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Patent # Description
US-9,871,505 Voltage-resistant switch
A voltage-resistant switch is described. The switch comprises a signal input, a first FET transistor with a first channel with an extended drain and a first...
US-9,871,504 Differential phase adjustment of clock input signals
Differential clock phase imbalance can produce undesirable spurious content at a digital to analog converter output, or interleaving spurs on an...
US-9,871,503 Semiconductor integrated circuit, latch circuit, and flip-flop circuit
A semiconductor integrated circuit connected between a first node and a second node includes first to fourth transistors. When a signal at the second node...
US-9,871,502 Mixed-technology combination of programmable elements
The present subject matter relates to systems and methods for arranging and controlling programmable combinations of tuning elements in which more than one form...
US-9,871,501 RF circuit with multiple-definition RF substrate and conductive material void under a bias line
An RF circuit includes a first dielectric material, a signal line and a bias line over a first surface of the first dielectric material, a conductive layer over...
US-9,871,500 Multilayer electronic component
A multilayer electronic component includes a stack and a balun. The stack includes a plurality of stacked dielectric layers and conductor layers. The balun is...
US-9,871,499 Multi-band impedance tuners using weakly-coupled LC resonators
Radio frequency (RF) filter structures and related methods and RF front-end circuitry are disclosed. In one embodiment, an RF filter structure includes a first...
US-9,871,498 RF interference choke device and RF testing apparatus incorporating the same
A radio frequency (RF) interference choke device includes a planar dielectric board formed with two first slots and two second slots that extend in a lengthwise...
US-9,871,497 Processing audio signal to produce enhanced audio signal
A signal processing apparatus includes a transform unit configured to orthogonally transform an audio signal; an analysis unit configured to analyze the audio...
US-9,871,496 Personalized adjustment of an audio device
Described herein are apparatuses, systems and methods that facilitate user adjustment of an audio effect of an audio device to match the hearing sensitivity of...
US-9,871,495 Thermal compensation for amplifiers
Systems and methods for providing thermal compensation for amplifiers are described. In some embodiments, an electronic circuit may include a main amplifier and...
US-9,871,494 Operational amplifier with class AB output
An operational amplifier includes an output stage, an input stage, a first auxiliary amplifier, and a second auxiliary amplifier. The output stage includes a...
US-9,871,493 Multistage amplifier
A first transistor has a first terminal and a second terminal. A second transistor has a third terminal, a fourth terminal and a fifth terminal electrically...
US-9,871,492 Analog amplifier for recovering abnormal operation of common mode feedback
An analog amplifier is provided. The analog variable amplifier includes a first amplifier stage configured to amplify a bias current to output a first output...
US-9,871,491 Method and system for linearizing an amplifier using transistor-level dynamic feedback
The present disclosure describes a method and system for linearizing an amplifier using transistor-level dynamic feedback. The method and system enables...
US-9,871,490 Multi-band/multi-mode power amplifier with signal path hardware sharing
Existing multi-band/multi-mode (MB/MM) power amplifiers (PAs) use separate signal paths for the different covered frequency bands. This results in a large...
US-9,871,489 Arrangement and method for radio-frequency (RF) high power generation for compensating a failed power amplifier...
An arrangement and method for radio-frequency (RF) high power generation which compensate for a failed power amplifier module includes at least one power...
US-9,871,488 Dual-mode power amplifier
A method and apparatus for transmitting a communication signal through a dual-mode power amplifier may include amplifying a communication signal by a first...
US-9,871,487 Harmonic rejection translational filter
A harmonic translational filter includes a first path, a second path and a signal combiner. The first path has a first translational filter that is driven by a...
US-9,871,486 Inverter system
An inverter system includes: an inverter configured to receive utility AC power and step it up to a high-voltage power necessary for operation of a motor and...
US-9,871,485 Stepper motor driver circuit
The stepper motor driver circuit controls driving of a stepper motor. The stepper motor driver circuit generates a driving current having a pseudo-sinusoidal...
US-9,871,484 Cordless power tool system
A power tool system includes a first power tool having a first power tool rated voltage, a second power tool having a second power tool rated voltage that is...
US-9,871,483 Controller for rotary electric machine drive apparatus
There is provided a controller for a rotary electric machine drive apparatus capable of reducing data-processing load and amount of memories required for a data...
US-9,871,482 Power conversion device
A power conversion device includes a high-pass filter for extracting an AC component of voltage Vdc of a DC link section, a multiplier for multiplying output...
US-9,871,481 AC rotating machine control device and electric power steering device equipped with same
This AC rotating machine control device includes: power limiting means 6 for limiting drive power supplied for driving the AC rotating machine; and power feed...
