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Patent # Description
US-9,401,683 Vehicular active sound effect generating apparatus
A sound effect generating apparatus includes a delay unit for giving a delay to a sound effect output from a rear speaker depending on either an accelerator...
US-9,401,682 Structure for a radio frequency power amplifier module within a radio frequency power amplifier package
A RF power amplifier module comprises a die with a RF power transistor and the RF power transistor comprises a control terminal, a transistor output terminal...
US-9,401,681 Semiconductor amplifier
A semiconductor amplifier includes a semiconductor amplifying element, an output terminal, an output matching circuit, and an output bias circuit. The output...
US-9,401,680 Temperature dependent amplifier biasing
An apparatus includes a first bias circuit configured to generate a first current that varies with temperature according to a first slope. The apparatus also...
US-9,401,679 Apparatus and method for improving power supply rejection ratio
A compensation capacitor can be added to an amplifier for stability. Disclosed are systems and methods for improving the power supply rejection ratio (PSRR)...
US-9,401,678 Output impedance compensation of a pseudo-envelope follower power management system
A switch mode power supply converter, a parallel amplifier, and a parallel amplifier output impedance compensation circuit are disclosed. The switch mode power...
US-9,401,677 Split transformer based digitally controlled oscillator and DC-coupled buffer circuit therefor
A novel and useful LC-tank digitally controlled oscillator (DCO) incorporating a split transformer configuration. The LC-tank oscillator exhibits a significant...
US-9,401,676 Solar photovoltaic-thermal collector assembly and method of use
A solar collector assembly includes a photovoltaic panel having first and second sides, a frame, and a first gas-filled chamber on the first side of the...
US-9,401,675 Vehicle AC generator control apparatus
A vehicle AC generator control apparatus, the rotor of an vehicle AC generator 1 of which is coupled through a torque transfer member with the output axle of an...
US-9,401,674 Single-shunt current sensing for multi-phase motor
A motor controller for providing a three-phase alternating current (AC) signal to a three-phase motor. The motor controller uses current feedback from a single...
US-9,401,673 Control apparatus for synchronous rotary machine enabling suppression of rotor vibration
In a synchronous rotary machine such as a synchronous motor, respective values of the number of pole pairs of the rotor and the number of stator slots are...
US-9,401,672 Brushless motor driving circuit and brushless motor driving system
The brushless motor driving circuit includes a peak hold circuit that outputs a second voltage obtained by holding a peak of a first voltage that is based on a...
US-9,401,671 Electric power conversion circuit
In a three phase inverter device, a smoothing capacitor, a bus bar at a positive electrode side and a bus bar at a negative electrode side are formed on a first...
US-9,401,670 Electric pump
An electric pump includes a pump body, a sensorless brushless motor, and a control portion controlling the motor to perform a constant current control and a...
US-9,401,669 Motor controller for synchronously controlling multiple motors
A motor controller includes: a converter for converting an alternating current to a direct current; a first inverter for converting the direct current in a...
US-9,401,668 Materials for electroadhesion and electrolaminates
An electroadhesive device includes an outer surface adapted to interface with a surface of a foreign substrate, a plurality of electrodes, and a semi-conductive...
US-9,401,667 Vibration-type driving device
A vibration-type driving device includes a vibrator including an electro-mechanical transducer and an elastic portion supported by a shaft, and a rotor the...
US-9,401,666 Vibration actuator, and lens barrel and camera provided with same
A vibration actuator that is easy to manufacture and has good driving performance, and a lens-barrel and a camera provided with the same. The vibration actuator...
US-9,401,665 Electric power conversion apparatus
The disclosure relates to an electric power conversion apparatus, and capable of determining a minimum output voltage of a boost converter based on a voltage of...
US-9,401,664 Circuits and techniques for interfacing with an electrical grid
Circuit topologies and control methods for a multi-phase grid interface are described. In at least one embodiment, a power conversion circuit is provided that...
US-9,401,663 Power converter circuit with AC output
A power converter circuit includes a synchronization circuit configured to generate at least one synchronization signal. A series circuit includes a number of...
US-9,401,662 Inverter with an AC interface for the connection of AC modules
An inverter for feeding a grid-compatible AC voltage into a grid is described, wherein the inverter includes an inverter bridge for converting a DC voltage to a...
US-9,401,661 Connecting an inverter in a solar power plant with shifted potential center point
The invention relates to a process of connecting an AC output of a transformerless inverter of a solar power plant to an internal AC power grid at an input side...
US-9,401,660 Monolithic AC/DC converter for generating DC supply voltage
An integrated circuit (IC) comprises a rectifier/regulator circuit coupled to receive an ac source voltage and output a regulated dc voltage. The...
