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Resonator device including electrode with buried temperature compensating
An acoustic resonator device includes a composite first electrode on a substrate, a piezoelectric layer on the composite electrode, and a second electrode on...
Microelectromechanical systems device package and method for producing the
A microelectromechanical systems device package includes a MEMS device mounted in flip-chip technology on a substrate. A film of non-evaporable getter material...
Filter device and duplexer including compensation circuit
A filter device includes a single terminal and first and second balanced terminals. A balanced filter is connected between the single terminal and the first and...
In an electronic component, first through n-th LC parallel resonators respectively include first through n-th inductors disposed in a device body such that they...
Method for manufacturing piezoelectric vibration device
A method for manufacturing a piezoelectric vibration device wherein a substrate is prepared, and a piezoelectric resonator element is mounted on the substrate....
Position detecting system
A position detecting system detects and responds to the movement of a target through a sensing domain area of a plane. The movement causes the amount of the...
Power detection circuit and RF signal amplification circuit having the
The present invention relates to a power detection circuit and an RF signal amplification circuit having the same. According to an embodiment of the present...
Signal conversion with gain in the forward path
A system and method of frequency conversion or demodulation can be used in wireless environments. A demodulator or frequency converter can include a forward...
Carrier aggregation amplifier with dual gain control
An apparatus includes a first amplification stage configured to amplify a first carrier signal and a second amplification stage configured to amplify a second...
Dynamic real-time calibration for antenna matching in a radio frequency
This disclosure relates to real-time calibration of a tunable matching network that matches the dynamic impedance of an antenna in a radio frequency receiver...
Audio amplifier, audio output circuit, integrated circuit for audio,
electronic device, and method for...
An audio amplifier is disclosed. The audio amplifier for driving an electroacoustic transducer includes an H bridge circuit including a 1D-class amplifier...
Multi-mode power amplifier and mobile communication terminal having the
A multi-mode power amplifier comprises a regulation control circuit, an AMP 1, a demultiplexer, an AMP 2, a low power output matching circuit, a medium power...
Power amplification apparatus and control method
A power amplification apparatus generates a code for controlling the number of class D power amplifiers that are in operation among a plurality of class D power...
System and method for a low noise amplifier
In accordance with an embodiment, a circuit includes a first signal path coupled between an input port and an output port, and a second coupled between the...
Instrumentation amplifier with rail-to-rail input range
A system and method for adjusting a common mode output voltage in an instrumentation amplifier is provided. In one aspect, the common mode output voltage is...
Distortion compensation device and distortion compensation method
A distortion compensation device for correcting balance between a first branch and a second branch, includes: an adjustment unit that is arranged in an input...
Method and system for linearizing an amplifier using transistor-level
The present disclosure describes a method and system for linearizing an amplifier using transistor-level dynamic feedback. The method and system enables...
Amplification phase correction in a pulse burst
An apparatus having an amplifier and a correction circuit is disclosed. The amplifier may be configured to amplify an intermediate signal to generate an output...
Interference suppression for switched mode power supply with error
A switched mode power supply arranged to provide a switched supply at one terminal of an inductor, another terminal of the inductor being connected to a first...
Fully differential signal system including common mode feedback circuit
Provided is a fully differential signal system including a first amplification unit including first and second output terminals configured to output an output...
Amplifier circuit and operation method thereof
Disclosed is an amplifier circuit capable of achieving high efficiency at back off power while maintaining high output power when an amplifier of a driving...
Dual instantaneous envelope tracking
Power supply circuitry, which includes a parallel amplifier and a parallel amplifier power supply, is disclosed. The power supply circuitry operates in either...
Radio-frequency amplifier circuit and control voltage setting method for
radio-frequency amplifier circuit
A radio-frequency amplifier circuit includes first and second FETs cascode-connected to each other. The gate of the first FET is connected to a radio-frequency...
Capacitive trans-impedance amplifier circuit with charge injection
A capacitive trans-impedance amplifier circuit with charge injection compensation is provided. A feedback capacitor is connected between an inverting input port...
