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Transimpedance Amplifier Circuit
A transimpedance amplifier circuit (1) includes an amplifier (22) that amplifies a received signal, an automatic gain control (AGC) circuit (2) that controls...
AMPLIFIER CURRENT CONSUMPTION CONTROL
The audio amplifier includes a variable gain amplifier receiving the input audio signal and providing the output signal, whereby the output signal corresponds...
RANDOM CHOPPER CONTROL CIRCUIT
A random chopper control circuit is disclosed. The random chopper control circuit is coupled to an operational amplifier. The random chopper control circuit...
RADIO FREQUENCY SYSTEM SWITCHING POWER AMPLIFIER SYSTEMS AND METHODS
Systems and method for improving operation of a radio frequency system are provided. One embodiment describes a radio frequency system, which includes a first...
DIFFERENTIAL POWER AMPLIFIER FOR MOBILE CELLULAR ENVELOPE TRACKING
A differential power amplifier comprises an envelope tracking power supply configured to provide an envelope power supply signal to the differential power...
BEHAVIORAL MODEL AND PREDISTORTER FOR MODELING AND REDUCING NONLINEAR
EFFECTS IN POWER AMPLIFIERS
The behavioral model and predistorter for modeling and reducing nonlinear effects in power amplifiers addresses the model size estimation problem. The GMP...
SYSTEMS AND METHODS FOR IMPROVED POWER YIELD AND LINEARIZATION IN RADIO
An exemplary system comprises a linearizer module, a first upconverter module, a power amplifier module, a signal sampler module, and a downconverter module....
APPARATUS AND METHODS FOR ENVELOPE SHAPING IN POWER AMPLIFIER SYSTEMS
Apparatus and methods for envelope shaping in power amplifier systems are provided. In certain implementations, a power amplifier system includes a modulator...
OUTPUT MATCHING NETWORK FOR DIFFERENTIAL POWER AMPLIFIER
An output matching network for a differential power amplifier comprises an output transformer having a center tap and a low pass filter. The output transformer...
A distributed amplifier includes: an input-side transmission line; M amplification circuits; M output-side transmission lines; and a combination circuit...
According to one embodiment, a high-frequency amplifier includes an active element and an output matching circuit. The active element is provided on a...
MULTISTAGE DIFFERENTIAL POWER AMPLIFIER HAVING INTERSTAGE POWER LIMITER
A differential power amplifier has at least an input stage and an output stage. A first output stage amplifier is configured to receive a first portion of a...
TRANSCONDUCTANCE OPTIMIZATION USING FEEDBACK-BALUN-TRANSFORMER WITH
INDUCTANCE DEGENERATION COMBINATIONS
Disclosed are apparatuses and methods to overcome technology limitations to achieve linearity and efficiency performance suitable for practical wireless...
METHOD AND APPARATUS FOR WIRELESS POWER TRANSMISSION UTILIZING
TWO-DIMENSIONAL OR THREE-DIMENSIONAL ARRAYS OF...
An apparatus for transferring power wirelessly is provided. The apparatus comprises a plurality of magneto-mechanical oscillators. Each oscillator comprises a...
SOLAR COLLECTOR CABLE SUPPORT TRAY AND SUPPORT SYSTEM
A cable tray and support system facilitates cable management in a solar energy collector system at reduced cost relative to previous cable tray and support...
SOLAR PANEL MODULE WITH INCREASED VOLUME OF SOLAR PRODUCTION
A solar panel module that provides increased efficiency solar production within a volume of a two-dimensional space's square footage. The module may include at...
TORQUE TUBE MOUNTED PHOTOVOLTAIC APPARATUS, SYSTEM, AND METHOD
An interlocking system for connecting photovoltaic module frames to a torque tube, including: (a) an interlock dimensioned to be positioned between the sides...
APPARATUS FOR MOUNTING A POWER CONDITIONER TO A PHOTOVOLTAIC MODULE FRAME
An apparatus for mechanically coupling a power conditioner to a photovoltaic (PV) module frame. In one embodiment, the apparatus comprises: a bracket, adapted...
ATTACHMENT STRUCTURE OF PHOTOVOLTAIC CELL MODULE
Provide an attachment structure suitable for attaching a thin-film photovoltaic cell module having flexibility to various installation surfaces and attachment...
PHOTOVOLTAIC MODULE MOUNT
Mounting components of photovoltaic (PV) modules and PV module assemblies are described, including PV module couplings and PV module mounting chassis. In an...
PORTABLE SOLAR POWER GENERATION DEVICES FOR PERMANENT OR TEMPORARY
INSTALLATIONS AND METHODS THEREOF
A portable solar power generation device includes an adjustable solar array apparatus and a power and control block apparatus. The adjustable solar array...
System for Holding at Least One Solar Panel on a Solar Module and Solar
Module Comprising Same
A mounting system for holding at least one solar panel on a solar module of a solar tracker includes at least one beam having a longitudinal elongate opening...
FLUIDIC ACTUATOR SYSTEM AND METHOD
A pneumatically actuated solar panel array system that includes a plurality of separate actuator assemblies that each have a top plate and bottom plate and a...
Carrier Structure for Solar Panels and Method of Producing Such a Carrier
The invention relates to a carrier structure for solar panels. The invention also relates to a beam (3) for use in a carrier structure according to the...
