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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...
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...
A semiconductor amplifier includes a semiconductor amplifying element, an output terminal, an output matching circuit, and an output bias circuit. The output...
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...
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)...
Output impedance compensation of a pseudo-envelope follower power
A switch mode power supply converter, a parallel amplifier, and a parallel amplifier output impedance compensation circuit are disclosed. The switch mode power...
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...
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...
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...
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...
Control apparatus for synchronous rotary machine enabling suppression of
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Connecting an inverter in a solar power plant with shifted potential
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Current limit module and control module for power converters and
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
System and method for single phase transition for multiphase DCDC
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....
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...
Multi-function power regulator for prioritizing functions and allocating
A multi-function power regulator for prioritizing functions and allocating resources thereof, the multi-function regulator including a plurality of resources...
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...
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...