| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/10/2013 | US20130009708 Wideband doherty amplifier circuit with impedance combiner |
| 01/10/2013 | US20130009707 N-way doherty distributed power amplifier with power tracking |
| 01/10/2013 | US20130009705 Sense amplifier having loop gain control |
| 01/10/2013 | US20130009704 Transceiver and integrated circuit |
| 01/10/2013 | US20130009703 Bulk-driven current-sense amplifier and operating method thereof |
| 01/09/2013 | EP2544367A2 Semiconductor integrated circuit |
| 01/09/2013 | EP2544366A1 Transmitter module and phased array antenna device |
| 01/09/2013 | EP2543142A1 Very high fidelity audio amplifier |
| 01/09/2013 | EP2543141A1 Operational amplifier having improved slew rate |
| 01/09/2013 | EP2543140A1 Class a push-pull amplifier |
| 01/09/2013 | EP2543139A1 Reducing pulse error distortion |
| 01/09/2013 | EP2543138A1 Planar audio amplifier output inductor with current sense |
| 01/09/2013 | EP2543137A1 Versatile audio power amplifier |
| 01/09/2013 | CN202663418U Ethernet power supply network digital amplification system |
| 01/09/2013 | CN202663371U Pulse width modulation circuit of large-power pulse width modulation amplifier |
| 01/09/2013 | CN202663362U Preamplifier for rapid spot size measurement |
| 01/09/2013 | CN202663361U Anti-static high-precision low-drafting dual operational amplifier |
| 01/09/2013 | CN102870494A High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
| 01/09/2013 | CN102868377A Total 3G (Third Generation Telecommunication) CMOS (Complementary Metal-Oxide-Semiconductor Transistor) differential low-noise amplifier based on controllable active inductor |
| 01/09/2013 | CN102868376A Operational amplifier with low power consumption |
| 01/09/2013 | CN102868375A Operational amplifier |
| 01/09/2013 | CN102868374A Multi-input operational amplifier and compensation method for output voltage of same |
| 01/09/2013 | CN102868373A Rail-to-Rail constant gain amplifier |
| 01/09/2013 | CN102035485B High-gain linear amplifier capable of realizing stable output |
| 01/09/2013 | CN101917654B Sounding device for producing resonance by combining container cavity |
| 01/09/2013 | CN101765968B Semiconductor device |
| 01/08/2013 | US8350627 Hybrid class amplifier |
| 01/08/2013 | US8350626 Amplifier circuit |
| 01/08/2013 | US8350625 Adaptive power amplifier |
| 01/08/2013 | US8350624 Amplifiers and related biasing methods and devices |
| 01/08/2013 | US8350623 Variable gain amplifier |
| 01/08/2013 | US8350622 Output common mode voltage stabilizer over large common mode input range in a high speed differential amplifier |
| 01/08/2013 | US8350206 Transimpedance amplifier circuit for converting an input current to an output voltage such circuits used for the evalutation of output signals of photo detectors, which are generating a current that is proportional to the intensity of received light |
| 01/03/2013 | WO2013001882A1 Switching circuit |
| 01/03/2013 | WO2013001711A1 High-frequency power amplifier |
| 01/03/2013 | WO2012125279A3 Enhanced doherty amplifier |
| 01/03/2013 | US20130002359 Amplifier with high power supply noise rejection |
| 01/03/2013 | US20130002358 Electronic circuitry for high-temperature environments |
| 01/03/2013 | US20130002356 Operational amplifier |
| 01/03/2013 | US20130002355 Differential amplifier and comparator |
| 01/03/2013 | US20130002354 Signaling systems, preamplifiers, memory devices and methods |
| 01/03/2013 | US20130002353 Multi-input operational amplifier and output voltage compensation method thereof |
| 01/03/2013 | US20130002352 Sensing circuit |
| 01/03/2013 | US20130002351 Voltage generating circuit and method |
| 01/03/2013 | US20130002350 Differential Comparator |
| 01/03/2013 | US20130002346 Parallel Correction Amplifier |
| 01/03/2013 | US20130002313 Switching power supply device and a semiconductor integrated circuit |
| 01/03/2013 | DE112010005352T5 Schaltungseinheit, Vorspannungsschaltung mit Schaltungseinheit und Differenzverstärkerschaltung mit erster und zweiter Schaltungseinheit Circuit unit, bias circuit with the circuit unit and the differential amplifier circuit having first and second circuit unit |
| 01/02/2013 | EP2541766A1 Power amplification tube and power amplification method |
| 01/02/2013 | EP2541765A1 Low-noise microphone pre-amplifier with active load element |
| 01/02/2013 | EP2541763A1 Bias circuit, lna, lnb, receiver for communication, transmitter for communication, and sensor system |
