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Rectifier circuit for monitoring DC offset of a single-supply audio power
An audio power amplifier arrangement includes an audio power amplification integrated circuit having two loudspeaker outputs. A rectifier circuit includes a...
Systems, methods, and apparatus for a power amplifier module
Systems, methods, and apparatus are disclosed for wideband power amplification in a platform, such as an airplane. An amplifier module may include a first...
Self-oscillating class-D amplifier and self-oscillating frequency control
method for self-oscillating class-D...
A self-oscillation frequency varying element for varying the self-oscillation frequency of a self-oscillation loop of a self-oscillating class-D amplifier is...
Integrated directional coupler within an RF matching network
A directional coupler utilizes an inductive element of a power amplifier and a coupled conductive element. The inductive element of the power amplifier is a...
A bias circuit includes a first p-n junction element supplied with a current by a first current source connected to a low-voltage side of the first p-n junction...
Circuitry and methods for common-mode rejection calibration
Circuitry and methods are disclosed that may employ common mode calibration circuitry configured to at least partially calibrate out impedance differences or...
Power detector with overdrive detection
Aspects of this disclosure relate to protecting a circuit, such as an amplifier, from transient overdrive events and/or average overdrive events. In one...
Transimpedance pre-amplifier with improved bandwidth
A transimpedance pre-amplifier (TIA) with an improved bandwidth. In the TIA, a feedback circuit is added to a regulated cascode structure to be connected in...
Distortion cancellation for dual stage carrier-aggregation (CA) low noise
amplifier (LNA) non-linear second...
A device includes a main two-stage low noise amplifier (LNA) configured to amplify a carrier aggregation (CA) communication signal, the main two-stage LNA...
Differential current amplifier
A current amplifier is disclosed. The circuit has differential input and output and can be implemented in CMOS or bipolar integrated-circuit technologies. The...
Parallel correction amplifier
A power supply stage and a method of controlling the same comprising: a means for generating an intermediate supply signal in dependence on a reference signal...
Communications based adjustments of an offset capacitive voltage
A parallel amplifier and an offset capacitance voltage control loop are disclosed. The parallel amplifier has a parallel amplifier output, which is coupled to...
Method for class-B amplifier mismatch correction
A calibration solution for a power amplifier array comprising a plurality of amplifier cells is presented that improves the linearity and efficiency of the...
Envelope tracking circuits and methods with adaptive switching frequency
The present disclosure includes envelope tracking circuits and methods with adaptive switching frequency. In one embodiment, a circuit comprising an amplifier...
Multiple power supply input parallel amplifier based envelope tracking
A switch mode power supply converter and a parallel amplifier are disclosed. The switch mode power supply converter is coupled to a modulated power supply...
Microwave band booster rectifier circuit, and wireless tag device and
wireless tag system employing same
In order to implement novel utilization methods, implementation of a low power consumption and high sensitivity RF receiving system is desired. A microwave...
A terahertz wave oscillator that oscillates includes a negative resistance element, a resonator including a first conductor, a second conductor, and a...
A memristor-based oscillator can be fully implemented without any reactance element.
LC oscillator circuit with wide tuning range
In one example, an oscillator circuit includes: a master oscillator comprising a master LC tank coupled to a master active circuit, the master LC tank including...
System and method using temperature tracking for a controlled oscillator
A system using temperature tracking for a controlled oscillator (CO) is provided. The system includes at least one coarse tuning capacitor circuit including a...
Method and device for fully automatically selecting and packing
The disclosure relates to a method and to a device for fully automatically selecting and packing photovoltaic solar modules, for example, produced in mass...
Solar panel truss mounting systems and methods
An exemplary embodiment of the present invention provides a solar panel truss mounting system comprising a base and a truss assembly coupled to the base. The...
Lossless snubber drive for a permanent magnet synchronous motor
A loss-less snubber drive for a permanent magnet motor. The motor system includes a first motor phase with a primary winding and an auxiliary winding. A...
Apparatus for controlling induction motor
An apparatus for controlling an induction machine is disclosed, wherein a magnitude of a current outputted to the induction machine to an inverter is determined...
