At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.
Shovel and method of controlling shovel
A shovel includes an internal combustion engine whose revolution speed is controlled to be constant, a hydraulic pump connected to the internal combustion...
Piezo actuator having an electrode structure for a torsional vibration
mode, and rotation-type ultrasonic motor...
The present invention relates to a piezo actuator having an electrode structure for a torsional vibration mode, and to a rotation-type ultrasonic motor...
Vibration power generator
A vibration power generator comprises: a fixed substrate; a vibrating body having a surface opposed to the fixed substrate, the vibrating body being vibratable...
Apparatus and a method for enhancing power output in electrical circuits
A controller connected to the gate, cathode and anode of a thyristor, may be configured such that in response to the anode being provided with a voltage, the...
DC-AC inverter having controlled magnetization reversal of isolation
Disclosed is a power inverter which converts voltage from a DC source into high frequency rectangular alternating voltage pulses which are transferred to a load...
Method and apparatus for distributed power generation
A method and apparatus for generating AC power. In one embodiment, the apparatus comprises a DC/AC inversion stage capable of generating at least two of a...
Power converting circuit
A power conversion circuit for supplying power to an inductive load, includes a switching circuit and an energy saving circuit. The inductive load is supplied...
Terminal circuit in inverter
A terminal circuit in an inverter is disclosed, the terminal circuit including a photo-coupler configured to electrically insulate input/output signals, to...
An inverter device includes; a switching element; a plurality of flyback diodes each connected in parallel with the switching element; a first conductor plate...
Cascade bridge-type DC-AC power conversion method and converter device
A cascade bridge-type DC-AC power converter device includes a low-frequency bridge-type power converter including an AC terminal and a DC bus and a...
Systems approach to photovoltaic energy extraction
Described is a method and apparatus for per-panel photovoltaic energy extraction with integrated converters. Also described are switched-capacitor (SC)...
Power module, power converter device, and electrically powered vehicle
A power converter device includes a double-sided electrode module that converts direct current power to alternating current power, a heat dissipating base, a...
Method for designing power controller, power controller, and power control
A method including: setting a weighting function based on an amount of change in impedance of a control target; and determining, for a power controller, a...
Parallel connected inverters
A distributed power system wherein a plurality of power converters are connected in parallel and share the power conversion load according to a prescribed...
Simplified control method for a three-phase AC voltage-DC voltage
A method for controlling a converter for converting an n-phase AC input voltage into a DC output voltage, each phase of the AC input voltage being connected to...
Dynamic frequency compensation of switching power converters
A kilowatt-scale high-frequency electrical power conversion system adapted for variable output power delivery is described, in which switching frequency of...
Floating bias generator
In various embodiments a circuit is provided which may include a node at which a circuit potential may be provided; an alternating voltage providing circuit...
High voltage DC power conversion system and method of operating the same
A fraction rated conversion system for coupling a plurality of high voltage direct current (HVDC) power strings in parallel to an HVDC transmission system...
Managing leakage inductance in a power supply
An apparatus includes: a power supply circuit including at least a first stage having a push-pull circuit topology, the first stage including at least one...
Isolated switching converter with secondary side modulation and control
A controller of an isolated switching converter includes an error amplifying circuit, a modulation signal generator, a first comparison circuit, a primary off...
Electrical circuit for delivering power to consumer electronic devices
An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a power...
Switching power supply system
A control circuit controlling the driving of a switching device includes an under voltage lock out circuit stopping the operation of the control circuit when a...
Current regulation apparatus
A current regulation apparatus is provided. The current regulation apparatus includes a trans unit, a first switching unit, a voltage detection unit, a voltage...
Flyback converter with current controlled low power mode
An isolated switching converter includes a transformer having a primary winding, a secondary winding and an auxiliary winding, a primary switch coupled to the...
High efficiency zero-voltage switching (ZVS) assistance circuit for power
A system includes a power converter configured to convert input power into output power. The power converter includes first and second converter bridges, where...
Buck converting controller for reduction of output voltage overshoot
A buck converting controller, adapted to control a DC-DC buck converting circuit to convert an input voltage into an output voltage, is disclosed. The buck...
