| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 09/27/2011 | US8026767 Adaptive bias circuit and system thereof |
| 09/27/2011 | US8026764 Generation and amplification of substantially constant envelope signals, including switching an output among a plurality of nodes |
| 09/27/2011 | US8026763 Asymmetric multilevel outphasing architecture for RF amplifiers |
| 09/27/2011 | US8026762 High efficiency transmitter for wireless communication |
| 09/27/2011 | US8026551 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 09/22/2011 | WO2011115649A1 Feedback loop with parallel forward paths |
| 09/22/2011 | WO2011115533A1 Envelope tracking switching hybrid |
| 09/22/2011 | WO2011115109A1 Source follower amplifier |
| 09/22/2011 | WO2011098861A8 High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications |
| 09/22/2011 | WO2011077246A8 Multi-band wideband power amplifier digital predistortion system |
| 09/22/2011 | WO2011055964A3 Doherty amplifier |
| 09/22/2011 | US20110228171 Automatically setting an operative state of a wideband amplifier |
| 09/22/2011 | US20110227654 Power amplifying apparatus and power amplifying method |
| 09/22/2011 | US20110227653 Electronic Circuit Output Stage |
| 09/22/2011 | US20110227652 Differential Amplifier and Method for the Operation of a Differential Amplifier |
| 09/22/2011 | US20110227651 Programmable gain amplifier and transconductance compensation system |
| 09/22/2011 | US20110227650 Received-light amplifying circuit and optical disc apparatus |
| 09/22/2011 | US20110227649 Apparatus and method for variable gain transconductance |
| 09/22/2011 | US20110227648 Silicon-on-Insulator High Power Amplifiers |
| 09/22/2011 | US20110227647 Differential amplifier and source driver |
| 09/22/2011 | US20110227646 Discrete time operational transconductance amplifier for switched capacitor circuits |
| 09/22/2011 | US20110227645 Class-d power amplifier |
| 09/22/2011 | US20110227639 Method and Apparatus for Suppressing Bitline Coupling Through Miller Capacitance to a Sense Amplifier Interstitial Node |
| 09/22/2011 | DE102010012269A1 Differenzverstärker und Verfahren zum Betreiben eines Differenzverstärkers Differential amplifier and method of operating a differential amplifier |
| 09/22/2011 | DE102010012190A1 Switched amplifier i.e. audio amplifier, has circuit unit connected with oscillating circuit and transformer, where operating voltage is provided as alternating voltage that lies between nodes during operation of amplifier |
| 09/22/2011 | DE102008010963B4 Pufferschaltkreis Buffer circuit |
| 09/21/2011 | EP2367285A1 A sample-and-hold amplifier |
| 09/21/2011 | EP2366221A1 Amplifier with dither |
| 09/21/2011 | EP2092639B1 True current limit |
| 09/21/2011 | EP1912328B1 Highly efficient amplifier |
| 09/21/2011 | EP1532731B1 High power doherty amplifier |
| 09/21/2011 | CN201985820U 一种功率放大器模块及一种rfid阅读器 A power amplifier module and one kind of rfid reader |
| 09/21/2011 | CN201985819U Gain-adjustable low-noise balanced amplifier |
| 09/21/2011 | CN102197584A Power amplifier and amplifying method employed therein |
| 09/21/2011 | CN102195583A Device and method for controlling gain of transimpedance amplifier of lithium niobate (LiNbO3) modulator |
| 09/21/2011 | CN102195579A Switched capacitor amplifier circuit with clamping |
| 09/21/2011 | CN102195578A Output buffer circuit and method capable of inhibiting voltage overshoot |
| 09/21/2011 | CN102195577A Class-D power amplifier |
| 09/21/2011 | CN102195576A Audio amplifier working in double modes |
| 09/21/2011 | CN102195575A Power amplifier system |
| 09/21/2011 | CN102195574A Power amplifier device |
| 09/21/2011 | CN102195573A System and method with a balun function with reference enhancement in single-end port |
| 09/21/2011 | CN102195572A Dual-mode power amplifier system with transformer |
| 09/21/2011 | CN102195571A Switched capacitor amplifier |
| 09/21/2011 | CN102195570A Light amplification circuit and photocoupler |
| 09/21/2011 | CN102193063A Detector circuit and semiconductor device using same |
| 09/21/2011 | CN101242159B Systems and methods for power amplifiers with voltage boosting multi-primary transformers |
| 09/20/2011 | US8023995 Radio frequency device and mobile communication terminal using the same |
| 09/20/2011 | US8023422 Dual core crosspoint system |
