| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/25/2012 | CN102332879A Class ab output stages and amplifiers including class ab output stages |
| 01/25/2012 | CN102332877A Differential complementary metal oxide semiconductor (CMOS) multimode low-noise amplifier with on-chip active Balun |
| 01/25/2012 | CN102332876A High efficiency switch mode amplifier with reduced electromagnetic interference |
| 01/25/2012 | CN102332875A Doherty power amplifier with high efficient broadband |
| 01/25/2012 | CN102332874A Temperature compensation device for power amplifier and method for controlling power stability |
| 01/25/2012 | CN102332873A Power control circuit for mobile terminal power amplifier |
| 01/25/2012 | CN102332871A Gyrator circuit, wide-band amplifier and radio communication apparatus |
| 01/25/2012 | CN102332870A Power amplifier |
| 01/25/2012 | CN102332869A High-integration BTL (bridge-tied load) audio power amplifier |
| 01/25/2012 | CN102332867A Low-noise amplifier with single-end circuit compensation structure |
| 01/25/2012 | CN102331806A Differential amplifier circuit and series regulator |
| 01/25/2012 | CN102013876B Combined power control system of radio-frequency power amplifier and method of combined power control system |
| 01/25/2012 | CN101783654B High-gain broadband radio-frequency low noise amplifier |
| 01/25/2012 | CN101656510B Gate voltage control method and system for power amplifier |
| 01/25/2012 | CN101588158B Pulse width modulation amplifier |
| 01/25/2012 | CN101512897B Amplifier employing interleaved signals for PWM ripple suppression |
| 01/25/2012 | CN101231318B Voltage sampling circuit of anti-syntype diverter |
| 01/25/2012 | CN101171745B Receiver having a gain-controllable input amplifier |
| 01/25/2012 | CN101053151B Semiconductor device and power amplifier |
| 01/24/2012 | US8102211 Rail-to-rail input stage circuit with dynamic bias control |
| 01/24/2012 | US8102210 Low phase noise amplifier circuit |
| 01/24/2012 | US8102209 CMOS variable gain amplifier |
| 01/24/2012 | US8102208 Signal amplifier |
| 01/24/2012 | US8102207 Apparatus and method for broadband amplifier linearization |
| 01/24/2012 | US8102206 Multi-path, multi-stage feed-forward operational amplifier circuit |
| 01/24/2012 | US8102156 Differential amplifier circuit and electric charge control apparatus using differential amplifier circuit |
| 01/24/2012 | CA2595944C Two stage microwave class e power amplifier |
| 01/19/2012 | WO2012009167A2 Method and apparatus for broadband input matching with noise and non-linearity cancellation in power amplifiers |
| 01/19/2012 | US20120013405 Rf detector with crest factor measurement |
| 01/19/2012 | US20120013404 Method and Apparatus for Broadband Input Matching with Noise and Non-Linearity Cancellation in Power Amplifiers |
| 01/19/2012 | US20120013403 Amplifier circuit |
| 01/19/2012 | US20120013400 Current Control Circuit, Class AB Operational Amplifier System and Current Control Method |
| 01/19/2012 | US20120013394 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 01/19/2012 | DE102005032093B9 Verstärkeranordnung Amplifier arrangement |
| 01/18/2012 | EP2408127A1 Radio-frequency amplifier system |
| 01/18/2012 | EP2311185B1 A pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications |
| 01/18/2012 | EP1540565B1 Switched capacitor system, method, and use |
| 01/18/2012 | EP1356599B1 Amplifier phase change compensation |
| 01/18/2012 | CN202121554U Bilateral amplifier with bandwidth higher than 1GHz |
| 01/18/2012 | CN202121553U Integration signal amplification module |
| 01/18/2012 | CN202121552U Novel high-power high-efficient small class-D amplifier |
| 01/18/2012 | CN202121551U Conduction-switching type high-fidelity power amplifier |
| 01/18/2012 | CN202121550U Guide changing type power amplifier |
| 01/18/2012 | CN102324901A Long term evolution linear power amplifier |
| 01/18/2012 | CN102324900A Power amplifier linearization using cancellation-based feed forward methods and systems |
| 01/18/2012 | CN102324899A Transresistance amplifier with received signal strength indication (RSSI) function |
| 01/18/2012 | CN102324898A Broadband automatic biasing Darlington linear amplifier circuit with linear compensation |
| 01/18/2012 | CN102324897A Improved broadband self-bias Darlington linear amplifier circuit |
| 01/18/2012 | CN101505140B Trans-impedance amplifier with low noise and high gain-bandwidth product |
