Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/2012
10/23/2012US8294523 Low distortion cascode amplifier circuit
10/23/2012US8294522 Efficient amplification stage
10/23/2012US8294521 Power amplifier having depletion mode high electron mobility transistor
10/23/2012US8294518 Class-AB/B amplifier and quiescent control circuit for implementation with same
10/23/2012US8294517 Amplification circuit
10/23/2012US8294514 Calibrate output matching for correct output power
10/18/2012WO2012141008A1 Semiconductor integrated circuit
10/18/2012WO2012140983A1 Digital speaker system
10/18/2012WO2012140299A1 First front stage current-mode circuit for reading sensors and integrated circuit
10/18/2012WO2012083256A3 Apparatus and methods for oscillation suppression
10/18/2012US20120262993 Sensing scheme in a memory device
10/18/2012US20120262320 Resonator, delta-sigma modulator, and wireless communication device
10/18/2012US20120262237 Power amplifier device
10/18/2012US20120262236 Differential amplifying circuit
10/18/2012US20120262235 Differential output stage
10/18/2012US20120262231 Contact and contactless differential i/o pads for chip-to-chip communication and wireless probing
10/18/2012US20120262230 Amplifier crosstalk cancellation technique
10/18/2012DE102012205856A1 HF-Modulator, Kalibrierungsschaltungsanordnung und Verfahren zum Kalibrieren eines HF-Modulators RF modulator circuitry and calibration method for calibrating an RF modulator
10/18/2012DE102011056072B3 Circuit arrangement for controlling supply voltage for audio-amplifier used as terminal amplifier for e.g. DVD player in vehicle, has control unit conductively or non-conductively switching MOSFET based on supply voltage or input signal
10/17/2012EP2512030A1 Differential output stage
10/17/2012EP2512029A1 Audio signal driver for flat sound generator
10/17/2012EP2510616A2 Apparatus and method for implementing a differential drive amplifier and a coil arrangement
10/17/2012EP2510615A1 Low output impedance rf amplifier
10/17/2012CN202495914U Power amplifying circuit
10/17/2012CN202495876U Negative voltage generating circuit and audio frequency amplifying circuit
10/17/2012CN102742158A High resolution output driver
10/17/2012CN102742155A Variable class characteristic amplifier
10/17/2012CN102742154A Method for offsetting vmos transistor power amplifier of distortion and temperature drift of diode
10/17/2012CN102739208A Class d pulse width modulator with dual feedback
10/17/2012CN102739176A Amplifier crosstalk cancellation method and amplifier circuit
10/17/2012CN102739175A Source or emitter follower buffer circuit and method
10/17/2012CN102739174A Trans-conductance amplifier, resistor, inductor and filter
10/17/2012CN102739173A Transconductance amplifier, resistor, inductor and filter
10/17/2012CN102739172A Differential output stage
10/17/2012CN102739171A Calculation amplifier
10/17/2012CN102739170A High-frequency structure for THz power amplifier
10/17/2012CN102739169A Power combiner, power amplifying module having the same, and signal transceiving module
10/17/2012CN102739168A High-power audio driver architecture with high-efficiency low-voltage power supply output
10/17/2012CN101860334B Operational transconductance amplifier (OTA) of circulating current for separating AC path from DC patch path
10/17/2012CN101662264B Switch-type operational amplifier with low power consumption and large oscillation range
10/17/2012CN101630944B Driving circuit capable of promoting response speed and related method thereof
10/17/2012CN101588195B Power amplification device and signal receiving and transmitting system
10/16/2012US8290454 Power amplification device, and transmission device and communication device both using thereof
10/16/2012US8289085 Amplifier circuit
10/16/2012US8289084 RF power amplifier device and operating method thereof
10/16/2012US8289083 Active power splitter
10/16/2012US8289082 Circuit and method for adjusting an offset output current for an input current amplifier
10/16/2012US8289081 Differential amplifier, method for inverting output polarity of the same, and source driver
10/16/2012US8289080 Current-mode amplifier
10/16/2012US8289079 LCD driving circuit using operational amplifier and LCD display apparatus using the same
10/16/2012US8289078 Semiconductor integrated circuit and electronic device
