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Patent # Description
US-9,787,245 Motor control apparatus having protection operation unit, and machine learning apparatus and method thereof
A machine learning apparatus learns conditions associated with power failure on the side of an AC power supply in a motor control apparatus which converts AC...
US-9,787,244 Air conditioner
An air conditioner includes an inverter circuit, a control unit that controls the inverter circuit, a compressor having a protection device (a pressure switch),...
US-9,787,243 Controller for a brushless direct-current motor
A controller for a brushless direct-current motor having an upstream converter, which has a half-bridge having a pair of switching means for each phase winding...
US-9,787,242 Motor control device for controlling motor in dependence on motor's temperature and sheet conveying device
Temperature-dependent motor control device, including: a motor controller configured to switch a motor control state among an activated state in which the motor...
US-9,787,241 Motor driving device for controlling motor with pulse signal
A motor driving device includes a control unit configured to control a motor by obtaining a driving current of the motor, and generating a PWM signal for...
US-9,787,240 Controller and control method for motor
To provide a controller and a control method for a motor equipped with a plurality of energization systems each including a coil set of coils corresponding to a...
US-9,787,239 Divided phase AC synchronous motor controller
A circuit includes phase windings, a direct current (DC) power supply, and a power switch circuit. The power switch circuit includes at least one power switch...
US-9,787,238 Four-phase switched reluctance motor torque ripple three-level suppression method
A four-phase switched reluctance motor torque ripple three-level suppression method. A first set of torque thresholds is set in rotor position interval...
US-9,787,237 Fault tolerant control system for multi-phase permanent magnet assisted synchronous reluctance motors
A fault tolerant control system for a multi-phase permanent magnet assisted synchronous reluctance motor utilizes vector control to provide safe operation under...
US-9,787,236 System and method for optimizing flux regulation in electric motors
A system and method for dynamically optimizing flux levels in electric motors based on estimated torque. Motor parameters and motor equations are used to...
US-9,787,235 Method and device for operating a generator
A method for operating a generator for an internal combustion engine of a vehicle having a starting operating mode and a start-stop operating mode, a torque of...
US-9,787,234 Drive controller of instrument
A drive controller of an instrument controls a stepping motor to rotate a pointer of the instrument attached to a rotation shaft of the stepping motor, the...
US-9,787,233 Movable object driving device and game machine
A movable body drive device that controls a drive unit configured to drive a movable body arranged on a game machine has a communication unit that receives a...
US-9,787,232 Apparatus and method for controlling a ripple current sensing motor
Provided are an apparatus and method for controlling a ripple current sensing motor. An apparatus for controlling a ripple current sensing motor may include a...
US-9,787,231 Motor driving device and control method of motor driving device
A motor driving device includes a control unit which outputs a pre-driving signal to control a motor based on command information of an input target number of...
US-9,787,230 Synchronous motor control device for electric automobile
A synchronous motor control device for an electric vehicle is provided which is able to reduce torque ripple through simple calculation and is excellent in...
US-9,787,229 Method of operating a single-stranded electronically commutated motor from a DC voltage source, and motor for...
An electronically commutated motor is operated from a DC voltage source (U.sub.B), e.g. from a DC link circuit (46). The motor has a permanent-magnet rotor (28)...
US-9,787,228 Electrical controller for machines
An electrical controller for electric rotating machines is provided. A control system for electric rotating machines transmits a controlled quantity of current...
US-9,787,227 Controlled inductive sense system
An apparatus includes a driver circuit and a motor control circuit. The driver receives first and second supply voltages and a control signal, and generates a...
US-9,787,226 Alternating current electric system and control method thereof
When the current flowing through each electric terminal of an AC motor 21 reaches the vicinity of zero, an operation putting the electric terminals of the AC...
US-9,787,225 Hybrid electric device
A device includes a housing configured with a working element and a motor configured for urging motion of the working element. The device further includes a...
US-9,787,224 Motor control apparatus equipped with protection operation command unit
A motor control apparatus includes a rectifier which converts AC of a power source to DC, an inverter which converts DC to AC for a motor, a voltage amplitude...
US-9,787,223 Motor control apparatus, image forming apparatus, and motor control method
A motor control apparatus controls a start/stop operation of a motor and includes a counting unit that performs a count-up or count-down operation from a...
US-9,787,222 Electrostatic attraction apparatus, electrostatic chuck and cooling treatment apparatus
Provided is an electrostatic attraction apparatus in which a first insulating layer is formed on a base in an electrostatic chuck. A first portion of the first...
