| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 07/09/2013 | US8482354 Power amplifying device and coupled power amplifying device |
| 07/09/2013 | US8482353 Doherty amplifier |
| 07/09/2013 | US8482352 Differential amplifier stage with integrated offset cancellation circuit |
| 07/09/2013 | US8482351 Power amplifier and method for amplifying signal based on power amplifier |
| 07/09/2013 | US8482350 Low RF interference switching amplifier and method |
| 07/09/2013 | US8482348 Class of power amplifiers for improved back off operation |
| 07/09/2013 | US8482346 High efficiency balanced output amplifier system |
| 07/09/2013 | US8482265 Current balance circuit utilizing multiplexers and triangular wave generators |
| 07/04/2013 | WO2013098597A1 Ultrafast transimpedance amplifier interfacing electron multipliers for pulse counting applications |
| 07/04/2013 | WO2013019819A3 Zero-voltage-switching contour based outphasing power amplifier |
| 07/04/2013 | US20130171949 Apparatus and method for gain of driver amplifier exponential variable in wireless transmitter |
| 07/04/2013 | US20130170309 Sense-amplifier circuit of memory and calibrating method thereof |
| 07/04/2013 | US20130169460 Delta-sigma modulator, integrator, and wireless communication device |
| 07/04/2013 | US20130169366 Doherty amplifier and semiconductor device |
| 07/04/2013 | US20130169364 Amplifier and Transceiver Including the Amplifier |
| 07/04/2013 | US20130169363 Body Biasing Device and Operational Amplifier thereof |
| 07/04/2013 | US20130169362 Input clamping structure for sound quality improvement in car-radio class-ab power amplifier design |
| 07/04/2013 | US20130169361 Multi-Stage Fully Differential Amplifier with Controlled Common Mode Voltage |
| 07/04/2013 | US20130169360 Apparatus |
| 07/04/2013 | US20130169358 High Speed Power Supply System |
| 07/04/2013 | US20130169356 Switching power amplifier and method of controlling the same |
| 07/04/2013 | DE10305360B4 Hochfrequenz-Verstärkerschaltung mit veränderbarer Ausgangskapazität High-frequency amplifier circuit with variable output capacity |
| 07/04/2013 | DE102011122894A1 Cascade circuit of circuit assembly for power amplifier, has feedback element that is connected between drain terminal of secondary transistor and control terminal of primary transistor |
| 07/04/2013 | DE102005007876B4 Verstärkerschaltung mit reduzierter Temperaturabhängingkeit der Verstärkung Amplifier circuit with reduced Temperaturabhängingkeit the gain |
| 07/03/2013 | EP2611029A2 Power distortion-based servo control systems for frequency tuning Rf power sources |
| 07/03/2013 | EP2611028A1 Multi-stage fully differential amplifier with controlled common mode voltage |
| 07/03/2013 | EP2609686A2 Tunable radio front end and methods |
| 07/03/2013 | EP2609680A1 Push-push oscillator circuit |
| 07/03/2013 | CN203039666U Single-end conversion differential circuit and radio frequency power amplifier |
| 07/03/2013 | CN203039647U Linear amplification circuit for micro signals |
| 07/03/2013 | CN203039646U High-performance operational amplifier |
| 07/03/2013 | CN203039645U 1 KW wideband power amplifier |
| 07/03/2013 | CN103190082A Electronic component |
| 07/03/2013 | CN103187941A Weak signal amplification circuit |
| 07/03/2013 | CN103187940A Programmable amplifier and receiver |
| 07/03/2013 | CN103187939A High stability transconductor |
| 07/03/2013 | CN103187938A Difference simulation front end device for low-frequency signal detection and transmission system |
| 07/03/2013 | CN103187937A Differential radio-frequency amplifier based on dynamic self-biasing circuit |
| 07/03/2013 | CN103187935A Circulator power amplifier circuit and design method thereof |
| 07/03/2013 | CN103187932A Power amplifier and predistorter thereof |
| 07/03/2013 | CN103187931A Circuit structure for realizing dead time exemption in Class D audio power amplifier |
| 07/03/2013 | CN103187930A Input clamp used in design of class AB power amplifier of automobile stereo for improving sound quality |
| 07/03/2013 | CN102176659B Transconductance-enhanced recovery current folded MOS (metal oxide semiconductor) transistor cascade amplifier |
| 07/03/2013 | CN102119484B Power amplification device, and transmission device and communication device using same |
| 07/03/2013 | CN102064770B Remote radio unit and method for regulating drain voltage thereof |
| 07/03/2013 | CN101931371B Magnetic suspension bearing control power amplification integrated system |
| 07/03/2013 | CN101652925B Flexible dynamic range amplifier |
