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Audio amplifier and power supply voltage switching method
An audio amplifier is provided with: an amplifier circuit; a power supply circuit that generates a plurality of power supply voltages; a power supply relay that...
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...
Driver circuit for a power stage of a class-D amplifier
Embodiments of a driver circuit for a power stage of a class-D amplifier and a class-D amplifier are described. In one embodiment, a driver circuit for a power...
Diversity receiver front end system with impedance matching components
Diversity receiver front end system with impedance matching components. A receiving system can include a controller configured to selectively activate one or...
Heterodyne receiver structure, multi chip module, multi integrated circuit
module, and method for processing a...
A heterodyne receiver structure comprises a frequency conversion block arranged to convert an incoming analog radio frequency (RF) signal to an analog...
Alternating anti-parallel diode mixer structure
An apparatus includes a first circuit and a second circuit. The first circuit may be fabricated in a substrate and generally includes a first diode and a second...
Electronic circuits using coupled multi-inductors
Coupled multi-inductors and their applications. An apparatus includes several circuit stages. Each circuit stage includes an inductive element that overlaps...
Method and facility for controlling the internal pressure of a
A method for controlling the internal pressure of a photovoltaic module having a front plate, rear plate, photovoltaic cells, electrical interconnection...
Junction box for solar cell module and method for driving same
The present invention relates to a junction box for a solar cell module which receives a command of a manager from the outside, controls the solar cell module,...
Mounting clips for panel installation
An exemplary mounting clip for removably attaching panels to a supporting structure comprises a base, spring locking clips, a lateral flange, a lever flange,...
Universally mounted solar module
A solar module has a plurality of solar panels framed within a frame member having side frame members connected to end frame members. Each side frame member and...
Solar array column cap
Disclosed herein is a solar array column cap that includes a main body extending between a left side and a right side to define a channel, the channel...
Methods and systems for selecting and programming replacement motors
Methods and systems for replacing HVAC blower motors and other electric motors are disclosed including systems and methods for gathering and storing information...
Power conversion device control device and power conversion device control
Provided are a power conversion device control device and a power conversion device control method, which are capable of reducing harm to other electronic...
An inverter apparatus that includes an inverter that is interposed between an AC rotary electric machine and both a DC power supply and a smoothing capacitor...
Motor apparatus having separate winding systems and master module
A motor apparatus includes a motor having a first active part and a second active part, the first active part having a plurality of separately controllable...
Multiphase motor generator system and control method thereof
A multiphase motor generator system includes a multiphase induction motor having a plurality of separate terminals, a multiphase inverter coupled to a DC link...
Synchronizing an inverter with an alternating voltage source
A method and device are disclosed for synchronizing an inverter with an alternating voltage source. The method includes measuring a current generated by the...
Electrical generator with integrated hybrid rectification system
comprising active and passive rectifiers...
An electrical DC generation system is disclosed. According to one aspect, a system for electrical DC generation includes an electrical machine having multiple...
Motor control device and method for detecting out-of-step
There is provided a motor control device for controlling a stepping motor having at least two coils. The motor control device includes a controller applies a...
Motor drive control device, motor drive control method, and non-transitory
A motor drive control device includes: a deceleration start position calculating unit that calculates a deceleration start position indicating an address at...
Control device of motor, electronic apparatus, recording apparatus, robot,
and control method of motor
A control device of a motor includes detection section that detect counter-electromotive voltages induced in coils by rotation of a rotor, a ...
Method and apparatus for windowless BEMF detection
A zero crossing of a motor current waveform at the terminal of a brushless sensor-less multi-phase DC motor is determined without opening a non-drive period...
Motor drive device
[Object] To effectively improve torque of a motor, the maximum rotation rate in driving with no load, and output at a high rotation rate, while suppressing...
Motor control system and method
A motor control system is disclosed. The motor control system includes a level-shifting unit, a motor unit and a control unit. The level-shifting unit receives...
