At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.
Planar structure of a mechanical resonator decoupled by bending
oscillation and expansion/compression vibrations
Mechanical resonators for making timepieces have the drawback of not being simultaneously efficient, compact, and inexpensive. The invention is a planar...
Acoustic wave device and fabrication method of the same
An acoustic wave device includes: a substrate; an input terminal that is located on a first surface of the substrate, and to which a high-frequency signal is...
Acoustic resonator having temperature compensation
An acoustic resonator structure comprises a substrate having an air cavity, an acoustic stack disposed over the substrate and comprising a piezoelectric...
Impedance matching device and control method
In an impedance matching device between a power transmission circuit and a power transmission antenna, a storage unit stores tables associated with a load...
Variable capacitor, impedance matching device, mobile terminal thereof and
method for matching impedance
Disclosed is an impedance matching device. Variable devices of the impedance matching device installed in a mobile terminal, such as a portable terminal, are...
Nonlinear capacitance linearization
An apparatus, which includes a first electronic device, a first nonlinear capacitance compensation circuit, and a capacitance compensation control circuit, is...
Equalization of frequency-dependent gain
Systems, devices, and methods for determining and establishing frequency-dependent gain compensation in wide bandwidth communication systems are disclosed....
Resonating device with single operational amplifier
A resonating device includes: an amplifying circuit having a first input terminal, and an output terminal for outputting an output signal; a first feedback...
Control of a switched mode power supply and linear power supply for an
An audio device and an output method thereof are provided. The audio device includes: an envelope detector configured to detect an envelope of an input audio...
Active attenuator keeping saturated output power for reduced input power
An active attenuator is disclosed. The attenuator includes a divider to divide an input signal into two signals, a phase shifter to shift a phase of one of...
Input amplitude modulated outphasing with an unmatched combiner
An amplifier system is disclosed, configured to apply a signal component separator algorithm such that the first phase modulated signal and the second phase...
Differential amplifier circuit
Aspects of the invention include a differential amplifier circuit with a differential amplifier operated with a first power supply voltage applied thereto to...
Amplifier circuit with static consumption control and corresponding
An amplifier circuit may include an input amplification stage comprising a first amplifier having first and second differential inputs and a first output, and a...
Complex bandpass filter having a transfer function with two poles
In some implementations, a filter circuit includes a first signal path that includes a first amplifier and a second signal path that includes a second...
Semiconductor integrated circuit device
A device includes an operational-amplifier including an amplifier-part amplifying signals and transmitting amplified signals to a first and a second nodes, and...
Tube amplifier systems and related methods
An amplifier stage module circuit has a tube connected with an anode section, a grid section, a cathode section, and an attenuator section. The amplifier stage...
Distortion compensation apparatus and wireless communication apparatus
Distortion is effectively reduced in a wide frequency band of an output signal from an amplifier. A distortion compensation apparatus includes: a distortion...
Wideband low-power amplifier
An amplifier is provided that includes a differential pair of transistors configured to steer a tail current responsive to a differential input voltage. The...
Doherty power amplifying circuit and power amplifier
A Doherty power amplifying circuit includes at least two asymmetrical two-branch power devices. Each of the asymmetrical two-branch power devices includes two...
Reconfigurable load modulation amplifier
A reconfigurable load modulation amplifier having a carrier amplifier and a peak amplifier that are coupled in parallel is disclosed. The peak amplifier...
A Doherty amplifier (300) is provided, it comprises: a main amplifier (301) and a peak amplifier (302); a first microstrip (303) with .lamda./4 electric length...
Amplifier circuit and method
First and second amplifiers are respectively coupled to first and second lines, each having first and second portions. An auxiliary amplifier has an output...
Device and method for bias control of class A power RF amplifier
A circuit and technique are provided to control bias setting to an FET based common source RF amplifier that can operate with large signals present. The circuit...
Method for system level oriented load-pull-based envelope tracking power
The method for system level oriented load-pull-based envelope tracking power amplifiers includes steps of performing a multi-dimensional load-pull and selecting...
Tracking power supply with increased boost capability
A tracking power supply for one or more amplifiers includes one or more cascaded sets of power boost circuits to temporarily boost the positive and/or negative...
