| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/26/2010 | CN1623232B RF amplifier and related module and method |
| 05/26/2010 | CN1578119B Non-linear compensation circuit, transmission apparatus and non-linear compensation method |
| 05/26/2010 | CN1541443B Open loop variable gain amplifier using replica gain cell and signal amplification method |
| 05/26/2010 | CN1533661B Line driver for digital signal transmission |
| 05/26/2010 | CN1516336B 音频功率放大器 Audio Power Amplifier |
| 05/26/2010 | CN1478265B Switched amplifier drive circuit for liquid crystal display and drive method |
| 05/26/2010 | CN101714854A Operational amplifier circuit and display apparatus |
| 05/26/2010 | CN101714853A Bipolar soft-switching PWM power amplifier |
| 05/26/2010 | CN101714852A Double-frequency radio-frequency power amplifier circuit chip |
| 05/26/2010 | CN101295964B Differential feedback amplifying circuit with cross coupling capacitor |
| 05/26/2010 | CN101142740B Arrangement for amplifying a PWM input signal |
| 05/26/2010 | CN101106356B Power amplification circuit and its initialization method and power amplification method |
| 05/26/2010 | CN101091306B Single-ended to differential transducer circuit |
| 05/26/2010 | CN101040434B 音频放大器 Audio Amplifiers |
| 05/26/2010 | CN101023642B Apparatus for receiving a differential signal using a differential amplifier |
| 05/25/2010 | US7724837 Efficient modulation of RF signals |
| 05/25/2010 | US7724596 Auto-zero current sensing amplifier |
| 05/25/2010 | US7724105 System and method of shaping a power spectrum in PWM amplifiers |
| 05/25/2010 | US7724092 Dual-path current amplifier |
| 05/25/2010 | US7724091 Matrix balun |
| 05/25/2010 | US7724089 Amplifying circuit |
| 05/25/2010 | US7724088 Push-pull amplifier |
| 05/25/2010 | US7724087 High speed differential receiver with rail to rail common mode operation having a symmetrical differential output signal with low skew |
| 05/25/2010 | US7724085 Impedance matched variable gain low noise amplifier using shunt feed-back |
| 05/25/2010 | US7724084 System and method for controlling radio frequency transmissions from an electronic device |
| 05/25/2010 | US7724083 Method and apparatus for Josephson distributed output amplifier |
| 05/25/2010 | US7724082 Method and apparatus for pulse width modulation in a switching amplifier |
| 05/25/2010 | US7724081 Amplifier front-end with low-noise level shift |
| 05/20/2010 | WO2010056736A2 Resource efficient adaptive digital pre-distortion system |
| 05/20/2010 | WO2010056646A1 An asymmetric multilevel outphasing architecture for rf amplifiers |
| 05/20/2010 | US20100124334 Amplification circuit and audio output equipment |
| 05/20/2010 | US20100123983 Operational amplifier circuit and arc fault circuit interrupter including the same |
| 05/20/2010 | US20100123521 Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on mosfet resistors |
| 05/20/2010 | US20100123520 Low Noise Binary-Coded Gain Amplifier and Method for Time-Gain Compensation in Medical Ultrasound Imaging |
| 05/20/2010 | US20100123518 Power amplifier and modulator thereof |
| 05/20/2010 | DE102008056562A1 Schaltung Circuit |
| 05/19/2010 | EP2187518A1 Differential output circuit and communication device |
| 05/19/2010 | EP2186284A1 Signal modulation for switched mode power amplifiers technical field of the invention |
| 05/19/2010 | EP1599936B1 Transimpedance amplifier with a high gain bandwidth for converting a dac-output current |
| 05/19/2010 | CN201479121U High-integrated frequency-hopping filter and power amplifier integrated component |
| 05/19/2010 | CN201479112U Balance output circuit and electronic equipment with same |
| 05/19/2010 | CN201479086U Milimeter wave detection logarithmic video amplifier |
| 05/19/2010 | CN201479085U Digimatic height gage driving circuit of medical linear accelerator treatment bed |
| 05/19/2010 | CN201479084U Pre-charging and pre-discharging LVDS driver |
| 05/19/2010 | CN201479083U Power amplified drive circuit |
| 05/19/2010 | CN201479082U Intermediate frequency signal amplifier of navigation radar |
| 05/19/2010 | CN201479081U gain-adjustable low-noise amplifier |
| 05/19/2010 | CN201479080U Impedance conversion amplifier |
