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Patent # Description
US-1,004,4299 Motor driving device
A motor driving device includes: an inverter control unit configured to generate and output a control signal for feedback-controlling a motor using a control...
US-1,004,4298 Rotating electric machine drive system
A rotating electric machine drive system includes a rotating electric machine and a drive apparatus. The rotating electric machine includes a Y-connected...
US-1,004,4297 Method and apparatus for controlling an electric motor of a cooling fan
A vehicle including a cooling fan that is rotatably coupled to an electric motor that is electrically powered by a DC power source via an inverter is described....
US-1,004,4296 Multiaxis drive device and control instrument fitted with such a device
An electric motor device includes a rotor, a stator, and electrical means for driving rotation of the rotor relative to the stator, the device being...
US-1,004,4295 Piezoelectric actuator and robot
A piezoelectric actuator includes a piezoelectric element, a vibrating plate configured to vibrate according to application of a signal to the piezoelectric...
US-1,004,4294 Apparatus and method for controlling asymmetric modular multilevel converter
Disclosed is an apparatus and method for controlling an asymmetric modular multilevel converter which allow numerous levels to be expressed according to a...
US-1,004,4293 High-voltage inverter
An inverter includes transformers having identical characteristics. Exciting windings of the transformers are connected in parallel so that the transformers are...
US-1,004,4292 Method for controlling inverter system
The present invention relates to a method for controlling an inverter system including a plurality of inverters connected in parallel. The method includes:...
US-1,004,4291 Method and device for modulating a five-level inverter, and photovoltaic system
A method and device for modulating a five-level inverter, and a photovoltaic system are provided. The method includes: acquiring a voltage command value Vcmd of...
US-1,004,4290 Energy harvester, corresponding apparatus and method
An energy harvester circuit operates to harvest energy in battery-less electrical apparatus. The circuit includes a string of capacitors coupled to a circuit...
US-1,004,4289 LED drive circuit including a plurality of LEDs connected in series
The LED drive circuit has a rectifying circuit that rectifies an alternating-current voltage, an LED string including a plurality of LEDs connected in series, a...
US-1,004,4288 Combined inverter
A combined inverter is arranged, which includes at least two separate box bodies connected detachably, all components of the combined inverter are placed into...
US-1,004,4287 Converter system having carbon fiber conductor
A converter system comprising a capacitance (C), an inverter (20) comprising at least two controllable semiconductor switches (S1, S2, S3, S4, S5, S6), and at...
US-1,004,4286 Power conversion system including plurality of power converters connected in parallel to load
An uninterruptible power supply system includes a plurality of uninterruptible power supply devices, and each uninterruptible power supply device includes a...
US-1,004,4285 Alternating current conversion circuit
Disclosed is an alternating current conversion circuit including an AC input end, an AC output end, an intelligent conversion circuit, a voltage sampling...
US-1,004,4284 Synchronous rectifier driving method, synchronous rectifier circuit and switching power supply
A synchronous rectifier driving method, a synchronous rectifier circuit and a switching power supply are provided, and the method includes: detecting an output...
US-1,004,4283 Synchronous rectification control circuit and power supply thereof
In one embodiment, a synchronous rectification control circuit in a flyback converter, can include: a first control circuit that receives a drain-source voltage...
US-1,004,4282 Power conversion device
Using two converters placed in a primary-side and a secondary-side and each configured as a single-phase full-bridge, and one single-phase transformer TR, a...
US-1,004,4281 Bidirectional insulated DC/DC converter and smart network using the same
A bidirectional insulated DC/DC converter narrows a pulse width of an AC fundamental wave voltage corresponding to a higher DC voltage of two DC voltages, to...
US-1,004,4280 DC/DC converter
A DC/DC converter includes: duty command calculation units for calculating duty command values for first, second, third, and fourth switching elements on the...
US-1,004,4279 Multi-output power converter with phase-shift control
A multi-output power conversion circuit employing phase-shift control, receiving at the input a DC voltage and supplying at the output a plurality of...
US-1,004,4278 Power conversion device
This power conversion device includes a rectification circuit, a reactor, an inverter circuit, and an isolation transformer. The inverter circuit is composed of...
US-1,004,4277 Regulation of the power supply voltage for a flyback converter controller
A switching power converter is provided that includes a detector to detect whether a controller power supply voltage has fallen below a threshold voltage during...
US-1,004,4276 Phase-cut pre-regulator and power supply comprising the same
A power supply includes a phase-cut pre-regulator. The phase-cut pre-regulator comprises a switching device connected between a line voltage and an input...
US-1,004,4275 Power delivery device and control method thereof
A power delivery device and a control method are shown. The power delivery device includes a power conversion circuit, a power factor correction circuit, and an...
