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US20150333709 POWER COMBINING CIRCUIT AND POWER COMBINING METHOD  
A power-combining circuit at least equipped with: a plurality of amps, named first and second through n-th amps (PA1, PA2-PAn), for amplifying inputted high-frequency power; a plurality of 3...
US20150333708 CLASS-D AMPLIFIER  
In a class-D amplifier, oscillation phenomenon is suppressed in a high RF range and surge voltage is reduced. An oscillation absorption circuit is connected on the power supply side of the class-D...
US20150333707 METHOD FOR HIGH-FREQUENCY AMPLIFIER USING POWER GAIN-BOOSTING TECHNIQUE  
The present invention provides a power gain-boosting technique for an amplifier in order to compensate for the decrease of Gmag in a transistor at high frequencies. A power gain-boosting technique...
US20150333706 RADIO FREQUENCY POWER AMPLIFIER CIRCUIT  
An RF power amplifier circuit has an input terminal for receiving an input signal having an input power, and an output terminal for outputting an output signal. The RF power amplifier circuit...
US20150333705 HIGH SPEED, RAIL-TO-RAIL CMOS DIFFERENTIAL INPUT STAGE  
An apparatus is provided, comprising a single-ended input stage with signals IN_P & IN_N as input and OUT_P & OUT_N as output., wherein the differential input controlled by transistors P1-3 and...
US20150333704 Method for Class-B Amplifier Mismatch Correction  
A calibration solution for a power amplifier array comprising a plurality of amplifier cells is presented that improves the linearity and efficiency of the power amplifier, especially when only a...
US20150333703 VARIABLE SWITCHED DC-TO-DC VOLTAGE CONVERTER  
A voltage converter can be switched among two or more modes to produce an output voltage tracking a reference voltage that can be of an intermediate level between discrete levels corresponding to...
US20150333702 RADIO FREQUENCY AMPLIFYING CIRCUIT AND POWER AMPLIFYING MODULE  
An radio frequency amplifying circuit includes an amplifying transistor configured to amplify a radio frequency signal input to a base of the amplifying transistor via a matching network to output...
US20150333701 Phase-Modulated Load Apparatus and Method  
Methods and apparatus are provided to improve the efficiency of an outphasing amplifier through modulating the phase angle of a reflected signal in the outphasing amplifier. An outphasing...
US20150333700 AGGREGATED SPIN-TORQUE NANO-OSCILLATORS  
A nano-oscillator magnetic wave propagation system has a group of aggregated spin-torque nano-oscillators (ASTNOs), which share a magnetic propagation material. Each of the group of ASTNOs is...
US20150333699 VIBRATION GENERATING APPARATUS AND ELECTRONIC APPARATUS INCLUDING THE SAME  
There are provided a vibration generating apparatus and an electronic apparatus including the same. The vibration generating apparatus includes: a housing having an internal space; an elastic...
US20150333698 Method and Apparatus Having Enhanced Oscillator Phase Noise Using High Vt MOS Devices  
A voltage-controlled oscillator (VCO), includes a resonator circuit connected to receive an input voltage and having a first output node and a second output node; and at least one cross-coupled...
US20150333697 CIRCUITS AND METHODS FOR INCREASING OUTPUT FREQUENCY OF AN LC OSCILLATOR  
Disclosed are circuits and methods for increasing an output frequency of an inductance-capacitance (LC) oscillator. In some embodiments, the LC oscillator can be implemented as a...
US20150333696 System and Method for a Voltage Controlled Oscillator  
In accordance with an embodiment, a voltage controlled oscillator (VCO) includes a VCO core having a plurality of transistors, a bias resistor coupled between collector terminals of the VCO core...
US20150333695 VOLTAGE CONTROLLED OSCILLATOR  
A voltage controlled oscillator (VCO) comprising a first supply node, a second supply node, an oscillation transistor, a biasing network, an output node and a feedback network is described. The...
US20150333694 CRYSTAL OSCILLATOR STARTUP TIME REDUCTION  
A circuit includes a crystal oscillator to generate an output frequency for a circuit. A driving oscillator generates a startup signal having a driving frequency that is provided to activate the...