MOTOR CONTROL APPARATUS
A motor control apparatus includes an A/D converter to apply A/D conversions to a motor current signal and a resolver output signal, respectively; a processor...
METHOD FOR ACTUATING A BRUSHLESS MOTOR
A method for operating an electronically commutated synchronous machine, having a stator with at least two, in particular three, phase windings and a rotor...
FAILURE DIAGNOSIS DEVICE AND FAILURE DIAGNOSIS METHOD FOR INVERTER
A control unit of an inverter for driving a three-phase motor receives a voltage of a connection point from a circuit, in which the connection point...
FREQUENCY CONVERTER AND DRIVE SYSTEM
Design and manufacturing of frequency converters for different Ingress Protections (IP) ratings is facilitated. A frequency converter comprises an enclosure...
DRIVING APPARATUS FOR ELECTRIC MOTOR
The present invention relates to a driving apparatus which performs vector control based on an output current of an inverter. The driving apparatus of the...
INDUCTION MOTOR FLUX AND TORQUE CONTROL
An induction motor controller is provided. The induction motor controller includes a first module that derives a commanded stator voltage vector, in a stator...
System and Method for Controlling the Operation of an Electric Motor of a
The present invention refers to a system for controlling the operation of an electric motor of a compressor, comprising at least one predictive speed control...
MOTOR DRIVING CIRCUIT
A first calculation unit subtracts third digital data which indicates the minimum value of the duty ratio from first digital data which indicates the duty...
DRIVE CIRCUIT FOR A BRUSHLESS MOTOR HAVING AN AC/AC BOOST CONVERTER
An AC/AC boost converter comprising input terminals, output terminals, an inductor, a bridge arm comprising a pair of bi-directional switches, a capacitor and...
RELIABLE CURRENT SENSING FOR INVERTER-CONTROLLED ELECTRIC MACHINE
Phase currents of an inverter-driven electric machine are measured by mounting phase conductors of each respective phase current into a central passage of a...
MOTOR DRIVING CIRCUIT TO REDUCE SWITCHING LOSS
The present invention provides a motor driving circuit to reduce switching loss, which is applied to a motor. The motor driving circuit comprises a motor...
PIEZOELECTRIC DRIVE DEVICE AND ROBOT
A piezoelectric drive device includes multiple piezoelectric drive units that have a contact portion which can come into contact with a driven portion, and...
TRIBOELECTRIC ENERGY HARVESTER USING ELECTROLYTE
Disclosed is a triboelectric energy harvester including an electrolyte solution comprising an electrolyte, and a friction material layer configured to contact...
Row and column actuator control
In one embodiment, a device is provided that includes: a plurality of actuators arranged into a plurality of rows and a plurality of columns; a plurality of...
Multi-Decade Current-to-Voltage Converter
A multi-decade current-to-voltage conversion circuit capable of converting input currents over several orders of magnitude to a voltage over one order of...
ELECTRICAL POWER CONVERSION DEVICE
An electric power conversion device has semiconductor modules, a main P bus bar, a main N bus bar, a capacitor module, an input P bus bar and an input N bus...
A conversion device includes: a DC bus provided between a DC power supply and an AC power supply; a first converter provided between the DC power supply and...
MULTI-CELL POWER CONVERSION METHOD WITH FAILURE DETECTION AND MULTI-CELL
A power converter includes a plurality of first converter cells, a plurality of second converter cells, and a plurality of DC link capacitors. Each DC link...
INSULATED SYNCHRONOUS RECTIFICATION DC/DC CONVERTER
An external circuit element R.sub.SET is connected in use to an SET terminal. A synchronous rectification controller generates a pulse signal S1 based on a...
INSULATED SYNCHRONOUS RECTIFICATION DC/DC CONVERTER
A secondary-side module comprises: a synchronous rectification controller that controls a synchronous rectification transistor; and a shunt regulator that...
ISOLATED DC/DC CONVERTER, FEEDBACK CIRCUIT THEREOF, POWER SUPPLY DEVICE,
POWER SUPPLY ADAPTOR, AND ELECTRONIC...
A feedback circuit includes: an input terminal which receives a voltage detection signal corresponding to an output voltage of a DC/DC converter; an output...
POWER SUPPLY WITH NEAR VALLEY SWITCHING
A switched-mode power supply with near valley switching includes a quasi-resonant converter. The converter includes a switch element that is turned on not only...
SWITCHING POWER SUPPLY DEVICE
A switching power supply device having a synchronous rectifier IC on a secondary side, responds to an anomaly on a primary side based on detecting an...
CONTROL METHOD AND DEVICE FOR QUASI-RESONANT HIGH-POWER-FACTOR FLYBACK
The present disclosure is directed to a high power factor quasi resonant converter. The converter converts an AC power line input to a DC output to power a...
PRIMARY SIDE REGULATED ISOLATION VOLATGE CONVERTER
A primary side regulated isolation voltage converter. The primary side regulated isolation voltage converter comprises a control module and a ripple control...
CURRENT MODE REGULATOR
Disclosed are advances in the arts with novel and useful current mode regulators. Circuits, systems, and methods for current mode regulation include a primary...