Modulation circuit and operating method thereof
A modulation circuit includes a phase locked loop (PLL) circuit, a scalar circuit and a sigma-delta modulator. The PLL circuit is for generating an output...
Inductive coupled pass transistor quadrature voltage controlled oscillator
A quadrature voltage controlled oscillator (QVCO) for providing an oscillating output signal. The QVCO includes a first oscillating circuit for producing a...
Semiconductor circuit device, electronic device, electronic apparatus, and
A semiconductor circuit device includes: a semiconductor substrate; and a first circuit block including an analog circuit as a component, a second circuit block...
A modulated signal based on a low-precision, fast startup oscillator is provided to a circuit with a high-precision, slow startup oscillator. The frequency of...
System and methods for correcting clock synchronization errors
Clock synchronization error is corrected or minimized by fitting a parabolic f(T) function to the crystal's data, and compensating for sampling period drift in...
Apparatus and method for providing oscillator signals
An apparatus for providing oscillator signals includes an oscillator circuit configured to generate a first oscillator signal with a first oscillator signal...
Panel mounting bracket assembly including an adjustable height extension
device and related methods
A system for mounting at least one solar panel on a building may include at least one panel mounting bracket including a base to be positioned on the building,...
High power low voltage electrified powertrain
An electrified powertrain includes an electric motor having four or more coils corresponding to four or more AC phases and configured to generate drive torque...
Technique for correcting resolver offset
Disclosed is a technique of correcting a resolver offset by measuring and correcting an offset of a resolver assembled to a motor of an eco-friendly vehicle in...
Voltage regulator and methods for simulating reactive power in parallel
power generation systems
Systems, methods, and a voltage regulator are provided for tuning reactive droop compensation of a generator in a parallel power generation system. The voltage...
Sensorless BEMF measurement in current-controlled brushless motors
A method for determining a reserve torque in an electronically-switched drive mechanism, specifically a pulse motor for a headlamp beam adjustment system, based...
The motor controller includes: a current detection section that detects a current between a battery and an inverter circuit generating a voltage applied to a...
Method of controlling a permanent magnet motor and corresponding system
A method for controlling a motor propulsion unit including a motor including a permanent magnet rotor and a stator, the method including regulating currents of...
Drive system with combined actuation of brake and encoder
A drive system includes a line assembly configured to connect a power converter to an electric motor which has a brake and an encoder. The line assembly has at...
Motor control device, motor control method, and computer-readable storage
A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the...
Circuit and method for reducing inrush current of phase converter motor
A method and circuit for starting a three-phase motor in a manner that reduces inrush current normally associated with starting an AC motor. The method uses the...
Electric circuit with power amplifier for piezoelectric actuators
An electric circuit with one power amplifier (V1) for at least two piezoelectric actuators (C1, C2), said piezoelectric actuators (C1, C2) being in preferably...
Segmentally structured disk triboelectric nanogenerator
A generator includes a disc shaped first unit, a disc shaped second unit and an axle. The first unit includes a substrate layer, a double complementary...
A switching power supply device equipped with an inverter device includes a transformer including a primary winding and a secondary winding, which are...
Hybrid zero-voltage switching (ZVS) control for power inverters
A power inverter combination includes a half-bridge power inverter including first and second semiconductor power switches receiving input power having an...
Power converter, power generating system, apparatus for controlling power
converter, and method for controlling...
A power converter according to one embodiment includes a controller that switches between a boosting operation in a boost circuit and a pulse-width modulation...
Inverter and power supplying method thereof and application using the same
An inverter and a power supply method thereof and an application thereof are provided. The inverter includes a DC-DC conversion circuit, an inverting circuit...
Switching branch for three-level inverter and method for controlling
switching branch of three-level inverter
A switching branch for a three-level inverter, comprising a first and second switch (S1, S2) in series between a positive DC pole (P) and an AC pole (AC), a...
Inverter that converts DC power into AC power
An inverter converts a direct-current (DC) power supplied from different DC power supplies into an alternate-current (AC) power formed by a quasi sinusoidal...
Modified voltage source converter structure
The invention concerns a voltage source converter (26) comprising a group of phase legs, at least three connection terminals (AC1, AC2, AC3, DC+, DC-) for...