US-9,401,659 High voltage analog switch
A high voltage analog switch can be used in medical ultrasound applications. The high voltage analog switch can pass high voltage transducer excitation signals...
US-9,401,658 Power supply apparatus and method of generating power by the same
A power supply apparatus includes a power source, power converters and an output connector. The power converters are configured for converting an input power...
US-9,401,657 Input voltage sensor responsive to load conditions
A power converter controller includes a switch driver circuit coupled to generate a drive signal to control switching of a power switch to control a transfer of...
US-9,401,656 Method of controlling power conversion apparatus
A voltage of a reactor is detected. a correction is made on the basis of the voltage of the reactor so that a first voltage control rate command which is a...
US-9,401,655 Power conversion apparatus with inverter circuit and series converter circuit having power factor control
An inverter circuit including a DC capacitor is connected in series to an AC power supply, and at the stage subsequent to the inverter circuit, a smoothing...
US-9,401,654 Device for modifying an AC voltage, AC voltage having a superimposed data signal, method for data transmission,...
A device for modifying an AC voltage has an input for connecting to an AC voltage source and an output for connecting to a load circuit. An interrupter is...
US-9,401,653 Power supply with switching converter
Circuits and techniques for improving power converter efficiencies and controllability are disclosed. For example, a first converter stage includes a push-pull...
US-9,401,652 Primary side regulator
A primary side regulator according to an embodiment includes a power switch connected to a primary winding, a secondary winding configured to be insulated and...
US-9,401,651 Transformer sub-circuit
A transformer sub-circuit for use in an electrically operated vehicle includes a bridge circuit which has at least four MOSFETs and capacitors connected in...
US-9,401,650 Power supply apparatus
A power supply apparatus is provided. The power supply apparatus includes two power suppliers connected in parallel, and the two power suppliers supply electric...
US-9,401,649 Switching converter
When a current detection voltage V.sub.CS that corresponds to a voltage drop across a detection resistor R.sub.CS exceeds a first threshold value V.sub.ADIM, a...
US-9,401,648 Current limit module and control module for power converters and associated method
A power converter having a current limit module and a method for controlling the power converter. The power converter converts an input voltage to an output...
US-9,401,647 Switching mode power supply and the control method thereof
A switching mode power supply, having: a power switch; an energy storage component coupled to the power switch; a current sense resistor configured to generate...
US-9,401,646 Power converter having a synchronous rectifier
In an aspect, the present invention provides a high frequency switching power converter. The high frequency switching power converter may include a plurality of...
US-9,401,645 Electrical voltage converter circuits
The preferred embodiments of the present invention change the switching circuits in switched-mode voltage converter circuits. Instead of switching at full...
US-9,401,644 Trench MOSFET having an independent coupled element in a trench
A trench MOSFET is disclosed that includes a semiconductor substrate having a vertically oriented trench containing a gate. The trench MOSFET further includes a...
US-9,401,643 Bias-temperature induced damage mitigation circuit
A circuit that regulates electrical current flow through an integrated circuit involves a sequencing circuit connected to a clock signal generator, the...
US-9,401,642 Switching power-supply device
A switching power-supply device configured to convert and output a first direct voltage supplied to a second direct voltage by alternately turning on and off a...
US-9,401,641 Systems and methods for self-calibration of a voltage regulator
A method may include causing a first test current to be delivered for a period of time from a phase of a voltage regulator to a load coupled to the voltage...
US-9,401,640 Voltage droop control in a voltage-regulated switched mode power supply
A switched mode power supply (SMPS) comprising a controller configured to control switching of the SMPS to regulate an output voltage at an output of the SMPS...
US-9,401,639 Injection locked phasing for a peak-valley multiphase regulator
A system and method capable of injection locking the phases of a peak-valley multiphase regulator includes comparing an output voltage error signal with a ramp...
US-9,401,638 System and method for single phase transition for multiphase DCDC converters
A DCDC converter includes a controller, an up/down counter, a first power stage and a second power stage. The controller generates an up/down control signal....
US-9,401,637 Switching regulator with adaptive PWM/PFM modulator
A switching regulator controller for a buck switching regulator incorporates a multi-mode adaptive modulator configured to automatically select between a first...
US-9,401,636 Multi-function power regulator for prioritizing functions and allocating resources thereof
A multi-function power regulator for prioritizing functions and allocating resources thereof, the multi-function regulator including a plurality of resources...
US-9,401,635 Switching power supply for a load in stanby mode
A switching power supply includes power factor correction circuitry and a standby output converter. One or more loads may be coupled to one or more outputs of...
US-9,401,634 Saturation prevention in an energy transfer element of a power converter
A controller for use in a power converter includes logic circuits to turn on and off a switch to regulate an output quantity. A first integrating capacitor is...
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