is sensed by sampling the frequency of the pulse width modulation signal that is controlling the switch that is...
US-1,000,8932 Synchronous rectification DC/DC converter
A synchronous rectification DC/DC converter includes a first transistor and a second transistor including respective main electrodes connected to a common...
US-1,000,8931 Semiconductor integrated circuit
According to one embodiment, in a semiconductor integrated circuit, a first input terminal of an error amplifier is electrically connected to a third node...
US-1,000,8930 Bootstrap circuit and associated direct current-to-direct current converter applying the bootstrap circuit
A bootstrap circuit applied to a first transistor of a direct-current (DC) to DC converter includes a second transistor, a bootstrapping capacitor and a...
US-1,000,8929 DC-DC converter and semiconductor device
A DC-DC converter with low power consumption and high power conversion efficiency is provided. The DC-DC converter includes a first transistor and a control...
US-1,000,8928 Enhanced switched capacitor filter (SCF) compensation in DC-DC converters
A system, DC-DC converter, and compensation method and circuit for a DC-DC converter are disclosed. For example, a compensation circuit for a DC-DC converter is...
US-1,000,8927 Regulator circuit for reducing output ripple
A regulator circuit includes an operational amplifier, a buffer, a power transistor, a first feedback circuit, a current sensor, and second feedback circuit....
US-1,000,8926 Switched capacitor DC-DC power converter circuit and voltage output method using the same
A switched capacitor DC-DC converter circuit and a method for outputting voltage using the same are disclosed. The circuit includes a switched capacitor circuit...
US-1,000,8925 Control arrangement and method for controlling a power supply unit
A control arrangement for use in controlling the electrical supply from a power supply unit including an internal capacitance. The control arrangement includes...
US-1,000,8924 Offline power converter with multiplier
An integrated circuit power factor controller includes a feedback input terminal for receiving a feedback signal representative of an output voltage, a control...
US-1,000,8923 Soft start circuit and power supply device equipped therewith
To provide a soft start circuit capable of obtaining a high-accuracy soft start time. The soft start circuit is equipped with a constant current source, an...
US-1,000,8922 Switching power supply
A switching power supply may include: an inductor connected to an input voltage terminal; a first switch configured to form a first electrical path between the...
US-1,000,8921 Driving power generating circuit and a method for generating a driving power
A driving power generating circuit configured to generate a driving power to drive a load is provided. The driving power generating circuit includes a signal...
US-1,000,8920 Apparatus and method of fast commutation for matrix converter-based rectifier
A method of commutation in a matrix rectifier from an active vector to a zero vector includes two steps. A method of commutation in a matrix rectifier from a...
US-1,000,8919 Semiconductor device
A method of controlling a power supply to a semiconductor device including a first region having a high-side drive circuit, a second region having a signal...
US-1,000,8918 Phase-shifting optimization for asymmetric inductors in multi-phase DC-DC converters
A system is disclosed which provides the minimization of peak-to-peak output voltage ripple in multi-phase DC-DC switching converters, with two or more...
US-1,000,8917 Bus capacitor bank configuration for a multi-level regenerative drive
A regenerative drive device and a method for configuring the DC link of a regenerative drive device are disclosed. The multilevel regenerative drive device may...
US-1,000,8916 High efficiency AC DC electric motor, electric power generating system with variable speed, variable power,...
A method and apparatus for reducing electromagnetic drag in an electric machine may include a laminated stator having wire slots disposed around the inner...
US-1,000,8915 Displacement devices and methods for fabrication, use and control of same
Displacement devices comprise a stator and a moveable stage. The stator comprises a plurality of coils shaped to provide pluralities of generally linearly...
US-1,000,8914 Coil-oscillator vibration unit for rail workhead
A rail maintenance vehicle includes a frame, a workhead, and a vibrating unit. The frame includes wheels that travel along rails. The vibrating unit is coupled...
US-1,000,8913 Brush-communicated direct-current motor
A brush-commutated direct-current motor comprises a stator which is fitted with a plurality of field poles, a rotor which can rotate in relation to the stator...
US-1,000,8912 Magnetic drive devices, and related systems and methods
A magnetic drive device may comprise a stator comprising a plurality of windings for generating a first number of magnetic pole pairs and a rotor comprising a...
US-1,000,8911 Brush assembly
A brush assembly for a brush motor includes a support member, brush holders, at least four brushes respectively mounted to the brush holders, and first and...
US-1,000,8910 Electric motor/generator
Certain embodiments are directed to devices, methods, and/or systems that use electrical machines. For example, certain embodiments are directed to an...
US-1,000,8909 Motor driving control device for vehicle
A motor driving control device for a vehicle that includes: a circuit board on which is packaged a circuit that generates the voltage applied to windings of a...
US-1,000,8908 Electric machine for vehicle
A vehicle electric machine includes a rotor, and a stator having a core with an end face and end windings adjacent to the end face. An annular cooling trough...
US-1,000,8907 Over mold with integrated insert to enhance heat transfer from an electric machine end winding
An electric machine includes a stator. The stator has a plurality of slots defined between a plurality of laminated protrusions. A plurality of wire windings is...
US-1,000,8906 Electrical rotating machine with one-sided cooling and method for one-sided cooling
An electrical rotating machine includes a laminated stator core having a first axial duct to convey a cooling air stream generated by a turbomachine through the...
US-1,000,8905 Hollow motor module
A hollow motor module as a combination of a motor and a speed reducer is disclosed. The motor includes an outer stator, a first rotor and a plurality of second...
US-1,000,8904 Vehicle drive device
A vehicle drive device that includes a rotary electric machine; a transmission device that is disposed side by side with the rotary electric machine in an axial...
US-1,000,8903 Energy storage management system
An illustrative energy storage system includes an energy storage device, a processor coupled to the energy storage device, and a memory coupled to the...
US-1,000,8902 Stator for electric motor, electric motor, and air conditioner
The present invention includes a stator; a substrate on which a position detection circuit for a rotor is mounted; a lead wiring part attached to one axial end...
US-1,000,8901 Step motor
Disclosed herein is a step motor. The step motor includes a casing, a stator disposed in the casing, with a coil being wound around the stator, a rotor disposed...
US-1,000,8900 Rotating electric machine
A fixing member (14) formed of an annular metal material is molded integrally with a connecting plate (13) to constitute a connecting plate structure (9), said...
US-1,000,8899 Foil bearing supported motor with adjustable thrust bearing cap
An electric motor includes a stator; an annular end cap, fastened at a first end of the stator; a threaded seat that is mounted at an outward end face of the...
US-1,000,8898 Foil bearing supported motor with housingless stator
An electric motor stator includes an armature surrounding a longitudinal opening for receiving a shaft, with longitudinal fins protruding from an outer surface...
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