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Tunable RF filter paths for tunable RF filter structures
This disclosure relates generally to radio frequency (RF) filter structures. In one embodiment, an RF filter structure includes a first resonator and a second...
Techniques for distortion reducing multi-band compressor with timbre
Distortion reducing multi-band compressor with timbre preservation is provided. Timbre preservation is achieved by determining a time-varying threshold in each...
Electronic device and method for reproducing audio signals
In a method of reproducing audio signals using an electronic device, the electronic device decodes an audio file to generate original digital audio signals, and...
Audio settings based on environment
Embodiments described herein may involve dynamically adjusting the equalization of a playback device based on the environment in which the playback device is...
An amplifier circuit has: a main amplifier connected between an input terminal and an output terminal, the main amplifier amplifying an input signal input to...
Variable gain transimpedance amplifier
Embodiments of variable gain transimpedance amplifiers are described. In an embodiment, the variable gain transimpedance amplifier may include an amplifier...
Audio device and audio utilization method having haptic compensation
The present invention discloses an audio device having haptic compensation function capable of compensating a haptic effect according to a power measuring...
Precision, high voltage, low power differential input stage with static
and dynamic gate protection
A precision, high voltage, low power differential input stage including static and dynamic gate protection is disclosed herein. The differential input stage...
A transistor has variation in a threshold voltage or mobility due to accumulation of factors such as variation in a gate insulating film which is caused by a...
Method and system for a pseudo-differential low-noise amplifier at Ku-band
Methods and systems for a pseudo-differential low-noise amplifier at Ku-band may comprise a low-noise amplifier (LNA) integrated on a semiconductor die, where...
Circuits and methods related to power amplifier efficiency based on
Circuits and methods related to power amplifier efficiency based on multi-harmonic approximation. In some embodiments, an output network circuit can be provided...
Process-compensated HBT power amplifier bias circuits and methods
The present disclosure relates to a system for biasing a power amplifier. The system can include a first die that includes a power amplifier circuit and a...
Amplifiers and related integrated circuits
Apparatus are provided for amplifier systems and related integrated circuits are provided. An exemplary integrated circuit includes a main amplifier...
Hot carrier injection compensation
Methods and devices are described for compensating an effect of aging due to, for example, hot carrier injection, or other device degradation mechanisms...
Symmetric linear equalization circuit with increased gain
Circuits providing low noise amplification with continuous time linear equalization are described. An exemplary circuit includes four amplification elements,...
A two-stage RF amplifier is provided. The first stage is a common-emitter transistor arrangement with a purely reactive degeneration impedance and an output...
Systems and methods for minimizing noise in an amplifier
An amplifier may include a plurality of stages, wherein each stage may have an amplifier stage output configured to generate an amplifier output signal and a...
Circuits and methods for biasing a power amplifier
The present disclosure includes circuits and methods for power amplifiers. In one embodiment, a main amplifier stage and peaking amplifier stage of a power...
Low power multi-stacked power amplifier
An apparatus includes a plurality of stacked transistors in a multi-stacked power amplifier. At least one transistor of the plurality of stacked transistors is...
Parametric oscillator and method for generating ultra-short pulses
The invention relates to a parametric oscillator (1) for generating ultra-short pulses. The system (1) comprises a resonator (10) having an optical axis (11),...
Method and apparatus for in-situ health monitoring of solar cells in space
Embodiments of the present invention describe an apparatus including an oscillator, a ramp generator, and an inverter. The oscillator is configured to generate...
Motor control device, image forming apparatus, and motor control method
A motor control device includes a measuring unit configured to output a measurement value corresponding to a rotation speed of a motor; and a control unit...
Method and arrangement for operating a pump
A method and arrangement for operating a pump system are disclosed, the pump system including a pump arranged to be rotated with an AC motor, an inverter, the...
Synchronous machine control apparatus
A synchronous machine control apparatus for correcting a rotor position error that is a difference between a rotor position of a synchronous machine and a rotor...
Control device of AC motor
A control device of a three-phase AC motor includes: an inverter for driving the motor; a current sensor for sensing a sensor phase current of the motor; and a...
