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QUATERNARY/TERNARY MODULATION SELECTING CIRCUIT AND ASSOCIATED METHOD
A quaternary/ternary modulation selecting method of an audio amplifier includes: generating a ternary signal and a quaternary signal; generating a plurality of...
SEMICONDUCTOR INTEGRATED CIRCUIT, COMMUNICATION MODULE, AND SMART METER
A semiconductor integrated circuit includes a transformer that, includes a first winding and a second winding, a low-noise amplifier circuit that includes an...
LIGHT RECEIVING CIRCUIT AND OPTICAL COUPLING DEVICE
According to an embodiment, a light receiving circuit includes a light receiving element, a first MOS transistor of a first conductivity type that has a first...
Transimpedance Amplifier (TIA) Having an Enlarged Dynamic Range and
Optical Devices Using the Same
A gain-variable trans-impedance amplifier (TIA) in optical device is disclosed. The TIA has an improved dynamic range for receiving electrical signals and is...
LOW NOISE AMPLIFIER CIRCUIT
A low noise amplifier circuit includes a first amplifier including a first transistor and a second transistor that are cascode-connected to each other; a...
In an embodiment an amplifier circuit comprises an amplifying element configured to amplify a radiofrequency input signal; a bias modulator configured to...
SEMICONDUCTOR INTEGRATED CIRCUIT, COMMUNICATION MODULE, AND SMART METER
A semiconductor integrated circuit includes a low-noise amplifier circuit, a transformer, and an ESD protection circuit. The low-noise amplifier circuit...
ACTIVE LOAD CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT
According to one embodiment, there is provided an active load circuit including a first transistor, a second transistor, a first resistor, a second resistor, a...
SEQUENTIAL BROADBAND DOHERTY POWER AMPLIFIER WITH ADJUSTABLE OUTPUT POWER
The invention relates to a sequential broadband Doherty power amplifier with adjustable output power back-off The sequential broadband Doherty power amplifier...
According to one embodiment, a transimpedance circuit includes: a transimpedance amplifier that converts a current signal into a voltage signal, a reference...
Class-E Outphasing Power Amplifier with Efficiency and Output Power
Enhancement Circuits and Method
An outphasing amplifier includes a first class-E power amplifier (16-1) having an output coupled to a first conductor (31-1) and an input receiving a first RF...
POWER AMPLIFIER AND PHASE CORRECTION METHOD THEREFOR
A power amplifier apparatus may include an amplifier configured to amplify an input signal and a delay transferring circuit connected between an input terminal...
WIRELESS COMMUNICATION DEVICE
A wireless communication device includes a table, a correction unit, a digital-to-analog converter (DAC), a power amplifier, an analog-to-digital converter...
Current Driven Crystal Oscillator
An oscillator circuit with an oscillator stage and a first current source arranged to drive the oscillator stage is presented. The oscillator stage has an...
SENSITIVITY VARIABLE LOOP GAIN OSCILLATOR SENSOR SYSTEM
A sensor system on an oscillator having variable loop gain level is described. Only when the oscillator loop gain is at least the level of one does the...
DISH RECEIVER SYSTEM FOR SOLAR POWER GENERATION
A solar reflective assembly includes a plurality of reflective segments radially configured to collectively at least partially define a dish-shaped reflector...
Solar Collecting Device
A solar collector having two axis control and cogeneration capabilities is provided. The solar collector may have a primary collecting mirror, a second...
MODULAR UNIT FOR ATTACHMENT TO SOLAR PANEL
A modular unit attached to a solar panel. The modular unit comprises a heat exchanger having an inlet manifold and an outlet manifold and a plurality of spaced...
The present invention relates to a photovoltaic module. A photovoltaic module according to an embodiment of the present invention comprises a solar cell...
MOUNTING BRACKET ASSMEBLY
The present disclosure relates to mounting brackets. In various embodiments, a mounting bracket may comprise a middle portion, a top portion, and a bottom...
SOLAR CELL MODULE
A solar cell module includes a first solar cell, a second solar cell disposed with a gap from the first solar cell, and a light reflection sheet bridging...
Method for Delivering Flexible Solar Cells into a Roll-to-Roll Module
Methods and systems for forming and packaging a roll of photovoltaic cells are provided. A string of photovoltaic cells is incrementally formed such that the...
Sunlight Harvesting Transparent Windows
A photovoltaic system is formed as a window that is constructed of at least one polymer layer that is filled or decorated with metal nanoparticles and a window...
SOLAR ENERGY ELECTRIC MACHINE
A solar energy device that includes: a first platform, where the first platform includes at least two support posts which support the first platform; a...
High density photo voltaic arrays or panels
The idea is to provide more output per footprint area of a solar cell array. This is accomplished by the arrangement of the individual solar cells and their...
Rail-Less Solar Panel Assembly and Installation Method
In various representative aspects, an assembly for securing array skirts and solar panel modules in an array on a roof by providing a leveling system that...
Sloped Roof Solar Panel Mounting System
A mounting system for supporting a plurality of photovoltaic modules on a sloped support surface, such as a sloped roof, is disclosed herein. The mounting...