Multi-phase SMPS with loop phase clocks and control method thereof
A multi-phase SMPS has N switching circuits; a setting signal generator generating a setting signal based on an output signal of the SMPS; a clock signal...
Multiphase converter controller with current balance
A multiphase converter controller with current balance, configured to control a plural converting circuit to commonly supply an output voltage, is disclosed....
Power source circuit and method of controlling power source circuit
A power source circuit includes a power source terminal for inputting a power source voltage; a switching regulator including a switching circuit connected to...
Systems and methods for DC-to-DC converter control
A regulated, power supply system is described using multiphase DC-DC converters with dynamic fast-turnon, slow-turnoff phase shedding, early phase turn-on, and...
Method for a current mode buck-boost converter
A current mode control buck-boost converter with improved performance utilizes separate buck and boost pulses. The buck-boost converter utilizes a buck/boost...
Vehicle power-supply unit
A vehicle power-supply unit has chargeable and rechargeable first power supply and second power supply connected to a voltage transducer at input and output...
Method and apparatus for controlling programmable power converter
The present invention provides a circuit for controlling a programmable power converter. The circuit includes a micro-controller, a controller, and a timer. The...
Control circuit of power converter and method therefore
A control circuit of a power converter and a method therefore are provided. The control circuit comprises an input circuit, an amplifier, a PWM circuit, and a...
Voltage detection method and circuit and associated switching power supply
In one embodiment, a method of detecting a voltage can include: (i) generating a first current according to a first voltage and a converting resistor; (ii)...
Control circuit and control method for charge pump circuit
A method of controlling a charge pump circuit can include: (i) detecting a difference between an output voltage and an input voltage in real time; (ii)...
Charge pump circuit and PLL circuit
A charge pump circuit includes a constant current circuit configured to have one terminal connected with a power source node; a first node configured to input...
Passive coupled-inductor soft-switching circuit of power factor correctors
A passive coupled-inductor soft-switching circuit of a power factor corrector is provided. The passive coupled-inductor soft-switching circuit includes a power...
Power conversion apparatus, control device for power conversion apparatus,
and method for controlling power...
A power conversion apparatus includes a power converter, an LC filter, and a controller. The power converter is disposed between an AC power source and a load....
Systems and methods for limiting current inrush in electric drive systems
Systems and methods for controlling potentially damaging inrushes of current to the capacitor bank of an electric drive system when the voltage on the capacitor...
Active power conditioner
Methods and systems for active power conditioner topologies including semiconductor input and output switches, an inductor, a capacitor in parallel with the...
Control circuit for multiple high side switches
The efficient control of a plurality of high side switches, e.g. the high side switches of half bridges is presented. A control circuit contains a charge...
Positional encoder and control rod position indicator for nuclear reactor
A cam is immersed in water at an elevated temperature and/or pressure. A reciprocating cam follower also immersed in the water contacts a surface of the cam....
Wireless massage, heating and lift system
A massage device including a massage pad including a plurality of vibrating units, a plurality of heating elements, and/or a plurality of lifting actuators...
Brushless DC motor
A brushless DC motor comprises a plurality of magnets positioned at a distance from one another on a circular structure, and a plurality of solenoids provided...
Apparatus for alarming inverter status and apparatus for analyzing motor
status in mobile terminal
Disclosed are an apparatus for alarming an inverter status and an apparatus for analyzing a motor status in a mobile terminal. The apparatus for analyzing a...
Brushless motor insulator, brushless motor stator, brushless motor, and
method of manufacturing brushless motor
Provided is a brushless motor insulator capable of improving workability relating to the winding of electric wires by a simple configuration. An insulator 10...
Direct-drive superconducting synchronous generator for a wind turbine
The invention refers to a direct drive electric generator for a wind turbine provided with rotor salient poles and a ladder-like cryostat for housing...
Biomechanical electrical power generation apparatus
An apparatus and method for generating electrical power from a user comprises a motion capture apparatus that captures at least a portion of motion of a pair of...
Motor frame with hanging features and bolts
A motor frame comprising four side surfaces, built-up portions and leg members is provided. The four side surfaces define the outer circumference of the motor...