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Patent # Description
US-1,005,0596 Using averaged audio measurements to automatically set audio compressor threshold levels
Various aspects of this disclosure describe setting an audio compressor threshold using averaged audio measurements. Examples include calculating one or more...
US-1,005,0595 Embedded speaker protection for automotive audio power amplifier
A circuit can be used in a speaker system. The circuit includes an amplifier with an output configured to be coupled to a speaker. An offset comparator has an...
US-1,005,0594 Playback device group volume control
Embodiments are provided for satellite volume control. An example method includes receiving an input at a playback device to adjust a volume for a plurality of...
US-1,005,0593 Power amplifier module
A power amplifier module includes a first bipolar transistor configured to amplify a radio frequency signal and output an amplified signal and a second bipolar...
US-1,005,0591 LC network for a power amplifier with selectable impedance
An amplifier is configured to amplify an RF signal as between an input terminal and an output terminal across a wideband frequency range. A first LC network is...
US-1,005,0590 Power amplifier
A power amplifier (PA) cell is coupled to an input signal source, and includes a transistor coupled to the load; a first inductor coupled to a gate of the...
US-1,005,0589 Startup pop minimization
A switching power conversion system and a method for start-up pop minimization in an audio amplifier assembly are disclosed. The switching power conversion...
US-1,005,0588 Doherty amplifier circuits
A Doherty amplifier circuit comprising: a splitter having: a splitter-input-terminal for receiving an input signal; a main-splitter-output-terminal; and a...
US-1,005,0587 Power amplifier circuit and semiconductor integrated circuit
A power amplifier circuit includes unit amplifiers (unit PAs) whose output terminals are connected to one another, among which a number of unit PAs to be...
US-1,005,0586 Low noise and low power voltage-controlled oscillator (VCO) using transconductance (g.sub.m) degeneration
Certain aspects of the present disclosure generally relate to voltage-controlled oscillators (VCOs) using a lowered or an adjustable negative transconductance...
US-1,005,0585 Ultra-low power crystal oscillator with adaptive self-start
A crystal oscillator is started in a high power mode for a certain period of time to ensure starting oscillation with average grade crystals, then once the...
US-1,005,0584 Cooling apparatus for solar panels
A solar panel cooling system and apparatus. The cooling system includes a shroud that is coupleable to a back side of a solar panel. The shroud encloses a space...
US-1,005,0583 Solar generator with large reflector dishes and concentrator photovoltaic cells in flat arrays
An apparatus is disclosed for generation of electricity using sunlight focused onto multi junction photovoltaic cells having high conversion efficiency. The...
US-1,005,0582 Self-charging terminal and photovoltaic panel cleaning equipment having same
A self-charging terminal, which includes a terminal fixing block, a sloped conductive member and a sloped conductive member mounting member is disclosed. The...
US-1,005,0581 Frame profile moulding for solar cell laminate, framed solar module and fastening system for solar modules
A frame profile (1) for a solar cell laminate (10) includes a laminate clamping section (2), which comprises two parallel clamping feet (2a, 2b) configured...
US-1,005,0580 Supporting structure for waterborne photovoltaic power generation
A supporting structure for waterborne photovoltaic power generation is provided. The supporting structure includes at least one floating bracket. The floating...
US-1,005,0579 Damped bearing of a rotor shaft
The invention relates to an arrangement for the damped bearing of a rotor shaft (1) of an electric machine. The invention also relates to an electric machine...
US-1,005,0578 Motor control system, initial charger, and method for detecting failure
A motor control system includes a DC-to-DC converter including a semiconductor switch and a reactor that cooperates with the switch to convert input-side DC bus...
US-1,005,0577 Vehicle cooling-fan motor/inverter system, control method therefor, and program therefor
Included are: a motor control device that has a switching element, that converts DC power supplied from a high-voltage power supply into three-phase AC power,...
US-1,005,0576 Inverter control device and air conditioner
An inverter control device that controls an inverter unit that converts a DC voltage from a converter unit to an AC voltage and supplies the AC voltage to the...
US-1,005,0575 Partitioned motor drive apparatus for subsea applications
A system includes an above-surface control unit and a subsea motor drive unit. The above-surface control unit includes a variable speed motor control circuit...
US-1,005,0574 Management of motor regeneration
A method and apparatus for controlling regeneration for a motor. An instantaneous voltage provided by a power supply to the motor is identified using a voltage...
US-1,005,0573 Wind power generation system including doubly-fed generator and stator-connected auxiliary converter
A wind power generation system and a control method thereof are provided herein. The wind power generation system includes a doubly-fed generator, a...
US-1,005,0572 Power tool with electric motor and auxiliary switch path
A power tool is configured to receive power from a power supply. The power tool may include a rectifier that may output a rectified signal to a DC power bus. A...