Roof Attachment System
A roof attachment system has a stud for retaining a fixture to a roof and is mountable to and sealable with a roof. The attachment system includes a base and a...
BUILDING CONSTRUCTION SURFACE ELEMENT AND BUILDING CONSTRUCTION / BUILDING
CONSTRUCTION SURFACE ARRANGEMENT AND...
A building construction surface element includes a PV-panel and, spaced therefrom, a building construction element including a mounting plate spaced from and...
TEMPERATURE BASED ELECTRIC MACHINE CONTROL
A vehicle having at least two electric machines includes an oil circulation path that circulates oil through the electric machines. A controller commands the...
MOTOR HEALTH MONITORING AND MEDICAL DEVICE INCORPORATING SAME
Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a modulation...
CONTROL CIRCUIT, SEMICONDUCTOR DEVICE, AND CONSTANT VOLTAGE OUTPUT METHOD
According to an embodiment, a control circuit includes a switch circuit and a constant voltage circuit. The switch circuit switches from an OFF state to an ON...
METHOD FOR THE PROTECTION OF ELECTRIC MOTORS FROM CRITICAL OPERATING
Method for the protection of electric motors from critical operating states wherein, as the electric motor is operating, a motor current value and/or a motor...
MOTOR DRIVING APPARATUS
A motor driving apparatus includes an AC-DC conversion unit configured to rectify an AC power supplied from an external AC power source, a DC link unit...
MOTOR DRIVING APPARATUS
A motor driving apparatus includes a rectifying circuit to rectify an AC power supplied from an external AC power source, one pair of film capacitors to output...
INRUSH LIMITER FOR MOTOR DRIVE AC/AC POWER CONVERTERS
A variable frequency motor drive system configured such that the dc link capacitor charge is increased gradually, thus avoiding the above-mentioned transients....
An inverter system is provided. In the inverter system according to the present disclosure, adjacently arranged four switching elements among U phase and V...
MOTOR EFFICIENCY ANALYSIS METHOD FOR MOTOR INVERTER
The present invention discloses a motor efficiency analysis method for motor inverter. The method can be performed via a real-time motor operation efficiency...
INVERTER FOR SUPPLYING LOAD-ADAPTIVE BOOST VOLTAGE
An inverter which supplies a load-adaptive boost voltage and drives an induction motor includes a reference voltage determining unit configured to determine a...
A motor controller of a permanent magnet motor includes an inverter, a torque and flux calculator configured to estimate or measure torque and flux generated...
Voltage Injection-Based Cable Swap Detection
A vehicle includes an electric machine and a controller configured to inject a voltage into the electric machine. The controller measures the currents caused...
APPARATUS AND METHOD FOR CONTROLLING POWER GENERATION OF VEHICLE
An apparatus for controlling power generation of a vehicle includes an alternator for generating electricity using an engine torque. A controller is configured...
Control of Hybrid Permanent Magnet Machine With Rotating Power Converter
and Energy Source
A hybrid permanent magnet machine has a stator including armature windings. A rotor includes permanent magnets, a main field winding, and a rechargeable energy...
CIRCUIT AND METHOD FOR FREQUENCY SYNTHESIS FOR SIGNAL DETECTION IN
AUTOMATIC VOLTAGE REGULATION FOR SYNCHRONOUS...
Automatic voltage regulation is shown involving full wave rectifying a power signal and generating a reference corresponding to an operating voltage level,...
SYSTEM AND METHOD FOR IMPROVED REACTIVE POWER SPEED-OF-RESPONSE FOR A WIND
The present subject matter is directed to a system and method for regulating reactive power in a wind farm connected to a power grid so as to improve reactive...
MOTOR DRIVING DEVICE WITH ROTATION AND STOP SETTING MODE AND THE DRIVING
A motor driving device with stop mode setting and driving method thereof comprises a PWM converting circuit, an oscillator circuit, a first comparator, a...
DIRECT-AXIS CURRENT PROTECTION METHOD AND DEVICE FOR PERMANENT MAGNET
SYNCHRONOUS MOTOR DRIVE SYSTEM
A direct-axis current protection method and device for a permanent magnet synchronous motor drive system. The method includes: pre-calculating the direct-axis...
DRIVE CONTROL DEVICE AND FUEL PUMP DRIVE SYSTEM
A microcomputer of a drive control device for controlling the driving of a brushless motor has a positioning part and a torque acceleration control unit. The...
METHOD FOR DETECTING INITIAL MAGNETIC-POLE POSITION OF ROTOR IN PERMANENT
MAGNET SYNCHRONOUS MOTOR
The method for detecting an initial position of a magnetic pole of a rotor included in a permanent magnet synchronous motor according to an embodiment of the...
INTERMEDIATE CONNECTING DEVICES AND ELECTRONICALLY COMMUTATED MOTORS FOR
Intermediate connecting devices and electronically commutated (ECM) motors for HVAC systems are disclosed, as well as methods for their use within the HVAC...