DC permanent magnet synchronous motor
A DC permanent magnet synchronous motor, including: a motor body including a rotating shaft, a permanent rotor assembly, a stator assembly, and a housing...
Drive circuit for an air bearing motor
The invention relates to a drive circuit for an electric motor having an aerodynamic bearing of the motor shaft, wherein the drive circuit comprises at least...
Embodiments of the invention include micromechanical resonators. These resonators can be fabricated from thin silicon layers. Both rotational and translational...
Energy-harvesting conveyor belts and methods
Energy-harvesting and -storage devices in conveyor belts and methods for molding those devices integrally into modular belt links and for enhancing energy...
Power generating element and power generation device
The present disclosure includes: a magnetostrictive plate including a magnetostrictive material; a yoke around which a coil is wound and which has two ends...
Varying capacitance rotating electrical machine
A varying capacitance rotating electrical machine provides capacitor elements, such as capacitor plates, that move with respect to each other as separated by a...
Rotating cylindrical and spherical triboelectric generators
A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed...
Out-of plane travel restriction structures
The present disclosure includes structures and methods of forming structures for restricting out-of-plane travel. One example of forming such structures...
Method for reducing a number of switching cycles when controlling a
A method for controlling a polyphase inverter that includes a number of half bridges connected into an intermediate voltage circuit and center taps between...
Multi-level half bridge with sequenced switch states
A method for the operation of an electrical circuit taking the form of a multi-level half-bridge (MLHB), and a multi-level half-bridge designed for...
ZVS voltage source inverter
Systems and methods relating to zero voltage switching for inverters. A full bridge inverter is used in conjunction with a passive auxiliary circuit and an...
Multi-level power converter
This is a multi-level converter comprising at least one arm (B) formed of n stages (Et1, Et2, . . . , Etn) mounted in cascade. The first stage (Et1) comprises a...
Non-isolated AC-to-DC converter with fast dep-FET turn on and turn off
Within a non-isolated and efficient AC-to-DC power supply circuit: 1) a dep-FET is turned off to decouple an output voltage V.sub.O node from a V.sub.R node...
Voltage adjusting apparatus
In a voltage adjusting apparatus connected in series to a system, an output of an AC/DC converter thereof is reduced. The apparatus includes a second serial...
Power conversion device, including serial switching element, that
compensates for voltage fluctuations
Aspects of the invention include a step-up/step-down chopper unit, an inverter unit, a rectifier unit, first to third voltage detection means, and a drive...
Method for controlling of a modular converter
A method for controlling a modular converter, having a plurality of M converter cells, including an active AC-to-DC converter operable in one of a plurality of...
DC-DC converter and DC-DC converter system thereof
The present disclosure discloses a DC-DC converter and a DC-DC converter system thereof. The DC-DC converter includes: a power conversion circuit; and a current...
Capacitor arrangement for an intermediate circuit of a voltage converter
The disclosure relates to a capacitor arrangement for an input circuit or intermediate circuit of a voltage transformer comprising at least two capacitors and...
Controlled power supply circuit
A power supply circuit for supplying power to at least two loads which are connected to said power supply circuit comprises a current source which can be...
Forward-based power conversion apparatus
A forward-based power conversion apparatus is provided. When the forward-based power conversion apparatus supplies a plurality of (at least two of) output...
Magnetically coupled reactor and power converter
A magnetically coupled reactor includes a coupled core member, a first coil, and a second coil. The coupled core member includes a first core and a second core...
Adjustable blanking time for overload protection for switch-mode power
A blanking time for a switch-mode power supply controller includes a first blanking time interval and a second blanking time interval. During the first blanking...
A DC-DC converter wherein a series reactor and primary-side terminals of a transformer are connected between output terminals of a full-bridge inverter in which...
Regulated multiple output isolated DC to DC converter
Disclosed examples include multiple output DC to DC converters with a buck converter including a half bridge switching circuit and transformer primary winding...
Bidirectional DC/DC converter
During a dead time, a resonance current generated by a load current that flows in a resonance inductor and a resonance current generated by an excitation...