| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 03/01/2011 | US7898328 Differential amplifier |
| 03/01/2011 | US7898313 Signal offset cancellation |
| 03/01/2011 | CA2503532C Estimating the operating point on a nonlinear traveling wave tube amplifier |
| 02/28/2011 | CA2713207A1 Electronic control module for a jfet transistor |
| 02/24/2011 | WO2011022553A1 Protection circuit for power amplifier |
| 02/24/2011 | WO2011022551A1 Stacked amplifier with diode-based biasing |
| 02/24/2011 | WO2011021841A2 Multi-amplifier audio module for a multichannel speaker, and multi-amplifier audio module housing assembly for same |
| 02/24/2011 | US20110044694 Systems and methods for optically powering transducers and related transducers |
| 02/24/2011 | US20110043295 Semiconductor device having an ESD protection circuit |
| 02/24/2011 | US20110043288 Rail-to-rail Miller compensation method without feed forward path |
| 02/24/2011 | US20110043287 Adaptive bias circuit and system thereof |
| 02/24/2011 | US20110043286 Direct conversion receiver |
| 02/24/2011 | US20110043285 Digital tunable inter-stage matching circuit |
| 02/24/2011 | US20110043284 Stacked amplifier with diode-based biasing |
| 02/24/2011 | US20110043283 Variable frequency class-d amplifier, control method thereof, and ramp generator therefor |
| 02/24/2011 | US20110043281 Dynamically adjustable low noise, low power instrumentation amplifier |
| 02/24/2011 | US20110043280 Low noise, low power instrumentation amplifier |
| 02/24/2011 | US20110043278 Method and apparatus for biasing an amplifier |
| 02/24/2011 | US20110043254 Sense Amplifier and Electronic Apparatus Using the Same |
| 02/24/2011 | US20110042553 Method and System for Optoelectronic Receivers Utilizing Waveguide Heterojunction Phototransistors Integrated in a CMOS SOI Wafer |
| 02/23/2011 | EP2288021A1 Amplifier and method for amplification of an RF signal |
| 02/23/2011 | EP2288020A2 Semiconductor device |
| 02/23/2011 | EP2287905A2 High frequency circuit having multi-chip module structure |
| 02/23/2011 | EP1573907B1 Delay mismatched feed forward amplifier system using penalties and floors for control |
| 02/23/2011 | CN101981810A Radio frequency (RF) envelope pulsing using phase switching of switch-mode power amplifiers |
| 02/23/2011 | CN101980443A Novel high-power class D audio power amplifier |
| 02/23/2011 | CN101980442A Novel class-D power amplifier |
| 02/23/2011 | CN101980441A Digital audio power amplifier and control method thereof |
| 02/22/2011 | US7894727 Operational amplifier circuit, bandpass filter circuit, and infrared signal processing circuit |
| 02/22/2011 | US7893909 TFT LCD device and driving method with a chopper amplifier that allows offset voltage polarity interlace within one frame |
| 02/22/2011 | US7893771 Wideband linearization and adaptive power management for microwave power amplifiers |
| 02/22/2011 | US7893770 Power amplification device |
| 02/22/2011 | US7893769 Power amplifier, method for controlling power amplifier, and wireless communication apparatus |
| 02/22/2011 | US7893767 Operational amplifier and integrating circuit |
| 02/22/2011 | US7893766 Adaptive common mode bias for differential amplifier input circuits |
| 02/22/2011 | US7893765 Current canceling variable gain amplifier and transmitter using same |
| 02/22/2011 | US7893762 Efficient composite amplifier |
| 02/22/2011 | US7893760 Amplifier circuit |
| 02/22/2011 | US7893759 Current conveyor based instrumentation amplifier |
| 02/22/2011 | US7893729 Voltage/current conversion circuit |
| 02/22/2011 | US7893728 Voltage-current converter and voltage controlled oscillator |
| 02/17/2011 | WO2011020112A1 Amplifier with variable matching circuit to improve linearity |
| 02/17/2011 | WO2011019850A1 Amplifiers with improved linearity and noise performance |
| 02/17/2011 | US20110037522 Active balun with stacked structure |
| 02/17/2011 | US20110037521 Power amplifier having depletion mode high electron mobility transistor |
| 02/17/2011 | US20110037520 Multistage amplifying circuit |
| 02/17/2011 | US20110037519 Amplifier with variable matching circuit to improve linearity |
| 02/17/2011 | US20110037518 Amplifiers with improved linearity and noise performance |
| 02/17/2011 | US20110037517 Concept, method and apparatus of improved distortion switched-mode amplifier |
