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.
Programmable Hysteresis Comparator
In one embodiment, a circuit includes a differential amplifier having a differential pair with a first transistor and second transistor. Each of the first and...
POWER STAGE WITH SWITCHED MODE AMPLIFIER AND LINEAR AMPLIFIER
A method for producing an output voltage to a load may include, in a power stage comprising power converter having a power inductor, a plurality of switches...
AMPLIFIER CONTROL APPARATUS
An apparatus for controlling a pulse width modulation (PWM) amplifier is disclosed. In one aspect, the apparatus includes a delay circuit configured to delay...
LOW NOISE AMPLIFIER
Circuitry includes a floating-body main field-effect transistor (FET) device, a body-contacted cascode FET device, and biasing circuitry coupled to the...
BROADBAND RADIO FREQUENCY POWER AMPLIFIERS, AND METHODS OF MANUFACTURE
An embodiment of an amplifier has a bandwidth defined by low and upper cutoff frequencies. The amplifier includes an input impedance matching circuit and a...
APPARATUS AND METHOD FOR CONTROLLING IMPEDANCE TUNING BY USING HYBRID
An impedance tuning control apparatus has a processing circuit and an output circuit. The processing circuit determines a first control setting according to a...
WEIGHTED MEMORY POLYNOMIAL METHOD AND SYSTEM FOR POWER AMPLIFIERS
A system and method for linearizing a power amplifier using digital predistortion technique is provided including processing circuitry, the processing...
AMPLIFIER CIRCUIT AND METHOD
An amplifier circuit comprises a first amplifier configured to amplify a first input signal. The output of the first amplifier is coupled to an output node via...
Amplifier Topology for Envelope Tracking
An amplifier (100) comprises an input port (102) for receiving an input signal, an envelope port (104) for receiving an envelope signal indicative of an...
TRANSFER FUNCTION REGULATION
The invention relates to a technique for controlling in an envelope tracking amplification stage, comprising: determining a representation of the output signal...
GROUP-AWARE CURRENT-LIMITED AMPLIFIER AND SYSTEM
A group-aware, current limited amplifier system including a group brownout control bus and a number of current-limited amplification channels coupled to the...
APPARATUS AND METHODS FOR REDUCING INPUT BIAS CURRENT OF AN ELECTRONIC
Apparatus and methods for reducing input bias current of electronic circuits are provided herein. In certain implementations, an electronic circuit includes a...
SEMICONDUCTOR AMPLIFIER BIAS CIRCUIT AND SEMICONDUCTOR AMPLIFIER DEVICE
A semiconductor amplifier bias circuit includes a first transmission line, a first grounded capacitor, a second transmission line and a power supply terminal....
TRANSFORMER FEEDBACK AMPLIFIER
An apparatus includes: first and second transistors, each of the first and second transistors includes a gate terminal, a source terminal, and a drain...
SWITCHED MODE POWER AMPLIFIER WITH IDEAL IQ COMBINING
An I converter outputs I sign data and I magnitude data based on received I data. A Q converter outputs Q sign data and Q magnitude data based on received Q...
PHASE SHIFTING MIXER
Performing quadrature combining and adjusting including: a plurality of mixing circuits configured to generate a plurality of frequency converted signals; at...
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...
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...
Ka Band Multi-Chip Modulator
A multi-chip module is provided including a multiplier configured to multiply a frequency of an input signal into a predetermined Ka-band frequency center...
Time Domain Switched Ring/Disc Resonant Gyroscope
A system includes a circular oscillator suspended by a flexible support structure to a support frame, a drive mechanism configured to induce the circular...
VOLTAGE-CONTROLLED OSCILLATOR WITH MASK-SELECTABLE PERFORMANCE
An apparatus having a substrate with an inductor, a first die and a second die is disclosed. The first die may be (i) mounted on the substrate, (ii) configured...
An object of the present invention is to provide a semiconductor device including an oscillator circuit including a circuit between inverters. In the circuit,...
CROSS-COUPLED OSCILLATOR, INTEGRATED CIRCUIT AND ELECTRONIC DEVICE
A cross-coupled oscillator arrangement has a first resistance-capacitance oscillator core including at least two inverting stages; and a second ...
ELECTRIC INTERCONNECTION SYSTEM FOR SOLAR CELL OF VEHICLE ROOF
An electric interconnection system in a vehicle includes a fixed part of the vehicle and a movable part of the vehicle. The movable part has a solar cell...
Photovoltaic Roofing Elements And Photovoltaic Roofing Systems
The present invention relates generally to the photovoltaic generation of electrical energy. The present invention relates more particularly to photovoltaic...
HEIGHT ADJUSTMENT BRACKET FOR ROOF APPLICATIONS
A roof mount for mounting at least one solar panel to a roof surface including a base. The roof mount includes a clamp connected to the base and a first recess...