US-1,004,4274 Protection circuit for power supply
A protection circuit for power supply is disclosed. The power supply includes a power conversion unit having a primary winding and a secondary winding. The...
US-1,004,4273 Multi-phase switching converter
A method and a circuit of operating a multi-phase switching converter is presented. The circuit contains a plurality of phase circuits. The method includes...
US-1,004,4272 Supply modulator including switched-mode power supplier and transmitting device including the same
A transmitting device including: a modem configured to generate a baseband signal and an envelope data corresponding to the baseband signal; a supply modulator...
US-1,004,4271 Methods and apparatus for DC-DC soft start
Methods and apparatus for DC-DC soft start are disclosed herein, an example DC-DC voltage converter includes at least two transistors to at least charge or...
US-1,004,4269 Switching converter with improved recovery time
A switching converter, which produces an output voltage, contains a switch operable between a first state for opposing a decrease in the output voltage and a...
US-1,004,4268 Devices and techniques for controlling voltage regulation
Devices and techniques for controlling voltage regulation are disclosed. A voltage regulation system may include one or more loads disposed on an integrated...
US-1,004,4267 Current emulation auto-calibration with peak-current servo
A peak-current sampling circuit, with current emulation auto-calibration, is disclosed, to create a current-mode control scheme, in a DC-DC switching converter,...
US-1,004,4266 Peak current servo
The proposed disclosure combines peak-mode monitoring with valley-mode control, in a Buck switching converter, by means of a peak-current sampling circuit, not...
US-1,004,4265 Switching converter control robust to ESL ripple
An object of the disclosure is to provide cancelling of the output voltage deviation in a switching converter, caused by Equivalent Series Inductance (ESL) of...
US-1,004,4264 Microcontroller with average current measurement circuit using voltage-to-current converters
The average of a complex waveform measured over a time period may be determined by first converting the complex waveform to a voltage, then converting this...
US-1,004,4263 Using PMOS power switch in a combination switching and linear regulator
A P-MOS transistor may be used as either a switch in a DC-DC converter or as a pass transistor of a linear regulator. When a supply voltage is above a certain...
US-1,004,4261 Power supply device
A DC power supply circuit outputs an output voltage, which varies with an input voltage. The output voltage therefore occasionally deviates from a normal output...
US-1,004,4260 Charge pump circuit and voltage generating device including the same
A charge pump circuit may include: input units suitable for receiving a first input pulse signals and outputting second input pulse signals that are out of...
US-1,004,4259 Low power DC-DC converter
A DC-DC converter comprises an oscillator and a charge pump, to ensure operation at low voltage. The oscillator comprises one or more source degenerated...
US-1,004,4258 Active snubber
The present invention generally relates to a switching cell for a phase leg of a power converter and a method of controlling a power converter to drive a load,...
US-1,004,4257 Methods and apparatus to provide adaptive electromagnetic interference control in a power converter
Methods and apparatus for providing adaptive electromagnetic interference control in a power converter are disclosed. An example apparatus includes a current...
US-1,004,4256 Reducing a drop in a residual supply-signal level on start up or restart of a power supply
In an embodiment, a method includes generating a pulse-width-modulated signal having a duty cycle, and isolating a power-supply output node in response to the...
US-1,004,4255 Multiphase power supply and phase control
A multi-phase power supply circuit includes at least a first phase and a second phase (such as semi-resonant DC-DC power converter circuits), each of which...
US-1,004,4254 Systems and methods for regulating output currents of power conversion systems
Systems and methods are provided for regulating a power conversion system. An example system controller includes a first controller terminal and a second...
US-1,004,4253 Levitated-micro manipulator system
A system including a first circuit substrate having conductive traces in layers of the first substrate, the first substrate having a first diamagnetic layer, a...
US-1,004,4252 Electromagnetic actuator structure and anchoring assembly
An electromagnetic actuator assembly for moving heavy loads and running on electromagnetic energy has at least one piston providing movement of heavy loads. Two...
US-1,004,4251 Linear motor
An object is to provide a linear motor in which even when the overall length of the linear motor is long, the amount of magnets to be employed does not increase...
US-1,004,4250 Armature, method for winding armature coil, and DC motor
An armature includes an armature core, teeth, a commutator, concentrated winding wires, and distributed winding wires. Each of the teeth includes a first branch...
US-1,004,4249 Rotary electric machine
The present invention relates to a rotary electric machine formed by a stator assembly and a rotor assembly arranged such that they rotate relatively with...
US-1,004,4248 Electric drive apparatus and electric power steering apparatus
In an electric driving apparatus and an electric power steering apparatus, an electronic control assembly is divided into a power-supply circuit unit mounted on...
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