Duplexer and cable modem using a duplexer
A duplexer, applying in a cable modem, comprises a first mixer, a band-pass filter and a second mixer, in order to filter MoCA interference signal of downstream...
Quadrature voltage controlled oscillator
A quadrature voltage controlled oscillator includes a first voltage controlled oscillator having a first current source, a first oscillator circuit, a first...
Clock signal generating circuit
A clock signal generating circuit includes: an oscillator having a trimming function of arbitrarily adjusting an oscillation frequency of a first clock signal...
Large signal VCO
An alternation voltage- or current generator comprises a first switch driving output network whose frequency can be tuned. The tuneable network comprises a...
Portable and modular power generation device
A portable power generation device includes a protective case and a power source. The protective case has a lower case portion and an upper case portion, the...
Roof mounted installation solar power system
A solar power system is mounted to a solar power componentry support structure suspended above a pre-existing surface by a collective of solar collector...
Device for fastening PV modules to roofs having a trapezoidal metal sheet
Device for fastening at least one PV module (1) to a roof which comprises a trapezoidal metal sheet (2) with a trapezoidal bead (3) with two oblique sides (4,...
A controller for an electric compressor sets a temperature rise region A, a temperature drop region B, and a steady region C from change in temperature of...
Over temperature protection device for electric motors
An over temperature protection device for electric motors applicable to a railway vehicle driving system that operates a plurality of electric motors in...
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, a...
Input EMI filter for motor drive including an active rectifier
A poly-phase motor drive includes an input EMI filter having a poly-phase filter input and a poly-phase filter output and an active rectifier connected to the...
System and method for timed insertion of a phase shift capacitor upon
powering a split capacitor electrical motor
A power circuit is configured with mostly passive electrical components to connect a phase shift capacitor to a phase shift winding of a PSC motor selectively....
Variable speed drive system, method for operating a variable speed drive
system and method for refrigerating a...
A variable speed drive system employing an electric motor and a frequency converter arranged between an AC power source and the electric motor is operated. The...
Apparatus for driving interior permanent magnet synchronous motor and
method of controlling the apparatus
There is provided a driving apparatus of an interior permanent magnet synchronous motor (IPMSM) including a current command generator outputting a current...
Apparatus for diagnosing flux of motor in vehicle
An apparatus for diagnosing motor performance of a vehicle and a method thereof are provided. The apparatus for diagnosing motor performance includes...
Electric motor controller
An electric motor controller includes a first coordinate conversion unit that converts a three-phase current into a current in a .delta.c-.gamma.c rotating...
Stator flux magnitude and direction control strategies for permanent
magnet synchronous motors
The present disclosure relates to a motor control circuit and related method that includes a transform component configured to receive current values associated...
Stepping motor control device, optical apparatus, stepping motor control
method, and non-transitory computer...
A stepping motor control device includes a position detection sensor configured to detect a rotation position of a stepping motor, a voltage controller...
Apparatus and method for initially driving a sensorless BLDC motor
Provided is a sensorless BLDC motor apparatus for providing a drive current allowing the rotor of the BLDC motor to be aligned in a predetermined direction...
Phase current regulation in BLDC motors
A method is provided for determining a phase current direction and a zero-crossing moment of the phase current in a sinusoidally controlled brushless direct...
Adaptive E-drive operation for electrified vehicle
A system is configured to receive vehicle state input, and in response to the vehicle state input, select an operational mode for PWM switching of electronics...
Apparatus and method for compensating for torque for current order of
An apparatus for compensating for a torque for a current order of a driving motor includes: a current order generator configured to: i) receive a torque order...
Motor driving device
A motor driving device includes an analog to digital conversion circuit to which a speed command voltage instructing a rotation speed of a motor is inputted,...
Motor drive device
A motor drive device includes a constant voltage power supply and a motor drive control unit. The constant voltage power supply includes an AC/DC converter, a...
Circuit for thermal protection and power regulation of electric motors
A circuit for thermal protection and power regulation as a function of the current winding temperature of phase windings of an electric motor. The circuit...
Motor control circuit and method
In accordance with an embodiment, a drive circuit is provided for driving for a motor wherein the drive circuit includes a rotational state generation circuit...