US20150333693 METHOD AND APPARTUS FOR MEASURING SOLAR CELLS  
A method of measuring solar cells, wherein a voltage (U) or a current (I) is applied to a solar cell, and a current (I) and voltage (U), respectively, resulting therefrom is measured, and wherein...
US20150333692 Distributed Power Harvesting Systems Using DC Power Sources  
A photovoltaic panel with multiple photovoltaic sub-strings including serially-connected photovoltaic cells and having direct current (DC) outputs adapted for interconnection in parallel into a...
US20150333691 ELASTIC SHADING TEXTILE COMPRISING PHOTOVOLTAIC ELEMENTS, AND CORRESPONDING MULTIPLE GLAZING  
A shading textile is characterized in that it comprises a plurality of strip-shaped photovoltaic lamellas which, aligned next to one another or spaced apart from one another in their longitudinal...
US20150333690 PHOTOVOLTAIC TILE  
The invention concerns a photovoltaic tile free from wires and respective connectors for the electrical connections among tiles. The electrical connections are made by bushings integrated in the...
US20150333689 POWER CONVERSION APPARATUS, POWER CONVERSION METHOD, AND MOTOR SYSTEM  
An efficient and reliable power conversion method for converting an input voltage which is a single-phase AC voltage into output voltages forming a two-phase AC voltage includes: receiving an...
US20150333688 MOTOR CONTROL DEVICE AND METHOD FOR CONTROLLING THE SAME  
When detecting an amount of noise current generated in an inverter and flowing into a noise filter, sampling the detection values with an interval of a carrier frequency, determining whether...
US20150333687 INVERTER DEVICE AND PWM SIGNAL CONTROL METHOD  
A duty ratio calculation section (5a) of this device calculates target duty ratios of respective phases on the basis of a motor current value. When the target duty ratio of an arbitrary phase...
US20150333686 CURRENT CONTROL APPARATUS FOR THREE-PHASE ROTARY MACHINE  
In an apparatus, a synchronizing unit synchronizes a measurement timing of values of first and second phase currents by a current sensor with a measurement timing of a rotational angle of a rotor...
US20150333685 QUASI VECTOR MOTOR CONTROLLER  
An apparatus includes a switch module that selectively turns on a switch to connect an input power conductor connected to a voltage source to a motor in a sequence. The switch for each phase is...
US20150333684 LINEAR ACTUATOR FORCE MATCHING USING BACK EMF  
A system includes a plurality of actuators configured to provide forces to an actuatable member to actuate the member between a first position and a second position during an actuation mode. The...
US20150333683 MOTOR CONTROL APPARATUS AND MOTOR CONTROL METHOD  
A motor control apparatus has an inverter that applies a voltage to an AC induction motor to be driven, a command value calculator that calculates a command value of an AC voltage outputted from...
US20150333682 MOTOR CONTROL DEVICE  
To achieve smooth switching of control without fluctuations in speed and torque, an excitation current command is allowed to transit linearly or in accordance with the function of speed between a...
US20150333681 APPARATUS FOR CONTROLLING CONTROLLED VARIABLE OF ROTARY MACHINE TO COMMAND VALUE  
In a control apparatus, an interference-reduction current calculator calculates, as an interference reduction current, a component of a current vector in a coordinate axis in a rotating coordinate...
US20150333680 DUAL COIL GENERATOR  
A vehicle electrical system comprises a generator which provides electrical power to an electrical load. The generator includes two field coils. A first switch circuit is coupled with the first...
US20150333679 Wound Field Synchronous Machine with Resonant Field Exciter  
A brushless field exciter for wound synchronous machines that uses the resonance of the leakage inductance and a capacitor in a resonant field exciter to transfer energy to the rotating field...
US20150333678 CONVERTER AND OPERATING METHOD THEREOF  
A converter and an operation method thereof are provided. A converter interconnected with a wind power generation farm includes a power monitor unit configured to detect a direct-current voltage...
US20150333677 WIND TURBINE HAVING IMPROVED OVERVOLTAGE PROTECTION  
A wind turbine comprises a wind rotor, a generator driven by the wind rotor, a converter, wherein the generator and the converter generate electrical energy output via a connecting line with an...