| 09/20/2011 | US8022945 Operational amplifier with constant offset and apparatus comprising such as operational amplifier |
| 09/20/2011 | US8022771 Linearized trans-impedance amplifiers |
| 09/20/2011 | US8022770 System and method for preventing power amplifier supply voltage saturation |
| 09/20/2011 | US8022769 Semiconductor device |
| 09/20/2011 | US8022768 Doherty amplifier and method for operation thereof |
| 09/20/2011 | US8022767 High-speed, multi-stage class AB amplifiers |
| 09/20/2011 | US8022764 Differential amplifier |
| 09/20/2011 | US8022760 3-way Doherty amplifier with minimum output network |
| 09/20/2011 | US8022759 Dynamic range improvements of load modulated amplifiers |
| 09/20/2011 | US8022757 Class D power amplifier |
| 09/20/2011 | US8022756 Output circuits with class D amplifier |
| 09/20/2011 | US8022755 Amplifier with automatic gain profile control and calibration |
| 09/20/2011 | US8022537 Semiconductor device |
| 09/20/2011 | CA2641319C Method and apparatus for controlling an output voltage in a power amplifier |
| 09/15/2011 | WO2011112720A1 Class ab amplifiers |
| 09/15/2011 | WO2011111298A1 Digital amplifier |
| 09/15/2011 | WO2011111140A1 Variable gain amplifier |
| 09/15/2011 | WO2011111130A1 Semiconductor apparatus |
| 09/15/2011 | US20110222443 Lte-advanced (4g) front end radio architecture |
| 09/15/2011 | US20110221533 Amplifier circuit and method of amplifying a signal in an amplifier circuit |
| 09/15/2011 | US20110221532 Semiconductor integrated circuit device and communication system |
| 09/15/2011 | US20110221530 Class ab amplifiers |
| 09/15/2011 | US20110221521 Active Eye Opener for Current-Source Driven, High-Speed Serial Links |
| 09/14/2011 | EP2365629A1 Communication device and power correction method |
| 09/14/2011 | EP2365625A2 Control circuit, power conditioner including the control circuit, and photovoltaic system |
| 09/14/2011 | EP2365413A1 Voltage generator, control circuit, vector synthesis type phase shifter and optical transceiver |
| 09/14/2011 | EP2364524A1 Millimeter wave monolithic integrated circuits and methods of forming such integrated circuits |
| 09/14/2011 | EP2005582B1 Converter with parallel coupled differential input pairs |
| 09/14/2011 | EP1980017B1 Amplifier circuit |
| 09/14/2011 | EP1897216B1 Automatic bias control circuit for linear power amplifiers |
| 09/14/2011 | CN201976074U 气体传感器的放大电路 The amplifier circuit of the gas sensor |
| 09/14/2011 | CN201976073U 基于fpga设计的数字幅频均衡功率放大器 Fpga design based on digital amplitude-frequency balanced power amplifier |
| 09/14/2011 | CN201976072U 恒流源供电的音频及超声频单端甲类功率放大器 Constant current source power supply audio and ultrasonic frequency single-ended Class A power amplifiers |
| 09/14/2011 | CN1574610B Method of influencing an input signal and predistorter |
| 09/14/2011 | CN102187571A Self auto-calibration of analog circuits in a mixed signal integrated circuit device |
| 09/14/2011 | CN102187570A Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels |
| 09/14/2011 | CN102187393A Method and system for auditory enhancement and hearing conservation |
| 09/14/2011 | CN102185571A Conduction control method and device for peak value amplifier, and Doherty power amplifier |
| 09/14/2011 | CN102185570A RF (radio frequency) high-voltage isolation amplifier capable of supplying power wirelessly and simultaneously |
| 09/14/2011 | CN102185569A Output stage circuit of D-class amplifier |
| 09/14/2011 | CN102185568A Multi-combination power amplifier and realizing method thereof |
| 09/14/2011 | CN102185567A Low-noise amplifier used in navigation system receiver and having automatic calibration function |
| 09/14/2011 | CN102185565A Power amplifier and power amplifier circuit |
| 09/14/2011 | CN101699767B Feed circuit of radio frequency power amplifier |
| 09/14/2011 | CN101364800B Low noise switch capacitor circuit having embedded amplifier |
| 09/14/2011 | CN101326712B Piezoelectric transducer signal processing circuit |
| 09/13/2011 | US8019306 Amplifier and communication apparatus |
| 09/13/2011 | US8018288 High-linearity low noise amplifier |
| 09/13/2011 | US8018287 RF power amplifier apparatus and power supply circuit for controlling power-supply voltage to RF power amplifier |
| 09/13/2011 | US8018286 Low power integrated circuit |
| 09/13/2011 | US8018284 Method of using integrated power amplifier |