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Dynamically Reconfigurable Motors and Generators and Systems
A device comprises a motor/generator having an air gap and a plurality of windings, a plurality of power converter groups, and a control system. The windings...
Hybrid Hard Chopping and Soft Chopping Current Regulation
A method of regulating a phase current of an electric motor is provided. The method may include selectively enabling one or more switches of each phase of the...
LINEAR VIBRATION MODULES AND LINEAR-RESONANT VIBRATION MODULES
The current application is directed to various types of linear vibrational modules, including linear-resonant vibration modules that can be incorporated in a...
Power Angle Calculation for Alternator Controller
In one embodiment, a generator includes a rotor configured to rotate in cooperation with a stator to generate electrical power. A sensor, which is supported by...
COGENERATION SYSTEM CONFIGURED TO BE INSTALLED INTO AN EXISTING BOILER
PLANT/ EMERGENCY GENERATOR INSTALLATION...
At least one embodiment relates to a cogeneration system configured to be coupled to an electrical input of a building and configured to be coupled to a...
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...
USE OF AN ELECTRONIC DEVICE FOR OPERATING A DC MOTOR TO CONTROL TWO PEAK
AND HOLD LOADS
Electronic device (1), capable of operating a DC motor, including an H bridge with an upper left-hand switch (R1), an upper right-hand switch (R2), a lower...
APPARATUS FOR CORRECTING OFFSET OF CURRENT SENSOR
Disclosed are embodiments of an apparatus for correcting an offset of a current sensor. The apparatus includes an inverter, a detector, and a RMS calculator,...
POWER TOOL WITH AUTOMATIC FEATHERING MODE
A power tool includes a housing, a motor disposed in the housing, an output spindle configured to be driven by the motor, an input switch, and a controller...
DRIVE CIRCUIT FOR BRUSHLESS DC MOTOR
To provide a brushless DC motor drive circuit operating with low electric power without a hall element, etc., and to provide a drive circuit for brushless DC...
METHOD OF ESTIMATING ROTATIONAL POSITION OF MOTOR, AND CONTROL APPARATUS
A method of estimating a rotational position of a motor having saliency includes the steps of a) superimposing, on a drive voltage to rotate a rotating portion...
METHOD OF ESTIMATING ROTATIONAL POSITION OF MOTOR, AND CONTROL APPARATUS
A method of estimating a rotational position of a motor having saliency, the method including the steps of a) superimposing, on a drive voltage for the motor,...
ROTATION ANGLE CALCULATION DEVICE
An ECU has a function of calculating a rotation angle, which is used for torque control, based on amplitude-modulated signals SIN and COS outputted from an...
ELECTROMECHANICAL ASSEMBLY CONTROLLED BY SENSED VOLTAGE
An electromechanical assembly is provided controlled by voltage across a motor or with an electronic system. The electromechanical assembly includes a control...
SYSTEMS, METHODS AND DEVICES FOR VECTOR CONTROL OF INDUCTION MACHINES
USING ARTIFICIAL NEURAL NETWORKS
Described herein is a neural network-based vector control method for the induction motor. The disclosure includes an approach to implement optimal vector...
DC SYNCHRONOUS MACHINE
An assembly for a direct current (DC) synchronous machine, according to an exemplary aspect of the present disclosure includes, among other things, a...
A backup controller which is capable of suppressing an unintended operation performed by a motor which rotates in both of a normal rotation direction and a...
Piezoelectric Generator for Hydraulic Systems
The present disclosure generally relates to electrical power generation from a piezoelectric material. A piezoelectric power generator assembly is disclosed...
MULTI-PHASE EAP SYSTEM AND METHOD FOR CONTROLLING SUCH A SYSTEM
Method including a plurality of EAP based sections, a power source/sink unit and a controller. Each EAP based section includes an electronic charge/discharge...
VIBRATION WAVE MOTOR
A thin vibration wave motor is provided by thinning a friction member of the vibration wave motor. In a vibration wave motor including: a vibrator including a...
METHOD FOR DETECTING ISLANDING IN GRID CONNECTED POWER GENERATION SYSTEMS
AND RELATED DC/AC CONVERTER APPARATUS
Method for detecting an islanding condition of a grid connected energy conversion system and related DC/AC converter apparatus, adapted to optimize performance...
Multi-Vector Outphasing DC to AC Converter and Method
DC to AC multi-vector, multi module switch mode converter capable of producing a fully regulated quazi-sinusoidal output voltage with cancelled N odd harmonics...
AC-DC CONVERTER WITH INRUSH CURRENT LIMITATION
An AC/DC converter includes: a first terminal and a second terminal for receiving an AC voltage and a third terminal and a fourth terminal for supplying a DC...
RECTIFYING BRIDGE CONTROL CIRCUIT
An AC/DC converter includes a first terminal and a second terminal to receive an AC voltage and a third terminal and a fourth terminal to deliver a DC voltage....
Method and device for controlling start of switching rectifier, and
The present disclosure provides a method for controlling soft start of a switching rectifier, which comprises: acquiring an external environmental parameter of...