FAILURE DIAGNOSTIC APPARATUS AND METHOD FOR CURRENT SENSORS OF 3-PHASE
BRUSHLESS AC MOTOR
A failure diagnostic apparatus for current sensors of a 3-phase brushless AC (BLAC) motor may include: a 3-phase BLAC motor; current sensors each configured to...
A drive device that includes a current sensor that detects a current flowing in the wheel driving rotary electric machine; and shunt resistors that detect...
APPARATUS FOR CONTROLLING INVERTER
Disclosed herein is an apparatus for controlling an inverter in an inverter system. The apparatus includes: a first determining unit to determine a magnitude,...
APPARATUS FOR CONTROLLING INVERTER
Disclosed herein is an apparatus for controlling an inverter. The apparatus determines the phase of an command voltage in a restart section taking into account...
DUAL POWER MODE DRIVE
A method of controlling a motor drive having a normal mode wherein a DC link voltage is charged using an AC (e.g. mains) power supply and an emergency mode...
ELECTRICAL DRIVE SYSTEM AND ENERGY STORAGE APPARATUS THEREFOR
A drive system may have at least one electric motor which can be fed via power electronics which can be connected via a DC circuit to a voltage source and...
MOTOR CONTROL APPARATUS
A motor control apparatus that estimates a temperature of a temperature estimation target element at a time of energizing the motor and drives a motor by...
DIVIDED PHASE AC SYNCHRONOUS MOTOR CONTROLLER
A circuit includes phase windings, a power switch circuit comprising at least one power switch at a midpoint of the phase windings, a direct current (DC)...
METHODS AND APPARATUS FOR ROTOR POSITION ESTIMATION
An apparatus and method for estimating the position of a rotor. An apparatus comprises a first rotor having an angular position, a second rotor which interacts...
METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE
A method of operating an internal combustion engine, wherein a fuel-air mixture is burnt in the internal combustion engine and the internal combustion engine...
SENSORLESS ROTOR ANGLE DETECTION CIRCUIT AND METHOD FOR A PERMANENT MAGNET
An estimate of the initial position of a rotor is made by monitoring sensed motor current signals which are amplitude and phase modulated with the rotor flux...
PHASE CONTROL CIRCUIT FOR BRUSHLESS MOTOR, BRUSHLESS MOTOR AND METHOD FOR
CONTROLLING THE PHASE OF BRUSHLESS MOTOR
A phase control circuit for a brushless motor includes a signal output unit that outputs M signals, whose phases differ from each other, in response to a...
MOTOR CONTROL DEVICE FOR CONTROLLING CURRENT PHASE ON dq/THREE-PHASE
A motor control device for controlling a three-phase AC motor by using dq-three-phase coordinate conversion includes a phase correction amount calculation unit...
MOTOR DRIVE CONTROLLER AND CONTROL METHOD OF MOTOR DRIVE CONTROLLER
A motor drive controller includes: a control circuit unit configured to output a drive control signal for driving a motor in response to a command signal...
REGENERATIVE RECTIFIER FOR A MOTOR CONTROL DRIVE
A system, and associated method, fbr controlling a motor drive coupled to an AC power source in a condition wherein the motor drive is generating a ...
Systems And Methods For Harvesting Piezoelectric Energy From Hydraulic
Aspects of the present disclosure relate to systems and methods for harvesting energy from the pressure ripple of a fluid system. In an example embodiment, a...
System and Method for Electric Power Generation Using Piezoelectric
A piezoelectric power generation system includes a housing and one or more piezoelectric modules disposed within the housing. Each of the one or more...
System and Method for Electric Power Generation Using Structured Stacked
A piezoelectric power generation system includes a housing defining an opening therethrough and a support structure disposed within the housing, the support...
System and Method for Electric Power Generation Using Structured
A piezoelectric power generation system includes a housing, the housing defining an opening therethrough. The piezoelectric power generation system further...
VIBRATION DRIVE DEVICE IN WHICH SEPARATION BETWEEN MEMBERS BY EXTERNAL
FORCE IS SUPPRESSED, LENS BARREL, IMAGE...
A vibration drive device which suppresses separation between members thereof when an external force is applied thereto. The vibration drive device excites...
An inverter device includes: a step-up circuit; an inverter circuit; a control unit for controlling the step-up circuit and the inverter circuit; and a reactor...
METHOD AND SYSTEM FOR OPERATING A MULTILEVEL INVERTER
A controller for operating a multilevel electric power inverter circuit. The controller is configured to generate and apply to the plurality of switching...
ADJUSTABLE PWM METHOD TO INCREASE LOW SPEED STARTING TORQUE AND INVERTER
VOLTAGE MEASUREMENT ACCURACY
Methods, control apparatus and computer readable mediums are presented for controlling a switching inverter in which a controller selectively suspends PWM...
IMPROVEMENTS RELATING TO POWER ADAPTORS
A power adaptor is disclosed, which comprises an input for connection to an AC power supply, a resonant circuit coupled to the input that provides an output...