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)
03/2011
03/31/2011	US20110074510 Symmetrically operating single-ended input buffer devices and methods
03/31/2011	US20110074509 Non-linear capacitance compensation
03/31/2011	US20110074508 Voltage regulator
03/31/2011	US20110074507 Differential amplifier
03/31/2011	US20110074504 Multi mode power output module and method of use with an rf signal amplification system
03/31/2011	US20110074503 Operational amplifier
03/30/2011	EP2302796A1 Drive device
03/30/2011	EP2302790A1 Output stage of a class-A amplifier
03/30/2011	EP2302789A1 Power amplifier, power amplifier nonlinear distortion correction method, and wireless communication device
03/30/2011	EP2302788A1 Load management for improved envelope tracking performance
03/30/2011	EP2302731A1 Filter and amplifying circuit
03/30/2011	EP2301151A1 Cmos amplifier with integrated tunable band-pass function
03/30/2011	EP2301149A1 Method and apparatus for power converter for class d audio power amplifiers
03/30/2011	EP2301148A1 Audio amplifier and method for reconfiguring an audio amplifier
03/30/2011	EP2301147A2 D-class digital amplifier including a noise reducer
03/30/2011	EP2301146A1 Double-linc switched-mode transmitter
03/30/2011	EP1749342B1 Quadrature offset power amplifier
03/30/2011	EP1421678B1 Switching power supply for rf power amplifiers
03/30/2011	CN201781465U CMOS (complementary metal oxide semiconductor) comparator with rail-to-rail input and reference voltage ranges
03/30/2011	CN201781461U High-gain class AB operational amplifier for quiescent current accuracy control
03/30/2011	CN201781460U High-gain high-speed rail-to-rail input and output operational amplifier and biasing circuit
03/30/2011	CN201781459U Distortion-prevention class-D audio power amplifier
03/30/2011	CN201780522U Voltage source-adjustable circuit of charge coupled device (CCD) camera for astronomy
03/30/2011	CN101999207A Compensating for non-linear capacitance effects in a power amplifier
03/30/2011	CN101998203A High-performance audio amplifier circuit
03/30/2011	CN101997515A Full-differential same-phase parallel amplifying device for acquiring bioelectric signal
03/30/2011	CN101997514A Active high-pass wave filter amplification circuit
03/30/2011	CN101997497A AD8351-based large-bandwidth multi-path differential analogue amplification circuit
03/30/2011	CN101997496A Reconfigurable power amplifier integrated circuit
03/30/2011	CN101997495A Adaptive bias circuit and system thereof
03/30/2011	CN101997494A Low-frequency amplifier and passive infrared detector
03/30/2011	CN101997490A Constant gain time amplifier adopting digital calibration technology
03/30/2011	CN101996596A LCD driving circuit using operational amplifier and LCD display apparatus using the same
03/30/2011	CN101478293B Temperature compensation power amplifier circuit
03/30/2011	CN101355346B Method for compensating frequency of wideband common mode feedback loop of two-stage operational amplifier
03/30/2011	CN101185239B Signal converting circuit
03/29/2011	US7917117 Auto-tuning amplifier
03/29/2011	US7917043 Optical receiver applicable to multiple transmission speed
03/29/2011	US7915969 Distortion compensating circuit
03/29/2011	US7915961 Power amplifier multiple stage control for polar modulation circuit
03/29/2011	US7915960 Multi-primary distributed active transformer amplifier power supply and control
03/29/2011	US7915959 Multi-path, multi-oxide-thickness amplifier circuit
03/29/2011	US7915957 Distributed amplification apparatus and amplifier
03/29/2011	US7915954 Amplifier predistortion and autocalibration method and apparatus
03/29/2011	US7915928 High linearity voltage to current conversion
03/24/2011	WO2011034473A1 Method and arrangement in a mobile communications system
03/24/2011	WO2011034471A1 Method and arrangement in a mobile communication system
03/24/2011	WO2011033962A1 Microwave harmonic processing circuit
03/24/2011	US20110070859 Low noise amplifier and radio frequency signal receiver