US-1,005,0571 Motor driving appartus and home appliance including the same
A motor driving apparatus includes an inverter to convert a direct current (DC) voltage into an alternating current (AC) voltage through a switching operation...
US-1,005,0570 Motor control circuit and method of use
A motor control circuit is provided, including a first circuit, a second circuit, and a microcontroller. The first circuit is configured to conduct an analog...
US-1,005,0569 Inverter control device and inverter control method
An inverter control device that controls a multiple of inverters configured to use the same positive and negative direct current voltage bus lines connected to...
US-1,005,0568 Electronically controlled switch for an electric motor
A system in which the operation of an electric motor is controlled by electronically controlled switches. The system includes the motor having a run winding and...
US-1,005,0567 Flexible energy conversion device using liquid
The present invention relates to a flexible energy conversion device using a liquid, and more specifically, to a method and a device for converting mechanical...
US-1,005,0566 Generator for automobile using flexible piezoelectric device
According to an embodiment of the present disclosure, a generator using a flexible piezoelectric device comprises a tire with a hollow tube structure, a...
US-1,005,0565 Piezoelectric energy harvester and wireless switch including the same
Provided are a piezoelectric energy harvester and a wireless switch including a piezoelectric energy harvester. The piezoelectric energy harvester uses energy...
US-1,005,0564 Vibration actuator and image forming apparatus mounting the vibration actuator thereon
A vibration actuator, which can be stably driven and has high durability, is provided with a vibrating body having an elastic body, including a ferrous metal,...
US-1,005,0562 Triboelectric energy generator using control of dipole polarization direction and method of fabricating thereof
Provided are a triboelectric energy generator using a control of a dipole polarization direction and a method of fabricating the same. The present invention...
US-1,005,0561 Three-level inverter switching
Inverter circuit operation for managing power factor changes is provided. Various modes of switch timing may be employed near zero-voltage crossings. Inverter...
US-1,005,0560 Inverter circuit with current detection circuitry
An inverter circuit with a current detection circuitry includes a main bridge circuit connected between the pair of DC input nodes, the main bridge circuit...
US-1,005,0559 Control architecture with improved transient response
A power interface device includes a main switching converter, an auxiliary switching converter, a feedback sense circuit, an error amplifier, a high pass...
US-1,005,0558 Alternating current (AC) inverter and method of controlling the same
An alternating current (AC) inverter includes a converter circuit configured to convert a direct current (DC) voltage to an AC voltage, and output terminals,...
US-1,005,0557 Energy harvesting apparatus and a method for operating an energy harvesting apparatus
In various embodiments of the present disclosure, there is provided an energy harvesting apparatus, including: an energy harvester for generating electric power...
US-1,005,0556 Voltage source converter and control thereof
Methods and apparatus for hard switching of Alternate-Arm-Converter voltage source converters. Such voltage source converters have a phase limb with a high and...
US-1,005,0555 Power supplies having synchronous and asynchronous modes of operation
The present disclosure relates to power supplies and control methods for power supplies. Example power supplies include an output terminal, a transformer having...
US-1,005,0554 Method and device for controlling Vienna-like three-level circuit
A method and a device for controlling a Vienna-like three-level circuit are provided. The method includes: detecting an inductor current of an inductor...
US-1,005,0553 Rectifier circuit including a self-clamping transistor
A rectifier circuit is described, which includes a cathode terminal, an anode terminal and, between the cathode terminal and the anode terminal, an electronic...
US-1,005,0552 High-frequency isolation alternating/direct current conversion circuit and control method thereof
A high-frequency isolation alternating/direct current conversion circuit and a control method thereof are disclosed. The conversion circuit includes an...
US-1,005,0551 Arrangement, method and computer program product for limiting circulating currents
An arrangement, method and computer program product are provided for limiting circulating currents in a converter converting between AC and DC. The converter...
US-1,005,0550 High-voltage generation device and X-ray generation device
Downsizing a Cockcroft-Walton high-voltage generation device may cause discharge from the connections of respective components to potentially lack insulation...
US-1,005,0549 Power converter unit including a rectifier and an active power filter
A power converter unit comprising a rectifier arranged to receive AC input from a variable or fixed frequency AC power source and an active power filter with an...
US-1,005,0548 No-break power transfer
A method and apparatus for transferring power to a load. An AC-to-DC converter output for an AC-to-DC converter is connected to a filter circuit input in a...
US-1,005,0547 Quiescent power supply
A quiescent power supply including an AC/DC converter, a switch, an energy storage device, and a controller is disclosed. The switch is electrically coupled to...
US-1,005,0546 Apparatus for controlling LLC converter
An apparatus for controlling an LLC converter is provided. The apparatus includes a current controller that determines a first switching frequency control value...
US-1,005,0545 True soft switching by timed steering of a current source
A method for operation of a single-ended forward converter to achieve "true soft switching" The method includes injecting, with a current source and in...
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