10/16/2012US8289077 Signal processor comprising an amplifier
10/16/2012US8289075 Class-D amplifier
10/16/2012US8288703 Photodetection device
10/16/2012CA2419936C Circuit for producing low-voltage differential signals
10/11/2012WO2012139126A1 Systems and methods of rf power transmission, modulation, and amplification
10/11/2012WO2012139071A2 Non foster circuit
10/11/2012WO2012138795A1 Circuits for providing class-e power amplifiers
10/11/2012WO2012138720A1 Power supply with tickle pulse injection
10/11/2012WO2012137290A1 Bandwidth-variable amplifier
10/11/2012US20120257339 Multi-Channel Amplifier Techniques
10/11/2012US20120256691 Oscillator and input-output device and method of controlling the same
10/11/2012US20120256690 Power amplifier circuit with means for tuning wave shape of ask rf signal envelope, and method for implementing the power amplifier circuit
10/11/2012US20120256684 Power Amplification Based on Frequency Control Signal
10/11/2012US20120256609 Error amplifier with built-in over voltage protection for switched-mode power supply controller
10/11/2012DE102011006872A1 Sendeeinrichtung zur Ansteuerung einer Hochfrequenzantenne einer Magnetresonanzeinrichtung, Leistungsverstärkereinheit und Verfahren zur Erzeugung eines amplitudenmodulierten Zielsignals Transmission means for driving a high-frequency antenna of a magnetic resonance device, power amplifier unit and method for generating an amplitude-modulated target signal
10/10/2012EP2509218A1 System and method for generating a pulse-width modulated signal
10/10/2012EP2509217A1 Method for amplifying an RF signal and tuneable RF power amplifier device
10/10/2012EP2509216A1 Buffer circuit with high linearity
10/10/2012EP2509215A2 Power amplifier circuit with means for tuning wave shape of ASK RF signal envelope, and method for implementing the power amplifier circuit
10/10/2012EP2507908A1 Pop-up noise reduction in a device
10/10/2012CN202488666U Network draw-type digital power amplification system
10/10/2012CN202488428U Transformerless balanced signal and unbalanced signal conversion circuit based on operational amplifier
10/10/2012CN202488407U Three-phase rectified synthesized five-output operational amplifier circuit
10/10/2012CN202488406U Highly stable programmable gain amplifier structure
10/10/2012CN202488405U Audio-frequency amplification circuit
10/10/2012CN102723920A Transconductance stabilizing circuit of operational amplifiers
10/10/2012CN102723919A Transconductance amplifier, resistor, inductor and filter
10/10/2012CN102723918A Transconductance amplifier, resistor, inductor and filter
10/10/2012CN102723917A Power amplifier
10/10/2012CN102723913A Fourth-generation multi-standard fully-compatible mobile radio-frequency front-end broadband low-noise amplifying device
10/10/2012CN102723320A Electronic component and radio frequency power amplifier
10/10/2012CN101719994B Solid-state image sensor and camera system
10/10/2012CN101662262B Class D amplifier control circuit and method
10/10/2012CN101465102B Drive device and method for driving liquid crystal display
10/10/2012CN101094023B Magnifier device for mode antenna
10/09/2012US8285230 Amplifying circuit, semiconductor integrated circuit, wireless transmission system, and communication apparatus
10/09/2012US8284963 Method and apparatus for diminishing mismatch effects between switched signals
10/09/2012US8284953 Circuit and method of reducing pop-up noise in a digital amplifier
10/09/2012US8283992 Communication transceiver having a three-line balun with power amplifier bias
10/09/2012US8283982 Decision feedback equalizer circuit
10/09/2012US8283981 Operational amplifier having a common mode feedback circuit portion
10/09/2012US8283980 Amplifier circuit
10/09/2012US8283979 Amplifier system for a power converter
10/09/2012US8283976 Switching device of digital amplifier and method for driving the same
10/09/2012US8283950 Delay lines, amplifier systems, transconductance compensating systems and methods of compensating
10/09/2012US8283620 Optical sensor and sensing method with stray illumination compensation
10/04/2012WO2012134871A1 Low switching error, small capacitors, auto-zero offset buffer amplifier
10/04/2012WO2012134008A1 Power amplifier using differential structure
10/04/2012WO2012132377A1 Amplifier and audio device provided with amplifier
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