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A current limiter for Class-D amplifiers measures and stores a position of an over-current event. By comparing the stored position, output signals can be...
In a protection device of a current amplifier circuit, to protect the current amplifier circuit against more high-speed operation than recovery time of a relay...
Inverter type power amplifier
The present disclosure relates to an inverter type power amplifier. An exemplary embodiment of the present disclosure provides an inverter type power amplifier...
Pulse shaping biasing circuitry
Pulse shaping biasing circuitry includes square wave generator circuitry and inverse ramp signal generator circuitry. The square wave generator circuitry is...
Multi-stage amplifier with cascode stage and DC bias regulator
A multi-stage amplifier having a first amplifier stage comprising: a pair of transistors arranged in a cascade amplifier arrangement; and an isolation circuit;...
Power amplifier modules including bipolar transistor with grading and
related systems, devices, and methods
One aspect of this disclosure is a power amplifier module that includes a first die including a power amplifier and a passive component, the power amplifier...
Quadrature mixer arrangement
A quadrature mixer arrangement is disclosed, which is adapted to translate an input signal by a translation frequency. The mixer arrangement is operated at a...
Active ring mixer
An active ring mixer circuit for use in a receive or transmit channel of an RF radio. The circuit comprises plural transistor pairs arranged in a ring and...
Device for connecting two pieces of equipment via an Ethernet link, and a
docking station for such a piece of...
A connection device for connecting a first piece of electronic equipment to a second piece of electronic equipment, the device comprising two Ethernet type...
Method and apparatus for synthesizing signals with phase continuous and
phase coherent transitions
A direct digital synthesizer (DDS) includes a phase increment calculator that determines a phase increment for a selected frequency; a phase accumulator that...
A crystal oscillator has characteristics in that reduction in oscillation margin makes the crystal oscillator less likely to oscillate, with the result that an...
Apparatus and method of fine capacitance tuning for high resolution
digitally controlled oscillator
An apparatus and a method are provided. The apparatus includes a first capacitor, including a first end and a second end; a second capacitor, including a first...
Power oscillator apparatus with transformer-based power combining
An oscillator circuit includes first and second oscillators arranged in a series configuration between a supply voltage node and a reference voltage node. The...
Zilinx : the 11 less green technology for FPIC of smart window
The 11Less Green Technology are Noiseless Field Programmable Integrated Circuit FPIC, Curtainless Window, Bladeless Turbo Fan, Brakeless Vehicle, Sawless,...
Solar cell module efficacy monitoring system and monitoring method
A solar cell module efficacy monitoring system includes a reference module which includes a solar power generation module and is to be maintained in a clean...
Portable solar panel tracking device
A portable self-contained solar energy generation platform for tracking a source of solar energy and automatically maintaining optimum solar collection panel...
An object of the present invention is to achieve stable inverter control by means of current detection using one current sensor in all of periods in which...
Control circuit and method
In accordance with an embodiment, an actuator control circuit includes a driver circuit connected to a ringing characteristic determination circuit. A signal...
Circuits and methods for driving eccentric rotating mass motors
Circuits and methods for driving ERM motors are disclosed herein. An embodiment of the circuit includes an input, wherein an input signal is receivable at the...
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...
Method and apparatus for auto-tuning an electric machine current regulator
In one example embodiment, a motor control unit includes a processor configured to tune a current regulator regulating a supply of electrical current to an...
System and method for controlling a power generation system based on a
detected islanding event
In one aspect, a method for controlling the operation of a power generation system configured to supply power to an electrical grid may generally include...
Method for driving emergency generator using energy storage system
The present invention relates to a method for driving an emergency generator using an energy storage system in which, when the power of an emergency generator...
Power conversion apparatus and electric power steering apparatus having
A power conversion apparatus includes: an inverter unit having high and low potential-side switching elements corresponding to each phase of a winding of a...
Electric motor signature reduction system
A method and apparatus for controlling a group of electric motors. A controller is configured to identify a group of switching frequencies for a desired...
Control device of electric sealed compressor, electric sealed compressor
apparatus, and home appliance...