| 05/19/2010 | CN201479079U Short-circuit protection device for power amplifier |
| 05/19/2010 | CN201477208U Underwater sound beacon with multiple working modes |
| 05/19/2010 | CN101710824A Class D amplifier |
| 05/19/2010 | CN101350598B Two-way feedback single-power supply audio power amplifier |
| 05/19/2010 | CN101207365B Gain bootstrap operational amplifier |
| 05/19/2010 | CN101151798B Amplifier apparatus |
| 05/19/2010 | CN101111992B Polar coordinate modulation circuit, polar coordinate modulation method, integrated circuit, and radio transmission apparatus |
| 05/19/2010 | CN101091308B Apparatus for providing amplification with multi-feedback path |
| 05/18/2010 | US7721232 Designated MOSFET and driver design to achieve lowest parasitics in discrete circuits |
| 05/18/2010 | US7720447 Radiofrequency (RF) and/or microwave power amplification device and corresponding radiocommunication terminal |
| 05/18/2010 | US7720129 Frequency-hopping carrier generator |
| 05/18/2010 | US7719364 High frequency power amplifier |
| 05/18/2010 | US7719361 Differential amplifier with current source controlled through differential feedback |
| 05/18/2010 | US7719360 Variable gain circuit |
| 05/18/2010 | US7719359 Low noise variable gain amplifier |
| 05/18/2010 | US7719358 Low frequency analog circuit and design method thereof |
| 05/18/2010 | US7719357 Differential amplifier with a plurality of input pairs |
| 05/18/2010 | US7719356 Pulse amplifier |
| 05/18/2010 | US7719353 LINC amplifying device |
| 05/14/2010 | WO2010053791A1 Amplifier with improved esd protection circuitry |
| 05/14/2010 | WO2010053554A1 Millimeter wave monolithic integrated circuits and methods of forming such integrated circuits |
| 05/14/2010 | WO2010052901A1 Variable frequency amplifier |
| 05/14/2010 | WO2010052825A1 Power amplifier and amplifying method employed therein |
| 05/14/2010 | WO2010052066A1 Circuit arrangement for amplifying a digital signal, and transceiver circuit for a bus system |
| 05/14/2010 | WO2010052065A1 High frequency differential amplifier and transceiver circuit |
| 05/14/2010 | WO2010025027A3 Method and apparatus for adjusting load impedance of a distributed amplifier |
| 05/13/2010 | US20100120391 Input stage for an amplifier |
| 05/13/2010 | US20100119073 Method and an apparatus for processing an audio signal |
| 05/13/2010 | US20100117739 Audio power amplifier and a pre-amplifier thereof |
| 05/13/2010 | US20100117738 Multilayer amplifier module |
| 05/13/2010 | US20100117737 Rf power amplifier |
| 05/13/2010 | US20100117736 Line driver capable of automatic adjustment of output impedance |
| 05/13/2010 | US20100117735 Circuit |
| 05/13/2010 | US20100117734 Programmable Gain Amplifier and Transconductance Compensation System |
| 05/13/2010 | US20100117733 Cross-differential amplifier |
| 05/13/2010 | US20100117732 Power amplifier and liquid jet printing apparatus |
| 05/13/2010 | US20100117731 Thermal regulation of a class-D audio amplifier |
| 05/13/2010 | US20100117730 D/A converter circuit and digital input class-D amplifier |
| 05/13/2010 | US20100117728 Signal Amplifiers Having Communications Paths that Automatically Terminate to a Matched Termination in Response to a Power Interruption and Related Methods |
| 05/13/2010 | US20100117727 Asymmetric multilevel outphasing architecture for rf amplifiers |
| 05/13/2010 | US20100117726 Amplifier apparatus |
| 05/13/2010 | US20100116969 Signal amplifier for optical receiver circuit |
| 05/12/2010 | EP2184778A1 Semiconductor device |
| 05/12/2010 | DE102008027765B3 Verstärkeranordnung und Verfahren zur Signalverstärkung Amplifier arrangement and method for signal amplification |
| 05/12/2010 | CN201467075U Physiotherapy instrument power amplifier |
| 05/12/2010 | CN201467074U Dynamic balance class A audio power amplifier |
| 05/12/2010 | CN1941614B Differential amplifier |
| 05/12/2010 | CN1941613B Class d amplifier |
| 05/12/2010 | CN1934784B Adaptive bias current circuit for amplifiers and method for producing same |
| 05/12/2010 | CN1929316B Variable gain RF amplifier |
| 05/12/2010 | CN1918798B Transmission power control device |
| 05/12/2010 | CN1909364B BTL-type amplifier circuit |