03/24/2011	US20110068873 RF Power Amplifiers with Linearization
03/24/2011	US20110068872 Amplifying apparatus
03/24/2011	US20110068871 Amplifier for amplifying a high-frequency signal
03/24/2011	US20110068870 Class-d amplifier with dual feedback loop
03/24/2011	US20110068869 Single-ended class-d amplifier with dual feedback loop scheme
03/24/2011	US20110068865 V-Band High-Power Transmitter With Integrated Power Combiner
03/24/2011	US20110068862 Feedback amplifier and feedback amplification method
03/24/2011	US20110068861 Chopper-stabilized instrumentation amplifier
03/23/2011	EP2297847A2 Rf power amplifiers with linearization
03/23/2011	EP2064812B1 Signal conditioning circuit, a comparator including such a conditioning circuit and a successive approximation converter including such a circuit
03/23/2011	EP1673859B1 Method and apparatus for resetting a buffer amplifier
03/23/2011	EP1652295B1 Temperature-insensitive bias circuit for high-power amplifiers
03/23/2011	EP1421694B1 Differential charge pump
03/23/2011	CN201774663U Bluetooth-controlled micro loudspeaker array module
03/23/2011	CN201774502U Novel silicon transistor audio frequency push-pull amplifier circuit
03/23/2011	CN101989842A Operational amplifier and semiconductor device using the same
03/23/2011	CN101989841A Differential amplifier circuit, data line driver using the same, and liquid crystal display apparatus
03/23/2011	CN101989840A Operational amplifier capable of eliminating direct current voltage deviation
03/23/2011	CN101989839A Simple power amplifier circuit
03/23/2011	CN101989837A GaAs HBT high-gain broadband linear transconductance unit circuit
03/23/2011	CN101989836A Efficient audio amplifier and related method thereof
03/23/2011	CN101510759B Design method for variable load closed-loop E genus amplifier
03/23/2011	CN101470511B Voltage supply circuit for central processing unit
03/23/2011	CN101442293B 2.4GHz low noise amplifier circuit capable of resisting process change
03/23/2011	CN101369804B Apparatus and method for eliminating feedback common-mode signal
03/22/2011	US7912145 Filter for a modulator and methods thereof
03/22/2011	US7911280 Amplifier stage
03/22/2011	US7911279 Amplifier with bias circuit providing improved linearity
03/22/2011	US7911278 Biased low differential input impedance current receiver/converter device and method for low noise readout from voltage-controlled detectors
03/22/2011	US7911277 Adaptively tuned RF power amplifier
03/22/2011	US7911276 Transconductor circuit
03/22/2011	US7911275 Constant gain control for multistage amplifiers
03/22/2011	US7911274 Variable transconductance circuit
03/22/2011	US7911273 Reduction of power consumption and EMI of a switching amplifier
03/22/2011	US7911272 Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
03/22/2011	US7911270 Broadband microwave device with switchable gain
03/22/2011	US7911268 Apparatus and method for improving the feedback linearity of a 1.5-bit sigma-delta class-D amplifier
03/22/2011	US7911267 Sigma-delta class-D amplifier and control method for a sigma-delta class-D amplifier
03/22/2011	US7910874 Method of amplifying charge in an imager
03/17/2011	WO2011032178A2 High resolution output driver
03/17/2011	WO2011031379A2 Boosted-rail amplifier
03/17/2011	WO2011031213A2 Power amplifier
03/17/2011	WO2011031003A2 Switched capacitor circuit
03/17/2011	WO2011030794A1 Amplification device and wireless transmission device using the same
03/17/2011	US20110065472 Apparatus and method for an integrated multi-mode multi-band power amplifier
03/17/2011	US20110063036 Operational amplifier
03/17/2011	US20110063033 Output stage of a class-a amplifier
03/17/2011	US20110063032 Balun amplifier
03/17/2011	US20110063031 Driving apparatus and driving method thereof
03/17/2011	US20110063030 Cmos variable gain amplifier
03/17/2011	US20110063029 Semiconductor integrated circuit

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