A control device (100) of an electric sealed compressor of the present invention comprises a power converter (30) which supplies electric power to an electric...
Bonding method, mounting table and substrate processing apparatus
A distance between the surface of the base member and the electrostatic chuck having the heater pattern formed on a bottom surface thereof can be uniformized. A...
Actuator drive device
An actuator drive device is configured to drive an actuator. The actuator drive device includes a storage section for storing a drive condition of the actuator,...
Electronic device, electronic apparatus, and method of manufacturing
An electronic device includes a first base body, a second base body, a third base body held between the first base body and the second base body, a first...
Capacitive micromachined ultrasonic transducer (CMUT) device with
through-substrate via (TSV)
A Capacitive Micromachined Ultrasonic Transducer (CMUT) device includes at least one CMUT cell including a first substrate having a top side including a...
Three-level power converter and power unit thereof
Provided are a three-level power converter and a power unit thereof. The power unit includes a power switch module and a laminated busbar structure. The power...
Rotary electric machine driving device
A rotary electric machine driving device including: an inverter that is electrically interposed between a direct-current power supply and the rotary electric...
Method and system for power conversion
A method and system for a control circuit are provided. The circuit includes an integrating counter coupled to a process wherein the integrating counter is...
Power converter that delays state changes of on/off pulses and control
Aspects of the invention can provide a control method of a power converter that is capable of preventing increase of electromagnetic noise that are caused by...
Power supply device for supplying power to a load by combining a secondary
battery and a capacitor
A power supply device for supplying power to a load by combining a secondary battery and a capacitor connected in parallel to the secondary battery includes an...
Control method and control system of three level inverter
A three-phase inverter includes three-level inverters connected in parallel to one another, each being capable of outputting a DC high voltage, DC middle...
Power converter and matrix converter
The number of ICs used for a power converter is reduced. The power converter includes n power transistors each having an emitter terminal or a source terminal...
Photovoltaic power conditioning units
We describe a photovoltaic (PV) panel system comprising a PV panel with multiple sub-strings of connected solar cells in combination with a power conditioning...
Power semiconductor module, power converting apparatus and railway car
A power semiconductor module applied to a power converting apparatus for a railway car includes an element pair formed by connecting an IGBT and an SiC-FWD in...
Method and system for a gas tube switch-based voltage source high voltage
direct current transmission system
A voltage source converter based high-voltage direct-current (HVDC) transmission system includes a voltage source converter (VSC)-based power converter channel....
Multilevel converter systems and methods with reduced common mode voltage
Multilevel converters and space vector modulation operating methods are presented in which fewer than all possible switching states are employed for space...
An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is...
Multi-level DC-DC converter with galvanic isolation and adaptive
A multi-level DC-DC converter includes an input side to receive a DC power having an input voltage and current, an output side to provide power to a load at a...
Adaptive reference voltage for switching power converters
A switching power converter is provided that detects an activity signal generated in response to load activity using an adaptively-declining threshold.
Control method and device for quasi-resonant high-power-factor flyback
The present disclosure is directed to a high power factor quasi resonant converter. The converter converts an AC power line input to a DC output to power a...
Method of forming a power supply controller and structure therefor
In one embodiment, a power supply controller may be configured to form a status signal that is representative of a secondary current by substantially removing a...
Acceleration of output energy provision for a load during start-up of a
switching power converter
An electronic system and method include a controller to operate in a start-up mode to accelerate driving a load to an operating voltage and then operates in a...
Stacked power converter assembly
A stacked magnetic power converter assembly includes a plurality of converter modules disposed in a stacked arrangement with respect to one another to define a...
Staggered parallel three-level DC/DC converter and AC/DC converter
A staggered parallel three-level DC/DC converter and an AC/DC converter includes: at least one input power supply, N-phase three-level DC/DC circuits, N...
Power controller with multi-function pin and power supply using the same
Power supplies and power controllers are disclosed. A disclosed power supply has a power controller, a power switch, an auxiliary winding, a first circuit and a...