| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/07/2012 | US20120139634 Circuitry including matched transistor pairs |
| 06/07/2012 | US20120139633 Semiconductor integrated circuit and tuner system including the same |
| 06/07/2012 | US20120139632 Differential amplifier circuit |
| 06/07/2012 | US20120139631 Wide-swing telescopic operational amplifier |
| 06/07/2012 | US20120139630 Compound semiconductor device and method of manufacturing the same |
| 06/07/2012 | US20120139628 Method and arrangement in a mobile communications system |
| 06/07/2012 | US20120139440 Semiconductor device and electronic apparatus using the same |
| 06/06/2012 | EP2461483A1 Transfer gate circuit, and power combining circuit, power amplifying circuit, transmission device, and communication device using the transfer gate circuit |
| 06/06/2012 | EP2461479A1 Radio frequency circuit with impedance matching |
| 06/06/2012 | EP2460268A2 Bias current monitor and control mechanism for amplifiers |
| 06/06/2012 | EP2263309B1 Method for compensating amplification variations in an amplifier circuit |
| 06/06/2012 | DE112005002800B4 Hochfrequenzschaltung und Leistungsverstärker mit derselben High-frequency circuit and power amplifier with the same |
| 06/06/2012 | CN202268850U 一种多合体功放电路 A multi-fit power amplifier circuit |
| 06/06/2012 | CN202268849U 一种隔离放大器电路模块 An isolating amplifier circuit module |
| 06/06/2012 | CN202268848U 广播功放电路 Radio amplifier circuit |
| 06/06/2012 | CN202268847U 功率放大器的风机延时电路 PA fan delay circuit |
| 06/06/2012 | CN1830138B Variable attenuation system having continuous input steering |
| 06/06/2012 | CN1509554B Amplifier control circuit and method, and wireless communication device |
| 06/06/2012 | CN102487266A Operational amplifier and display driving circuit applying same |
| 06/06/2012 | CN102487079A Compound semiconductor device and method of manufacturing same |
| 06/06/2012 | CN101886933B Hall switch circuit with temperature compensation |
| 06/06/2012 | CN101841333B Low-jitter clock buffer for analogue-digital/digital-analogue converter |
| 06/06/2012 | CN101807891B Front-end amplifier circuit based on magnetoelectric transducer made of relaxor ferroelectric material |
| 06/06/2012 | CN101563841B Error correction system for a class-d power stage |
| 06/06/2012 | CN101563840B Power amplification device |
| 06/06/2012 | CN101515787B Audio power amplifier device |
| 06/06/2012 | CN101473533B Transmitter with pre-conditioning of amplifier signal |
| 06/06/2012 | CN101242679B A share audio power amplification circuit for multi-audio source and its control method |
| 06/05/2012 | US8193864 High efficiency power amplifier power architecture |
| 06/05/2012 | US8193863 Push-pull output circuit |
| 06/05/2012 | US8193862 Operational amplifier |
| 06/05/2012 | US8193861 Differential amplifier |
| 06/05/2012 | US8193860 Method and apparatus for automatically controlling an XNN® enhancement circuitry feeding a power amplifier |
| 06/05/2012 | US8193857 Wideband doherty amplifier circuit |
| 05/31/2012 | WO2012070777A2 Multichannel detector having a reduced number of output channels |
| 05/31/2012 | WO2012070540A1 Electronic component |
| 05/31/2012 | WO2012069231A1 Low-noise amplifier with impedance boosting circuit |
| 05/31/2012 | WO2012068971A1 Folded cascode operational amplifier |
| 05/31/2012 | US20120134514 Amplifier and amplifier control method |
| 05/31/2012 | US20120133688 Operational amplifying circuit and liquid crystal panel drive device using the same |
| 05/31/2012 | US20120133634 Apparatus, system, and method for generating a low power signal with an operational amplifier |
| 05/31/2012 | US20120133632 Operational amplifier and display driving circuit using the same |
| 05/31/2012 | US20120133442 Radiofrequency amplifier |
| 05/31/2012 | US20120133441 Electronic circuit |
| 05/31/2012 | US20120133440 Power amplifying device and coupled power amplifying device |
| 05/31/2012 | US20120133439 Reference Voltage Buffer and Method Thereof |
| 05/31/2012 | US20120133438 Differential amplifier and data driver |
| 05/31/2012 | US20120133437 Sense amplifier and electronic apparatus using the same |
| 05/31/2012 | US20120133436 Power amplifier and mmic using the same |
| 05/31/2012 | US20120133431 Power amplification circuit having transformer |
| 05/31/2012 | US20120133430 Offset cancellation for audio amplifier |
| 05/31/2012 | US20120132789 Detection circuit with correlated double sampling with improved anti-blooming circuit |
