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Patent # Description
US-1,025,6749 Piezoelectric actuator, motor, robot, and method of driving piezoelectric actuator
The invention relates to a piezoelectric actuator including: a first piezoelectric vibrator including a first diaphragm and first piezoelectric elements that...
US-1,025,6748 Electrostatic actuator and method for producing the same
An electrostatic actuator having a stationary electrode and a fixedly cantilevered bender is described, wherein the bender includes a cantilever electrode...
US-1,025,6747 Electric power conversion device and electric power conversion system
In a control unit for drive-controlling a switching element unit of each power conversion device, a voltage correction amount calculation unit calculates a...
US-1,025,6746 Low-voltage discharge and actuation circuit for the traction converter of a vehicle
An actuation circuit for an inverter includes a direct voltage converter to convert direct current at a first voltage into direct current at an intermediate...
US-1,025,6745 Multilevel converter with reduced AC fault handling rating
A multilevel converter converting between AC and DC includes a phase leg having a first and a second phase arm, the first phase arm being connected between a...
US-1,025,6744 Controller device with adaptive synchronous rectification
In an example, a controller device for a resonant converter includes processing circuitry configured to output a first switching signal and a second switching...
US-1,025,6743 Method and apparatus for regulating an electrical power source based on global and local maximum load power
A method for regulating an electrical power source, comprising the steps of detecting for one or more predetermined conditions associated with a load power of...
US-1,025,6742 Self-driven AC-DC synchronous rectifier for power applications
Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously...
US-1,025,6741 Adaptive synchronous switching in a resonant converter
An embodiment of a resonant converter includes having resonant circuitry having inductive and capacitive elements configured to create electrical resonance when...
US-1,025,6740 Power conversion apparatus, power generation system, controller, and method for converting power
A power conversion apparatus includes a power converter, a voltage detector, a determiner, and a drive controller. The power converter is configured to convert...
US-1,025,6739 Multiunit power conversion system
A multiunit power conversion system comprises: a first power conversion unit, a second power conversion unit, and a current sharing transformer. The first power...
US-1,025,6738 Dual bridge DC/DC power converter
The present invention is related to a method for controlling a high frequency dual bridge DC/DC power converter of nominal frequency (f.sub.N) and nominal power...
US-1,025,6737 Integrated magnetic apparatus and DC-DC converter including the same
A single direct current (DC)-DC converter may include a switching part switching an input DC voltage; first and second transforming parts transforming an output...
US-1,025,6736 DC-DC converter with polarity reversal protection
A DC-DC converter includes a first half-bridge circuit, a second half-bridge circuit, at least one transformer having at least one primary winding and at least...
US-1,025,6735 Power supply with near valley switching
A switched-mode power supply with near valley switching includes a quasi-resonant converter. The converter includes a switch element that is turned on not only...
US-1,025,6734 Systems and methods for source switching and voltage generation
System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller...
US-1,025,6733 Tapped winding flyback converter for multiple output voltages
This disclosure relates to power converters capable of providing multiple output voltage levels. With respect to USB-C adapter design, the converter's output...
US-1,025,6732 Power conversion system and method of operating the same
A medium voltage direct current (MVDC) collector system for renewable power generation facilities includes at least one renewable energy generation device. The...
US-1,025,6731 High-efficiency holdup circuit for switch-mode power supply
Apparatus and associated methods relate to continuously providing power to a load throughout an interruption of a power source. While the power source is...
US-1,025,6730 Power conversion device
A housing of a power conversion device is partitioned into sealed and open parts. A first housing containing a primary-side electronic component connected to a...
US-1,025,6729 Switched-capacitor converter with interleaved half bridge
Circuits and methods are provided for voltage conversion within a switched-capacitor converter (SCC). The SCC includes multiple switch stages cascaded together....
US-1,025,6728 Multiphase interleaved pulse frequency modulation for a DC-DC converter
An apparatus includes a plurality of pulse control circuits and a control circuit. A given pulse control circuit of the plurality of pulse control circuits may...
US-1,025,6727 Multi-phase power supply with DC-DC converter integrated circuits having current sharing function
An interleaved multi-phase power supply with a plurality of DC-DC converter ICs. Each DC-DC converter IC has a current sharing pin, and the current sharing pins...
US-1,025,6726 Voltage conversion apparatus including output unit, comparator, delay circuit, and control circuit
A voltage conversion apparatus includes an output unit connected to an input voltage to output an output voltage according to a control signal. A comparator...
US-1,025,6725 Current detection circuit and DCDC converter including the same
According to an embodiment, a current detection circuit includes a transistor, an operational amplifier, and a transistor. In the transistor, the source and the...