US-9,787,221 Energy generating device, and method of manufacturing the same
An energy generating device and a method of manufacturing the same are provided. The energy generating device includes a first electrode, a metal layer,...
US-9,787,220 Energy harvester
An energy harvester comprising a mass that is subjectable to environmental forces for bringing it into the status of a moving mass, and means linked to the mass...
US-9,787,219 Modulation policy for modular multi-level converter
A modulation policy for a modular multi-level convertor, determining a switching state of each submodule by combining the current direction of each bridge arm...
US-9,787,218 Capacitive load driving circuit
A driving circuit is a circuit selectively outputting one of a staircase wave and a square wave from an output terminal, to drive a capacitive load, and...
US-9,787,217 Power conversion circuit and power conversion system
A power converter, includes a first terminal and a second terminal which are connected to a direct current; a third terminal connected to an alternating...
US-9,787,216 Full-wave rectifier
A full-wave rectifier is disclosed. In one embodiment the full-wave rectifier includes two input paths configured to receive an alternating input voltage, two...
US-9,787,215 Power source device
A power supply device includes a board that includes an input terminal and an output terminal, and converters disposed on the board. The converters are...
US-9,787,214 Power conversion device with overvoltage suppression
Even when an overvoltage suppression circuit is not formed due to failure of an overvoltage suppression switch, overvoltage application to semiconductors and a...
US-9,787,213 Power cell bypass method and apparatus for multilevel inverter
Multilevel inverters, power cells and bypass methods are presented in which a power cell switching circuit is selectively disconnected from the power cell...
US-9,787,212 Motor drive with silicon carbide MOSFET switches
Motor drive power conversion systems are provided including a rectifier and a switching inverter, wherein the switching devices of the rectifier, the inverter...
US-9,787,211 Power converter for AC mains
An AC power converter converts power from an AC power source to an AC load. A DC power holding source is coupled to an input half-bridge switch, a common...
US-9,787,210 Precharging apparatus and power converter
Precharging systems and methods are presented for precharging a DC bus circuit in a power conversion system, in which precharging current is connected through a...
US-9,787,209 Modular three phase on-line ups
An uninterruptible power supply system (UPS) includes an interconnect circuit configured to receive three-phase AC input power from an AC power source and a...
US-9,787,208 Single phase AC chopper for high current control of complex and simple loads
A testing device is provided. The testing device comprises a processor and a switching AC to AC power converter that has no DC link. The processor is configured...
US-9,787,207 Electric machine and use thereof
An electric machine is selectively operated as a transformer for AC voltage operation or as a throttle system for DC voltage operation. A transformer core has...
US-9,787,206 Synchronous rectification for flyback converter
A flyback converter is described that includes a synchronous rectification integrated circuit (SRIC). The SRIC is configured to determine an actual turn-on time...
US-9,787,205 Power source device and image forming apparatus
A power source device includes a transformer, a first switching element and a second switching element, a resonance capacitor, and a switch. One end of the...
US-9,787,204 Switching power supply device
A drive control circuit for a switching power supply device. The drive control circuit includes an output control circuit configured to generate an output...
US-9,787,203 Power source management method and power source
A power source management method and a power source are provided. The method includes: comparing a feedforward control signal with a feedback control signal by...
US-9,787,202 Method for regulating an output voltage using a converter configured to operate in a critical conduction mode...
In accordance with an embodiment, a converter includes a power factor controller that varies the switching frequency of a switching transistor in accordance...
US-9,787,201 Bidirectional isolated multi-level DC-DC converter and method thereof
A DC-DC converter is operated in a boost mode by operating a plurality of low-voltage side switches with a first fixed duty cycle (greater than 0.5), with...
US-9,787,200 Resonant converters with synchronous rectifier feedback
A method comprises detecting a signal representing a drain-to-source voltage of a switch of a synchronous rectifier of an inductor-inductor-capacitor (LLC)...
US-9,787,199 Power conversion device to control power distribution of input power to multiple outputs
The power reception amount of input power from an AC power supply is controlled through a first switching circuit. DC voltage is controlled through a second...
US-9,787,198 Systems and methods with prediction mechanisms for synchronization rectifier controllers
System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller...
US-9,787,197 Switching power supply unit
A switching power supply unit includes input terminals, output terminals, first to third primary windings and first to third secondary windings, a switching...
US-9,787,196 Frequency jittering control circuit and the method thereof
A control method of frequency jittering with a switching mode power supply, comprising: turning on and off a power switch of the switching mode power supply...
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