| 02/17/2011 | US20110037516 Multi-stage impedance matching |
| 02/16/2011 | EP2285059A2 Digital transmitters for wireless communication |
| 02/16/2011 | EP2284995A1 A linear transconductance cell with wide tuning range |
| 02/16/2011 | EP2284994A1 A linear transconductance cell with wide tuning range |
| 02/16/2011 | EP2284993A2 Dynamic switchable mode dual bridge power amplifier |
| 02/16/2011 | EP2284992A1 Current sensing |
| 02/16/2011 | EP2284991A1 System and method for controlling radio frequency transmissions in an electronic device |
| 02/16/2011 | EP2284990A2 High linearity variable gain amplifier |
| 02/16/2011 | EP2284989A2 High efficiency microwave amplifier |
| 02/16/2011 | EP2283573A1 Multi-stage amplifier |
| 02/16/2011 | CN201750403U Simple-pole multistage gain enhancement amplifier |
| 02/16/2011 | CN201750402U Integrated power amplifier |
| 02/16/2011 | CN201750401U Time amplification circuit of pulse signals |
| 02/16/2011 | CN1987711B Power supply circuit |
| 02/16/2011 | CN1534865B Low noise light receiver |
| 02/16/2011 | CN101978600A Capacitance multiplier circuit |
| 02/16/2011 | CN101978598A Quadrature output low noise transconductance amplifier having differential input |
| 02/16/2011 | CN101978597A Low distortion amplifier and doherty amplifier using low distortion amplifier |
| 02/16/2011 | CN101977025A Method and device for eliminating noise in class-D power amplifier |
| 02/16/2011 | CN101977024A Multi-closed loop synergetic amplification circuit |
| 02/16/2011 | CN101977022A Complementary-multiplicative power compensation method, device and communication equipment |
| 02/16/2011 | CN101339443B Broad output current scope low pressure difference linear manostat |
| 02/16/2011 | CN101059938B Optical sensor for sensing peripheral light and liquid crystal display device using the same |
| 02/15/2011 | US7889787 Ultrasound transmit beamformer integrated circuit and method |
| 02/15/2011 | US7889009 Distributed active transformer based millimeter-wave power amplifier circuit |
| 02/15/2011 | US7889007 Differential amplifier with active post-distortion linearization |
| 02/15/2011 | US7889006 dB-linear process-independent variable gain amplifier |
| 02/15/2011 | US7889005 Controllable amplifier and the use thereof |
| 02/15/2011 | US7889004 Operational amplifiers with enhanced parameters |
| 02/15/2011 | US7889003 Class-D amplifier |
| 02/15/2011 | US7889002 Power amplifier |
| 02/15/2011 | US7888999 Premium power amplifier |
| 02/15/2011 | US7888998 Low-voltage CMOS error amplifier with implicit reference |
| 02/15/2011 | US7888997 Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters |
| 02/15/2011 | US7888910 Sequencing switched single capacitor for automatic equalization of batteries connected in series |
| 02/10/2011 | WO2011017463A1 Amplifier module with multiple operating modes |
| 02/10/2011 | WO2011017368A1 Multi-stage impedance matching |
| 02/10/2011 | WO2011017008A1 System and method for tdd/tma with hybrid bypass switch of receiving amplifier |
| 02/10/2011 | WO2011016266A1 Pulse-modulated high-frequency power control method and pulse-modulated high-frequency power source device |
| 02/10/2011 | WO2011015533A1 Digital modulated rf power amplifier with impedance compensation circuit |
| 02/10/2011 | WO2011014961A1 Distributed amplifier for band pass radio front-end |
| 02/10/2011 | US20110032240 Buffering circuit with reduced dynamic power consumption |
| 02/10/2011 | US20110032233 Lcd driving circuit using operational amplifier and lcd display apparatus using the same |
| 02/10/2011 | US20110032039 Efficient power amplifier |
| 02/10/2011 | US20110032038 Rf power amplifier apparatus and power supply circuit for controlling power-supply voltage to rf power amplifier |
| 02/10/2011 | US20110032037 Power amplifier bias circuit having controllable current profile |
| 02/10/2011 | US20110032035 Amplifier module with multiple operating modes |
| 02/10/2011 | US20110032034 Switched mode amplifier |
| 02/10/2011 | DE102010032447A1 Multistage audio amplifier for amplifying audio signals in e.g. super audio compact disk player, has source selector switch with signal switching function for transferring input signals that are transferred to impedance converter stage |
| 02/10/2011 | CA2801950A1 Distributed amplifier for band pass radio front-end |
| 02/09/2011 | EP1718932B1 Series bridge circuit |