Apparatus for controlling rotary machine
In a control apparatus, a target harmonic current obtainer obtains, according to a phase current flowing through at least one phase winding of a stator of a...
Motor interface controller having an integrated power supply
A motor assembly broadly includes a motor, a motor controller, and an interface controller having an integrated power supply. The integrated power supply...
Motor driver and a method of operating thereof
A driver circuit for driving an electrical motor coil is provided which comprises combined switched inductance boost voltage converter circuitry and switched...
Methods and apparatuses for controlling torques of permanent magnet
A method of controlling torque of a permanent magnet synchronous motor (PMSM) by using a speed-torque lookup table may include: receiving a current...
Method and apparatus for controlling an electric machine in a six-step
An inverter electrically operatively connects to a multi-phase electric machine, and a method for controlling the inverter includes executing a six-step mode to...
Method and control circuit for controlling a brushless electric motor
The invention refers to a method for controlling a brushless, electronically commutated electric motor, a main AC voltage being rectified into an intermediate...
Switch type DC electric machine having auxiliary excitation winding and
conduction ring and brush
The present invention provides an auxiliary excitation winding set to be installed at the rotary part of the electric machine (104) composed of a rotary part of...
Piezoelectric energy harvester device with frequency offset vibrational
The present invention relates to an energy harvester device comprising a plurality of elongate resonator beams. The resonator beams include a piezoelectric...
Dielectric elastomer powered boat and electricity generator and associated
A system is disclosed in which ocean wave power compresses smart electro-active polymers (EAP) material. Dielectric elastomers (DE) convert ocean wave power...
Energy harvesting device having self-powered touch sensor
Provided is an energy harvesting device having a self-powered touch sensor so that the energy harvesting device is capable of sensing pressure due to an...
Controlled resonance in electrical power devices
Systems for controlled resonance in electrical power devices are described. A programmed signal processor generates output control signals from input electrical...
A three-level inverter circuit includes first to fourth front-stage switches connected in series, and a floating capacitor connected between a connection point...
A multilevel inverter having a configuration adequate to enhance efficiency while reducing conduction loss is disclosed, the multilevel inverter including a...
Switching power supply circuit
Provided is a switching power supply circuit including an output transistor arranged to be turned on and off to generate a desired output voltage from a...
Systems and methods for enhanced operation and protection of power
An electrical system includes an AC power source and a power converter including at least one first terminal and at least one second terminal. The first...
AC/DC power conversion system and method of manufacture of same
A power converter has a transformer having three primary windings configured to receive respective phases of a three-phase alternating current (AC) input signal...
Light emitting diode (LED) driver having direct replacement capabilities
A driver circuit for powering a load is disclosed. The driver circuit includes an input for connection to a ballast, a rectifier, a switch, and a fault circuit....
DC power transmission systems and method of assembling the same
A DC power transmission system is configured to generate an electric field including components substantially constant with respect to time and varying with...
Electric power converter
An electric power converter is provided with: a power semiconductor module, which has a power semiconductor element that converts a direct current into an...
Modular power inverter with software control
A power inverter is provided comprising: a control board comprising: a processor that generates an AC waveform from a pulse width modulation (PWM) signal...
Voltage adapter systems for use in an appliance
Voltage adapter systems for use in an appliance are provided. An exemplary voltage adapter system can include a TRIAC. The exemplary voltage adapter system can...
Electric power conversion system and electric power conversion method for
stopping power upon a failure
An electric power conversion system includes: a primary circuit including a first port, a second port and a primary electric power conversion unit; and a...
Forward-flyback DC-DC converter using resonant LC output circuit
A forward-flyback DC-DC converter topology includes a transformer, a main switch, a clamp circuit, first and second rectifying switches, an LC resonant circuit...
Power estimation device using coaxial winding transformer
Disclosed is a power estimation device using a coaxial winding transformer which includes: a switching control unit that generates primary current by performing...
DC bus voltage measurement circuit
A voltage measuring device includes an input configured to be coupled to a secondary of an inductive coupling of a DC to DC voltage converter. A switch coupled...