| 01/18/2012 | CN101110589B Transmission apparatus for differential signals |
| 01/17/2012 | US8098181 Attenuator circuit |
| 01/17/2012 | US8098102 RF power amplifier and RF power module using the same |
| 01/17/2012 | US8098101 Method of achieving high selectivity in receiver RF front-ends |
| 01/17/2012 | US8098100 Variable gain amplifiers |
| 01/17/2012 | US8098099 Broadband high output current output stage |
| 01/17/2012 | US8098098 Amplifier circuit, integrated circuit device, and electronic instrument |
| 01/17/2012 | US8098097 Radio frequency buffer |
| 01/17/2012 | US8098096 Device and method for generating an output signal |
| 01/17/2012 | US8098093 Efficient envelope tracking power supply for radio frequency or other power amplifiers |
| 01/17/2012 | US8098092 Power amplifier |
| 01/17/2012 | US8098091 Method in the compensation of unlinearities in an amplifier, and uses of the method and the amplifier |
| 01/17/2012 | US8096961 Switched resonant ultrasonic power amplifier system |
| 01/12/2012 | WO2012005886A1 Bias current generator |
| 01/12/2012 | WO2012005752A2 Narrow-band tunable radio frequency (rf) power amplifiers and related methods |
| 01/12/2012 | WO2012004840A1 Amplifier with pass-through |
| 01/12/2012 | WO2012004781A1 Apparatus and method for amplifying a signal from a transmitter |
| 01/12/2012 | WO2012004702A2 Broadband transistor bias network |
| 01/12/2012 | WO2012004039A1 Linear differential amplifier having high input impedance |
| 01/12/2012 | WO2011145002A3 Multi-band high-efficiency doherty amplifier |
| 01/12/2012 | WO2011140145A3 Noise-canceling for differential amplifiers requiring no external matching |
| 01/12/2012 | US20120007679 Integrated RF Front End with Stacked Transistor Switch |
| 01/12/2012 | US20120007678 Broadband Transistor Bias Network |
| 01/12/2012 | US20120007677 Class AB Operational Amplifier and Output Stage Quiescent Current Control Method |
| 01/12/2012 | US20120007676 Drive amplifier |
| 01/12/2012 | US20120007675 Power amplifier |
| 01/12/2012 | US20120007674 Power amplifier reducing gain mismatch |
| 01/12/2012 | US20120007671 Apparatus for automatically separating and detecting noise radio waves |
| 01/12/2012 | DE102010026629A1 Linearer differentieller Verstärker mit hoher Eingangsimpedanz Linear differential amplifier with high input impedance |
| 01/11/2012 | EP2405572A1 High efficiency switch mode amplifier with reduced electromagnetic interference |
| 01/11/2012 | EP2405277A2 Systems and methods of RF power transmission, modulation, and amplification |
| 01/11/2012 | EP2404383A2 Apparatus and method for improving linearity of transmitter |
| 01/11/2012 | EP2404377A2 Amplifier system for cell sites and other suitable applications |
| 01/11/2012 | EP1845624B1 Transmission device and wireless communication apparatus |
| 01/11/2012 | EP1741180B1 High speed differential receiver with rail to rail common mode operation having a symmetrical differential output signal with low skew |
| 01/11/2012 | EP1728084B1 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 01/11/2012 | CN202111665U Micro wire control power amplifier |
| 01/11/2012 | CN1853343B Amplifier |
| 01/11/2012 | CN102315825A High-linearity push-pull amplifier using space combination technology |
| 01/11/2012 | CN102315824A Power amplifier reducing gain mismatch |
| 01/11/2012 | CN101739963B Drive circuit system and method for enhancing slew rate of operational amplifier |
| 01/11/2012 | CN101656518B Feed-forward power amplification circuit and method for realizing power amplification by using same |
| 01/11/2012 | CN101599741B Frequency compensated operational amplifier |
| 01/11/2012 | CN101425785B Transconductance-capacitor compensation circuit for rolling over network |
| 01/11/2012 | CN101227171B Linearisation device with pre-distortion with adjustable amplitude and curve |
| 01/11/2012 | CN101079650B Buck and boost switch voltage regulator and its control method |
| 01/10/2012 | US8095094 Communication semiconductor integrated circuit, communication electronic component and wireless communication system |
| 01/10/2012 | US8094752 Ultra-wideband signal amplifier |
| 01/10/2012 | US8094033 Apparatus to monitor process-based parameters of an integrated circuit (IC) substrate |
| 01/10/2012 | US8093953 Amplifier system with digital adaptive power boost |
| 01/10/2012 | US8093952 Method and system for precise current matching in deep sub-micron technology |