US-1,025,6724 Power supply controller
Exemplary embodiments are directed to a power controller. A method may include comparing a summation voltage comprising a sum of an amplified error voltage and...
US-1,025,6723 Integrated circuit feed forward circuit with translinear cell
A power factor correction (PFC) integrated circuit having a feed forward circuit. The feed forward circuit comprises a first current source, a second current...
US-1,025,6722 Oscillator and associated direct current-to-direct current converter applying the oscillator
An oscillator includes a reference current generating circuit, a modulator circuit, and an oscillating circuit. The reference current generating circuit...
US-1,025,6721 Step-down chopper circuit including a switching device circuit and a backflow prevention diode circuit
In a step-down chopper circuit, a distance between a plurality of first mounting portions of a first semiconductor package that houses a switching device...
US-1,025,6720 Buck-boost converter using hysteretic control
Circuits and methods to achieve a hysteretic buck-boost converter system, separating buck and boost pulses based on monitoring a difference between the output...
US-1,025,6719 Power supply device
A power supply device includes a transformer, a primary semiconductor component, a secondary semiconductor component, a choke coil and a circuit board....
US-1,025,6718 Low-inductance half-bridge arrangement
The switching performance of a half-bridge arrangement particularly for a converter shall be improved. For this purpose, a half-bridge arrangement has a circuit...
US-1,025,6717 Zero current detection circuit for converter soft switching control
A circuit includes a zero current detector (ZCD) circuit that senses an inductor current of an inductor and generates signal pulses indicating when an...
US-1,025,6716 Power factor correction circuit, multiplier and voltage feed-forward circuit
A voltage feed-forward circuit, a multiplier using the voltage feed-forward circuit, and a power factor correction circuit using the multiplier. The voltage...
US-1,025,6715 Switching power supply device
A switching power supply device having: a power supply terminal VCC connected to one end of an output capacitor Co2; a high-voltage terminal VH connected to the...
US-1,025,6714 Snubber circuit
The present disclosure provides a snubber circuit, wherein the snubber circuit is used to an electronic equipment including a pulse signal generator, a driving...
US-1,025,6713 Power conversion device and method for controlling power conversion device
A power conversion device which converts power between a power grid and a DC power supply, includes: AC/DC converters for performing conversion from AC power to...
US-1,025,6712 Current ripple sensing controller for a single-stage LED driver
A current-ripple-based control strategy for an AC-DC converter with a series ripple cancellation converter (RCC). Embodiments provide series ripple cancellation...
US-1,025,6711 Power control apparatus and image forming apparatus using the same
A power control apparatus that supplies an AC current to a load and adjusts a current amount by setting a portion of a phase range among each of half-wave...
US-1,025,6710 Linear actuator
In a magnetic drive linear actuator, a load attachment portion is fixed to the lower side portion of the rectangular tubular coil frame of a mover, and a...
US-1,025,6709 Linear vibrator
A linear vibrator that transmits tactile signals to a user of a mobile phone, PDA, or a portable game console. The linear vibrator uses rubber or silicone...
US-1,025,6708 Electric machine
An electric machine includes a stator and a rotor operable with the stator. The rotor includes at least one pole section, the pole section defining a direct...
US-1,025,6706 Motor provided with noncircular stator core, apparatus for production of motor, and method for production of motor
A motor which reduces the manufacturing cost while able to reduce the cogging torque. The stator core is provided with a first core sheet and a second core...
US-1,025,6705 Method for repairing an electric generator having a rotor connecting ring with conductive arc segments
The invention relates to a method for repairing an electric generator, preferably in a wind turbine generator (WTG), the electric generator (10) having a stator...
US-1,025,6704 Rotor for rotary electric machine
A slip ring device includes an insulating molded body in which a pair of slip rings and a pair of connecting conductors are provided. The insulating molded body...
US-1,025,6703 Electric motor and method of manufacturing the electric motor
An electric motor, particularly an engine of a motor vehicle, has a temperature sensor for monitoring the operating temperatures of a winding. The temperature...
US-1,025,6702 Transducer device with form-fitting connection
A transducer device for attachment to one end of a shaft of an electric drive, the shaft having a shaft axis. The transducer device includes at least one recess...
US-1,025,6701 Electric power tool and method for driving brushless motor thereof
An electric power tool and a method for driving a brushless motor in the electric power tool. The electric power tool includes a driving circuit for driving the...
US-1,025,6700 Robust permanent magnet electric machine and methods
Methods and apparatus for enhancing the robustness and stability of an electric machine having a rotor, stator and housing. The rotor includes a radially...
US-1,025,6699 Method and device for liquid cooling of electric motor and transmission configuration
A method and device for liquid cooling of an electric motor and a transmission configuration. The electric motor includes a rotor with a rotor shaft and a...
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