US20150333676 ELECTRONIC SWITCH CONTROLLER, ELECTRONIC SWITCH CONTROL METHOD, ELECTRONIC SWITCH AND ELECTRONIC DEVICE  
An electronic switch controller, an electronic switch control method, an electronic switch and an electronic device are disclosed. The processor comprises voltage-stabilized power supplies, a...
US20150333675 METHODS AND SYSTEMS TO IMPROVE DC MOTOR COOLING FAN EFFICIENCY WITH PULSE WIDTH MODULATION FREQUENCY VARIATION  
Methods, systems and a vehicle are provided for. The method provides for controlling pulse width modulation by a transistor based on the speed of a motor and a transfer function. The system...
US20150333674 SEMICONDUCTOR DEVICE AND DRIVING SYSTEM  
An output MOS transistor has a drain connected with a power supply and a source connected with an output terminal. The short-circuit MOS transistor has a source connected with the output terminal....
US20150333673 SENSORLESS DRIVE DEVICE, CONTROL METHOD AND PROGRAM FOR BRUSHLESS DC MOTOR  
The purpose of the present invention is to reduce noise by controlling vibration due to rotation fluctuation, and to consume only current required for maintaining the rotation by bringing the...
US20150333672 ROTATING ELECTRIC MACHINE CONTROL SYSTEM  
A rotating electric machine control system has a power control unit (PCU) and a control section separately disposed therein. The apparatus receives a trigger signal from a communicator of the PCU...
US20150333671 ROTATING ELECTRIC MACHINE CONTROL SYSTEM  
A rotating electric machine control system having a power control unit equipped with a voltage converter and a controller. The controller is equipped with an operation unit having a time corrector...
US20150333670 SYNCHRONOUS MOTOR CONTROL DEVICE FOR ELECTRIC AUTOMOBILE  
A synchronous motor control device for an electric vehicle is provided which is able to reduce torque ripple through simple calculation and is excellent in practicability. In a synchronous motor...
US20150333669 HVAC ACTUATOR WITH SOFT STALL CONTROL  
A actuator in a HVAC system includes a motor and a drive device driven by the motor. The drive device is coupled to a movable HVAC component for driving the movable HVAC component between multiple...
US20150333668 VARIABLE FREQUENCY DRIVE ACTIVE HARMONIC MITIGATION CONTROLS AND DIAGNOSTICS  
Variable frequency drive active harmonic mitigation controls and diagnostics are disclosed. Exemplary controls and diagnostics include operating a variable frequency drive including converting an...
US20150333667 ELECTRIC MOTOR DRIVING DEVICE  
A decrease of inductance in a carrier frequency region being used is suppressed by connecting reactors capable of maintaining a fluctuation range of inductance within a predetermined range in the...
US20150333666 MULTI-BATTERY PACK FOR POWER TOOLS  
A power tool including a motor, a first battery pack, a second battery pack, a first switching element coupled between the first battery pack and the motor, a second switching element coupled...
US20150333665 ELECTROMAGNETIC TYPE RETARDER WITH MULTI-FUNCTIONS  
An electromagnetic retarder includes a stator yoke, a plurality of magnetic coils, and a steel rotor; a control device; a driving device for a high revolution region having transistors; and a...
US20150333664 Hand-Held Power Tool  
A hand-held power tool includes a housing with a handle, a transmission, a drive motor, a tool receiver, and a first switch unit. The transmission and drive motor are arranged in the housing, the...
US20150333663 QUASI VARIABLE FREQUENCY MOTOR CONTROLLER  
An apparatus for a quasi variable frequency motor controller is includes a DFC module that applies a first frequency to a motor as part of a discrete frequency control (“DFC”) method for motor...
US20150333662 DEVICE FOR GENERATING A MOVEMENT, MOTOR COMPRISING SAID DEVICE AND USE OF THE LATTER  
The invention provides a device for generating a movement, preferably a circular movement. The device comprises at least one magnet, a material which is arranged in the proximity of the magnet or...
US20150333661 VIBRATION POWER GENERATOR  
A vibration power generator in which an electret group including a plurality of electrets and an electrode group including a plurality of electrodes are displaced in a relative movement direction...
US20150333660 CONVERTER FOR ELECTRIC POWER  
The present invention relates to a converter for electric power having multiple sub-modules connected in series, the sub-modules having an energy storage unit and multiple power semiconductor...