Unity power factor induction machine
A multi-phase voltage from a utility grid is applied to a first side of a plurality of open windings of a stator. A phase of the multi-phase voltage is...
Force feedback mechanism and related electronic device and operation
A force feedback mechanism disposed inside a casing for vibration balance of the casing is disclosed in the present invention. The force feedback mechanism...
Method of field weakening control of permanent magnet motor drivers
A method for field weakening control of a three phase permanent magnet AC motor in a VFD drive. The VFD drive calculates the three phase voltages to be supplied...
Self-commissioning procedure for inductance estimation in an electrical
A method of estimating inductances and flux linkages of an electrical machine supplied with drive currents via current regulators. Drive current values are...
Dynamic pulse-width modulation motor control and medical device
Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a sensor to...
Motor health monitoring and medical device incorporating same
Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a modulation...
Method and assembly for operating synchronous motors
A method is disclosed for operating a synchronous machine by way of a three-phase AC power controller, which is connected to a three-phase network. The...
Enhanced inductive sense using mutual inductance
Methods and apparatus for determining rotor position in a motor including a rotor and stator windings. The method includes measuring inductive sense values for...
Linear motor system
A linear motor system includes a stator, a mover, and a controller. The stator includes a plurality of armature coil units arranged so as to be spaced apart...
Processor, device, method and computer program to control an emergency
operation of a multi-phase rotating...
Embodiments relate to a processor for controlling an emergency operation of a multiphase induction machine upon an interruption of a first phase current of a...
Motor driving control device and control method of motor driving control
There is provided a motor driving control device including a state determining unit which determines whether a motor can perform a slow start operation based on...
Method and assembly for operating synchronous motors
A method is disclosed for operating a synchronous machine via a three-phase power controller including three semiconductor controllers and connected to a...
A method and apparatus generates kinetic and electrical energy using sound waves and is believed to be particularly useful in high efficiency motors and...
Electroactive polymer (EAP)-based rotary motion devices
Rotary motion devices (10) are provided. In one embodiment, the rotary motion devices (10) may comprise: a mass (12); a circumferential component (14); a...
Electrosurgical generator controller for regulation of electrosurgical
generator output power
An electrosurgical generator may reduce unintended tissue damage by improving regulation of output power. The electrosurgical generator may control the power...
Switched-mode power supply system and aircraft comprising such a system
An electric power supply system, comprising: a main switching cell (6) comprising a first main branch (14) and a second main branch (16) each including a main...
Energy recovery circuit for distributed power converters in solar cells
A method of operating an inverter device configured on a back plane of a solar module, the inverter device comprising an energy recovery circuit device coupled...
Scalable single-stage differential power converter
An embodiment of the invention is a scalable single stage differential power converter. The inverter can be implemented in signal, split and multi-phases. A...
Inverter system enabling self-configuration
A method of configuring an installed energy harvesting device to comply with a local grid connection standard is provided. The method identifies a local grid...
Semiconductor device which generates a DC power supply from an AC power
A semiconductor device comprising a rectifier circuit, wherein the rectifier circuit includes first and second input wires to which AC signals whose phases are...
Ultra high voltage regulator
An ultra high voltage regulator for converting includes a rectifying circuit, a first transistor, a second transistor, an output capacitor, a first resistor, a...
Current generator and method for generating current pulses
A method for generating current pulses and a current generator having a plurality of secondary stages. Each secondary stage has a DC voltage source and a...
System and method for converting a signal while maintaining electrical
A detection circuit for converting a control signal while maintaining electrical isolation between a first ground and a second ground. The detection circuit...
A semiconductor device includes: a first output unit configured to output a first phase; a second output unit configured to output a second phase different from...
HVDC system and method to control a voltage source converter in a HVDC
A method to control a voltage source converter (CON1; CON2) in a HVDC system comprises the step of controlling a frequency and a voltage amplitude of an AC...
Power converter and method for controlling same
A power converter 100 includes a DC capacitor C, semiconductor switch groups each of which includes semiconductor switches connected in series to each other,...