RECONFIGURABLE POWER CONVERTER
A configurable power converter includes an interchangeable face plate mounted to a chassis and circuit terminals mounted to the interchangeable face plate....
The present disclosure relates to a multi-level inverter capable of performing a bypass operation without adding any separate module. The multi-level inverter...
CURRENT REGULATOR WITH FEEDBACK CIRCUIT FOR AC COUPLING
A current regulator for regulating alternating current (AC) flow to a load device is provided. The current regulator can include an AC coupling device that can...
POWER SUPPLY DEVICE, AND METHOD OF CONTROLLING POWER SUPPLY DEVICE
A storage (80) stores a first drooping characteristic of a rated current Ioc1, and a second drooping characteristic of an allowable current value Ico2 that is...
AC/DC CONVERTER WITH NEUTRAL VOLTAGE LIFT CAPACITOR
Some embodiments are directed to an AC/DC converter comprising a first AC terminal for connection to a first AC circuit terminal, a neutral line terminal for...
POWER SUPPLY SYSTEM
In a power supply system, a single photocoupler can be used for two types of signal transmission. A switching power supply includes a first switching element...
PULSE-WIDTH MODULATION (PWM) CONTROLLING APPARATUS FOR FLYBACK CONVERTER
A Pulse-Width Modulation (PWM) controlling apparatus includes a valley detector configured to detect a valley of an auxiliary winding voltage of a flyback...
Universal Input Voltage DC-DC Converter Employing Low Voltage Capacitor
A power supply for generating DC voltage and current based on an AC power input (Vi), which power supply comprises at least one rectifier (D1) adapted to be...
FLYBACK AC-DC CONVERSION DEVICE AND CONVERSION METHOD THEREOF
A flyback AC-DC conversion device and the conversion method thereof are provided. The device includes a rectifier circuit (R), an electronic switch (SW) and a...
POWER CONVERTER WITH WINDING COMMUNICATION
A power converter includes an energy transfer element, a switched element, a secondary control circuit, a primary switching, and a primary control circuit. The...
Phase Current Estimation for Switching Power Converters
A phase current estimator for a switching power converter includes analog circuitry for generating a phase current estimate error by comparing a phase current...
PHOTOVOLTAIC INVERTER COMPRISING AN UPSTREAM DC/DC CONVERTER AND
TEMPERATURE REGULATION OF THE POWER SEMICONDUCTORS
A method and corresponding system for operating an inverter includes setting an input voltage (U.sub.PV) of the inverter by an input-side DC-DC converter...
DYNAMIC PHASE CHANGE MECHANISM IN MULTI-PHASE CONVERTERS
The disclosure provides a multi-phase converter. The multi-phase converter includes a controller and one or more switches. The one or more switches are coupled...
Zero-Voltage Switching Buck Converter and Control Circuit Therefor
A zero-voltage switching buck converter circuit and control circuit are provided. The buck converter circuit may include a first inductor, a smoothing...
ON-PERIOD SETTING CIRCUIT, POWER CONTROL IC, AND SWITCHING POWER SUPPLY
An ON-period setting circuit is provided in a fixed-ON-period switching power supply device that produces a desired output voltage from an input voltage by...
COMPENSATION CIRCUIT, COMMUTATION CELL AND POWER CONVERTER CONTROLLING
TURN-ON AND TURN-OFF OF A POWER...
The present disclosure relates to a compensation circuit for independently controlling turn-on and turn-off of a power electronic switch through a gate driver....
CONSTANT ON-TIME PULSE WIDTH CONTROL-BASED SCHEME USED IN VOLTAGE
A constant on-time pulse width control-based apparatus used in a voltage converter includes a comparator, a logic circuit, and a controller. The comparator is...
DRIVER FOR LOW EMISSION SWITCHING REGULATOR
A switching regulator includes circuitry for reducing conductive emissions caused when the regulators switch from one transistor switch to the other. The...
An AC to DC converter includes a plurality of rectifier circuits connected in series to an AC voltage source at an input side to collectively receive an output...
PULSE WIDTH MODULATOR FOR DC/DC CONVERTERS
A conventional single-ended, primary-inductance converter (SEPIC) has its switching frequency determined by a controller, which determines the duty cycle at...
Inverse Charge Current Mode (IQCM) Control for Power Converter
an amount of charge transferred by a power converter is estimated by developing a signal that is a combination of signals representing an output voltage of a...
A voltage converter is provided. The voltage converter includes a compensation circuit, a first comparator circuit, a first inductor, a first driver circuit,...
VOLTAGE SUPPLY CIRCUITS AND CONTROLLING METHODS THEREFOR
A voltage supply circuit is provided. The voltage supply circuit may operate at a first or second mode to generate an output voltage at an output node. The...
METHOD AND APPARATUS FOR COUPLING CANCELLATION
A DC to DC power converter includes a switching circuit and an LC filter configured to reduce parasitic inductance. The LC filter includes an inductor,...
ISOLATED AC-DC CONVERSION DEVICE AND CONVERSION METHOD THEREOF
An isolated AC-DC conversion device is provided, which include a rectifier circuit (10), an active power factor correction circuit (20), an isolated...