US-9,871,480 Power supply control apparatus, vehicle and method of controlling power supply
If a total power consumption of the high- and low-voltage auxiliary machinery is greater than a first reference value when the high-voltage secondary battery is...
US-9,871,479 Fault detection system for isolated two-switch exciter drive gate driver
A generator control unit (GCU) includes a fault detection system configured to generate a direct current (DC) voltage signal based on a difference of a...
US-9,871,478 Moving body system and method for driving moving body
In order to prevent the length of the movement path from being limited to the pitch of a magnet, a moving body (vehicle) includes two motors disposed in...
US-9,871,477 Motor speed control circuit and control method thereof
A motor speed control circuit including a voltage-dividing module, a first analog-to-digital converter, a second analog-to-digital converter and an operation...
US-9,871,475 PWM motor drive device
A PWM motor drive device includes: a time counter that counts a time of a polarity of a motor phase signal; a register that retains the time; a zone setting...
US-9,871,474 Method for synchronizing a synchronous reluctance electric machine
A method of synchronizing a synchronous reluctance electric machine wherein the machine has no speed and/or residual magnetization voltage sensor and includes...
US-9,871,473 System and method for electrostatic clamping of workpieces
A system and method for clamping a workpiece to an electrostatic clamp (ESC) comprises placing a first workpiece on a surface of the ESC and applying a first...
US-9,871,472 Energy-harvesting apparatus with plural mechanical amplifiers
An energy harvester is provided for harvesting energy, and in particular electrical energy from an input vibration such as an ambient vibration. The energy...
US-9,871,471 Oscillatory wave drive device and optical apparatus
An oscillatory wave drive device has an oscillatory wave driving unit having an electromechanical energy conversion element having drive phases and a detection...
US-9,871,470 Piezoelectric vibrator element, and piezoelectric vibrator
The piezoelectric vibrator element is miniaturized, and at the same time, the vibration leakage is suppressed. The piezoelectric vibrator element is formed so...
US-9,871,469 Piezoelectric vibrator element, and piezoelectric vibrator
A piezoelectric vibrator element includes a pair of vibrating arms extending from a base, and having a groove on each of opposing principal surfaces in the...
US-9,871,468 Vibration-type driving device
A vibration-type driving device according to the present invention includes a plurality of vibrators in which contact portions perform an elliptical motion...
US-9,871,467 Resonant converters including flying capacitors
Unique systems, methods, techniques and apparatuses of zero-voltage transition pulse width modulation resonant converters are disclosed. One exemplary...
US-9,871,466 Inverter switching frequency control method and apparatus
An inverter control method, apparatus, and system are provided. The method in the embodiments of the present invention includes obtaining power distribution...
US-9,871,465 Semiconductor device including positive, negative and intermediate potential conductor plates
A semiconductor device can include an insulating substrate on which at least four semiconductor elements forming a three-level power conversion circuit are...
US-9,871,464 Ground structure for control unit
A control unit includes a power supply board on which a control power-supply circuit that generates a control voltage is mounted, a control board on which a...
US-9,871,463 Power module
A power module includes a substrate, a first sub-module and a second sub-module. The substrate includes plural first conducting parts, plural second conducting...
US-9,871,462 Regenerative variable frequency drive with auxiliary power supply
A regenerative variable frequency drive includes an active converter connected to a DC bus that is connected to a first inverter that converts DC power to...
US-9,871,460 Power source switching device and storage battery system
A third relay switches between an output of a first AC power source fed via a first relay and an output of a second AC power source fed via a second relay, and...
US-9,871,459 Method and apparatus for deriving current for control in a resonant power converter
An apparatus, method, and system for measuring current within a converter. The converter including a resonant tank circuit with a capacitor, the resonant tank...
US-9,871,458 Resonant rectifying device, control method and apparatus for resonant rectifying
A resonant rectifying device includes a transformer having a primary winding and a secondary winding, a primary-side circuit coupled to the primary winding of...
US-9,871,457 Switching power supply device
A switching power supply device of the present disclosure includes a device connection state detection circuit that detects a connection state in a load device...
US-9,871,456 Voltage conversion device and method of operation
A voltage conversion device includes a transformer and at least one transistor. The transformer has a primary side and a secondary side, the secondary side...
US-9,871,455 Current resonance type power supply device
The present invention includes: a series circuit formed of a reactor Lr, a primary winding P of a transformer T, and a capacitor C2; a full-wave ...
US-9,871,454 Method of controlling synchronous rectifier metal-oxide-semiconductor with pulse transformer
The present disclosure provides an isolated power supply and a method of controlling the isolated power supply. The isolated power supply includes a primary...
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