| 01/02/2013 | EP2541760A1 Amplifying device, signal processing device, wireless communication device, connector mounting structure, and coaxial connector |
| 01/02/2013 | EP2541697A1 Connecting element for data lines |
| 01/02/2013 | EP2539916A2 High-frequency supply of a load without impedance matching |
| 01/02/2013 | CN202652162U Filter |
| 01/02/2013 | CN202652152U Output power adjustable circuit of radio frequency power amplifier |
| 01/02/2013 | CN202652151U Novel full-balanced vacuum tube high fidelity power amplifier |
| 01/02/2013 | CN202652150U Radio-frequency (RF) low-noise amplifier with single-ended input and differential output function |
| 01/02/2013 | CN102860042A Microphone assembly |
| 01/02/2013 | CN102859868A Digital amplifier |
| 01/02/2013 | CN102859867A Power amplifier with low noise figure and voltage variable gain |
| 01/02/2013 | CN102857229A Loop filter and quantizer and digital-to-analog converter and operational amplifier |
| 01/02/2013 | CN102857185A Anti-distortion automatic gain adjustment circuit for class D power amplifier |
| 01/02/2013 | CN102857181A Operational amplifier zero-pole analysis method based on signal-flow diagram |
| 01/02/2013 | CN102857180A Power amplifier of train public address equipment |
| 01/02/2013 | CN102857179A Power amplifier |
| 01/02/2013 | CN102855417A Memory nonlinear model of wide-band radio frequency power amplifier and modeling method |
| 01/02/2013 | CN102098009B Output match circuit of radio frequency (RF) power amplifier and design method thereof |
| 01/02/2013 | CN102034823B Layout and bonding pad floor planning for power transistor with favorable SPU (Short-to-Plus Unpowered) and STOG (Short-to-Open circuit Grounded) performance |
| 01/02/2013 | CN102025327B Amplifier apparatus and predistortion control method |
| 01/02/2013 | CN101926088B Power amplification device and communication device |
| 01/02/2013 | CN101841309B Rail-to-rail operational amplifier |
| 01/02/2013 | CN101807888B Class d amplifier |
| 01/02/2013 | CN101764582B Systems and methods for self-mixing adaptive bias circuit for power amplifier |
| 01/02/2013 | CN101588160B Operational amplifier capable of improving slew rate and related method thereof |
| 01/02/2013 | CN101459411B Class-D amplifier |
| 01/02/2013 | CN101399559B 声音信号处理装置 Audio signal processing means |
| 01/02/2013 | CN101320962B Amplifier circuit, digital-to-analog conversion circuit, and display device |
| 01/01/2013 | US8346096 Amplifier, optical receiver circuit, optical module and data exchange system |
| 01/01/2013 | US8345796 Communication system and method for improving efficiency and linearity |
| 01/01/2013 | US8344810 CMOS amplifier with integrated tunable band-pass function |
| 01/01/2013 | US8344809 System and method for adjusting gain frequency response of RF power amplifier |
| 01/01/2013 | US8344807 Distributed low noise amplifier |
| 01/01/2013 | US8344805 High-frequency differential amplifier circuit |
| 01/01/2013 | US8344804 Common-mode feedback circuit |
| 01/01/2013 | US8344803 Variable gain amplifier |
| 01/01/2013 | US8344802 Operational amplifier device |
| 01/01/2013 | US8344801 Variable class characteristic amplifier |
| 01/01/2013 | US8344799 Power amplifier and amplification method thereof |
| 12/27/2012 | WO2012178141A1 Systematic intermodulation distortion calibration for a differential lna |
| 12/27/2012 | WO2012176578A1 Power supply device for high-frequency power amplification circuit, and high-frequency power amplification circuit |
| 12/27/2012 | WO2012175709A1 Envelope tracking system for mimo |
| 12/27/2012 | WO2012175106A1 Power amplifier based on doherty power amplifier |
| 12/27/2012 | WO2012074806A3 Efficiency-optimizing, calibrated sensorless power/energy conversion in a switch-mode power supply |
| 12/27/2012 | US20120328988 Drawing apparatus, method of manufacturing article, and processing apparatus |
| 12/27/2012 | US20120326788 Amplifier Bandwidth Extension for High-Speed Tranceivers |
| 12/27/2012 | US20120326787 Variable-gain amplifier circcuit and receiver including the same |
| 12/27/2012 | US20120326786 Delay lines, amplifier systems, transconductance compensating systems and methods of compensating |
| 12/27/2012 | US20120326785 Difference amplifier arrangement with transconductance amplifier based current compensation |
| 12/27/2012 | US20120326784 Power amplifier |