| 05/31/2012 | DE102011013107B3 Electronic device, has transistor's control gate connected between power supply and diode-connected transistor, where transistor has doping type opposite to doping type of p-type metal oxide semiconductor transistor |
| 05/30/2012 | EP2458732A1 Amplifier and amplifier control method |
| 05/30/2012 | EP2458731A2 Offset cancellation for continuous-time circuits |
| 05/30/2012 | EP2458730A1 Radiofrequency amplifier |
| 05/30/2012 | EP2457326A1 Microwave switching structure having a distributed amplifier with an input for feeding a test signal therein |
| 05/30/2012 | EP2457321A1 Split-biased current scalable buffer |
| 05/30/2012 | CN202261240U Charge transmission circuit for charge coupling production line ADC (analog-to-digital converter) |
| 05/30/2012 | CN202261181U Terminal using two-in-one loudspeaker |
| 05/30/2012 | CN202261180U Self-biasing operational amplification circuit |
| 05/30/2012 | CN202261179U P-band radio frequency push-pull high-power amplifier |
| 05/30/2012 | CN202261178U Digital player |
| 05/30/2012 | CN202261177U Transistor audio power amplifying circuit of low distortion transformer output |
| 05/30/2012 | CN202261176U Constant-pressure audio power amplifier |
| 05/30/2012 | CN202261175U Wideband power amplifier based on RF-LDMOS (radio frequency-laterally diffused metal oxide semiconductor) |
| 05/30/2012 | CN202261174U 功率放大器 PA |
| 05/30/2012 | CN202261171U Amplifying circuit for brushless motor driver |
| 05/30/2012 | CN202261170U S-waveband octave wideband power amplifier |
| 05/30/2012 | CN202261169U Circuit configuration of efficient linear power amplifier |
| 05/30/2012 | CN202259646U Waveguide traveling wave power synthesis amplifier |
| 05/30/2012 | CN202259645U Double-layered multi-way power-combining amplifier based on rectangular waveguide |
| 05/30/2012 | CN102484464A Digital tunable inter-stage matching circuit |
| 05/30/2012 | CN102484459A 多通道扬声器用多级放大器音频模块及多通道扬声器用组装式多级放大器音频模块壳体组件 Multi-channel audio speaker with multi-stage amplifier module and multi-channel speaker assembled multi-stage amplifier audio module housing assembly |
| 05/30/2012 | CN102484458A 传感器装置 The sensor device |
| 05/30/2012 | CN102484457A Circuit for an amplifier |
| 05/30/2012 | CN102484455A 用于使用共享共用偏压电流的多重放大级来放大信号的系统及方法 Share a common bias current for the use of the multiple amplifier stage to a signal amplification system and method |
| 05/30/2012 | CN102484452A 具有基于二极管的偏压的堆叠式放大器 Biasing the diode with a stack-based amplifier |
| 05/30/2012 | CN102480276A Foldable cascade operational amplifier |
| 05/30/2012 | CN102480275A 一种绝缘子全电流放大电路 One kind of insulator full current amplifier circuit |
| 05/30/2012 | CN102480274A 一种用于超声检测中的等幅放大电路 A method for ultrasonic testing of equal amplitude amplification circuit |
| 05/30/2012 | CN102480273A 一种实现功率放大器输出功率控制的装置及方法 An apparatus and method for controlling the output power of the power amplifier to achieve |
| 05/30/2012 | CN102480272A Radiofrequency amplifier |
| 05/30/2012 | CN102480270A 功率放大器和使用了该功率放大器的mmic Power amplifier and the power amplifier using mmic |
| 05/30/2012 | CN101951243B Full digital phase modulation and amplitude modulation clock generating circuit for switch power amplifier |
| 05/30/2012 | CN101820257B Switched capacitor circuit and analog-to-digital converter |
| 05/30/2012 | CN101753104B Pseudo-differential motion switching capacitance circuit |
| 05/30/2012 | CN101630044B 光接收器 Optical receiver |
| 05/30/2012 | CN101390286B Audio power conversion system |
| 05/30/2012 | CN101227172B Simulated D class amplifier |
| 05/30/2012 | CN101204009B A high dynamic range low-power differential input stage and its usage method, and application in bi-balance frequency mixer |
| 05/30/2012 | CN101179257B High-frequency power amplifier improved in size and cost |
| 05/29/2012 | US8189338 Power amplifier system |
| 05/29/2012 | US8188955 Source driving circuit with output buffer |
| 05/29/2012 | US8188804 System and method of shaping a power spectrum in PWM amplifiers |
| 05/29/2012 | US8188792 Techniques for current mirror circuits |
| 05/29/2012 | US8188791 Programmable gain amplifier and transconductance compensation system |
| 05/29/2012 | US8188789 Apparatus for improving performance at low power region in a Doherty amplifier |
| 05/29/2012 | US8188788 Systems and methods for a discrete resizing of power devices with concurrent power combining structure for radio frequency power amplifier |
| 05/24/2012 | WO2012068025A1 Current mode power amplifier providing harmonic distortion suppression |