| 07/02/2013 | US8476981 Unbalanced/balanced conversion differential amplifier |
| 07/02/2013 | US8476980 High frequency power amplifier |
| 07/02/2013 | US8476978 Headphone driver/charge pump combination |
| 07/02/2013 | US8476977 LCD driving circuit using operational amplifier and LCD display apparatus using the same |
| 07/02/2013 | US8476975 Operational amplifying device |
| 07/02/2013 | US8476974 Differential amplifier and method for the operation of a differential amplifier |
| 07/02/2013 | US8476572 Optical receiver circuit |
| 06/27/2013 | WO2013095432A1 Low power squelch circuit |
| 06/27/2013 | WO2013094626A1 Class-d power amplifier |
| 06/27/2013 | WO2013094416A1 High-frequency module and mobile terminal using same |
| 06/27/2013 | WO2013094415A1 Semiconductor integrated circuit device and high-frequency power amplifier module |
| 06/27/2013 | WO2013094265A1 Power amplifier and power amplification method |
| 06/27/2013 | WO2013093861A1 Adaptive predistortion for a non-linear subsystem based on a model as a concatenation of a non-linear model followed by a linear model |
| 06/27/2013 | WO2013093859A1 Architecture of nonlinear rf filter-based transmitter |
| 06/27/2013 | WO2013093616A2 Output stage for wireless transmitter |
| 06/27/2013 | WO2013091905A1 Radio frequency power amplifier circuit and method |
| 06/27/2013 | WO2013067031A3 Apparatus and methods for power amplifiers |
| 06/27/2013 | US20130163789 Amplifier and amplifying method |
| 06/27/2013 | US20130163788 Power supply circuits for audio amplifiers |
| 06/27/2013 | US20130162353 Signal amplification circuit |
| 06/27/2013 | US20130162352 Differential power management and power amplifier architecture |
| 06/27/2013 | US20130162351 Power amplifier and liquid jet printing apparatus |
| 06/27/2013 | US20130162350 Power amplifier |
| 06/27/2013 | US20130162347 Identifying circuit |
| 06/27/2013 | US20130162240 System and Method for Gain Adjustment in Transimpedance Amplifier Configurations for Analyte Measurement |
| 06/27/2013 | DE112011102954T5 Verstärker und Verstärkungsverfahren Amplifier and amplification method |
| 06/27/2013 | DE102012112256A1 Vollständig kapazitiv gekoppelte Eingangszerhacker Fully capacitively coupled Eingangszerhacker |
| 06/26/2013 | EP2608410A1 A method for pulse width modulation of signals, and a transmitter therefor |
| 06/26/2013 | EP2608403A1 A method for signal modulation using pulse width modulators |
| 06/26/2013 | EP2608402A1 Using a new synchronization scheme for a multi-channel class-d amplifier |
| 06/26/2013 | EP2608401A1 Circuit for transmitting ASK RF signals with adaptation of the edges of the data signals |
| 06/26/2013 | EP2608400A1 N way Doherty amplifier |
| 06/26/2013 | CN203027461U Audio module and audio player |
| 06/26/2013 | CN203027209U Automatic biased error amplifying circuit |
| 06/26/2013 | CN203027208U Radio frequency control circuit |
| 06/26/2013 | CN203027207U Operational amplifying circuit with capacitive load |
| 06/26/2013 | CN203027206U Circuit restraining backward flow of series operational amplifier circuit |
| 06/26/2013 | CN203027205U Circuit for solving self excitation problem of capacitive load operational amplifier circuit |
| 06/26/2013 | CN203027204U Wideband direct current amplifier |
| 06/26/2013 | CN203027203U Active capacitive circuit |
| 06/26/2013 | CN203027202U Circuit for solving backward flowing problem of series connection current of operational amplifiers |
| 06/26/2013 | CN103181077A Amplifier gain adjustment in response to reduced supply voltage |
| 06/26/2013 | CN103178797A Combined power amplifier |
| 06/26/2013 | CN103178796A High-output amplitude difference frequency indicator based on log amplifier |
| 06/26/2013 | CN103178795A Difference frequency indicator based on log amplifier |
| 06/26/2013 | CN103178794A 单芯片功率放大器 Single-chip power amplifier |
| 06/26/2013 | CN103178793A High-efficiency variable gain E-type radio frequency power amplifier |
| 06/26/2013 | CN103178792A Wireless communication device |
| 06/26/2013 | CN103178791A Power amplifying circuit and a wireless communication device provided with power amplifying circuit |
| 06/26/2013 | CN103178790A Multimode radio frequency amplifying device |
| 06/26/2013 | CN103178789A Low-temperature drift detuning self-calibration operational amplifier circuit and design method thereof |
| 06/26/2013 | CN102098012B Detection and amplification device for micro current |
| 06/26/2013 | CN101860327B Cascode amplifier and method for controlling current of the same |