| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/22/2008 | US20080116975 Class AB differential current conveyor input stage for a fully differential current feedback amplifier |
| 05/22/2008 | US20080116974 Pulse amplifier |
| 05/22/2008 | US20080116973 Distributed multi-stage amplifier |
| 05/22/2008 | US20080116972 Amplifier driver |
| 05/22/2008 | US20080116971 Amplifying pusles of different duty cycles |
| 05/22/2008 | US20080115564 Method Of Processing An Analog Sensor Signal In A Gas Sensor Arrangement And Measured Value Processing Device |
| 05/21/2008 | EP1923992A1 Multi-octave differential upconverter |
| 05/21/2008 | EP1922808A1 Electronic network circuit with disymmetrical differential pairs |
| 05/21/2008 | EP1922807A1 Device for amplifying a voltage representing a sound amplifying information |
| 05/21/2008 | EP1922805A1 A self-oscillating modulator |
| 05/21/2008 | EP1690336A4 Input/output signals preserver circuit of amplification circuits |
| 05/21/2008 | EP1652300B1 Differential circuits |
| 05/21/2008 | EP1606875B1 Systems and methods for protection of audio amplifier circuits |
| 05/21/2008 | EP0970523B1 Radio architecture |
| 05/21/2008 | DE202007000891U1 Verstärker-Schaltungsanordnung mit integrierter Testschaltung Amplifier circuit with integrated test circuit |
| 05/21/2008 | CN201063800Y RF power amplifier device and hand-held terminal device |
| 05/21/2008 | CN201063587Y TDD RF high power LDMOS amplifier gate voltage control circuit |
| 05/21/2008 | CN201063586Y Petroleum logging telegauge cable transmission driving thick film circuit |
| 05/21/2008 | CN101185239A Signal converting circuit |
| 05/21/2008 | CN101183856A Operational amplifier circuit, bandpass filter circuit, and infrared signal processing circuit |
| 05/21/2008 | CN101183855A D-type amplifier |
| 05/21/2008 | CN101183854A Amplifier |
| 05/21/2008 | CN101183302A Audio-frequency amplifier system |
| 05/20/2008 | US7375590 Single-ended input to differential-ended output low noise amplifier implemented with cascode and cascade topology |
| 05/20/2008 | US7375589 Power amplifier system provided with improved protection function |
| 05/20/2008 | US7375588 Transmission amplifier |
| 05/20/2008 | US7375586 Low voltage structure for gain boosting in high gain amplifiers |
| 05/20/2008 | US7375585 Circuit and method for switching active loads of operational amplifier input stage |
| 05/20/2008 | US7375568 Logic circuit with restrained leak current to differential circuit |
| 05/20/2008 | US7375544 Semiconductor apparatus having logic level decision circuit and inter-semiconductor apparatus signal transmission system |
| 05/20/2008 | US7375540 Process monitor for monitoring and compensating circuit performance |
| 05/20/2008 | CA2266230C Electron beam tubes |
| 05/15/2008 | WO2008009012A3 Transformer coupling of antennas |
| 05/15/2008 | WO2007146075A3 Analog signal transition detector |
| 05/15/2008 | US20080112711 Operational amplifier circuit, bandpass filter circuit, and infrared signal processing circuit |
| 05/15/2008 | US20080111632 Cascode low noise amplifier with a source coupled active inductor |
| 05/15/2008 | US20080111631 High-frequency power amplifier improved in size and cost |
| 05/15/2008 | US20080111630 Small size power amplifier with amplifiers switched |
| 05/15/2008 | US20080111627 Analog circuit, electronic instrument, and operational amplifier |
| 05/15/2008 | US20080111626 Rail-to-rail class-AB operational amplifier |
| 05/15/2008 | US20080111625 Detection device, sensor, and electronic instrument |
| 05/15/2008 | US20080111624 Class-D driving method for stereo load |
| 05/15/2008 | US20080111622 Hybrid Doherty Amplifier System and Method |
| 05/15/2008 | US20080111621 Amplifier Circuit and Method for Reducing Voltage and Current Noise |
| 05/15/2008 | US20080111620 Noise reduction system and method for audio switching amplifier |
| 05/15/2008 | US20080111619 Apparatus and method for controlling a common-mode voltage of switching amplifiers |
| 05/15/2008 | US20080111587 Input receiver with negative voltage generator and related method |
| 05/15/2008 | DE10336881B4 Hochfrequenzanregungsanordnung mit einer Begrenzungsschaltung High-frequency excitation system with a limiting circuit |
| 05/15/2008 | DE102006053323A1 Integrated circuit, has adjusting units causing adjustment of output voltage of instrument amplifier in operating phase, and causing shift of output voltage of amplifier in another operating phase |
| 05/15/2008 | DE102006052611A1 Linear broadband amplifier e.g. measuring amplifier, for measuring techniques, has amplifier stages connected in parallel between hybrid couplers, where stages are based on transistors made of semiconductor materials with large band gaps |
| 05/14/2008 | EP1921747A1 Amplifier arrangement and method for amplication |
| 05/14/2008 | EP1921746A1 Electronic circuit for the adjustment of the output power and / or frequency characteristic of the power amplifier for a hearing aid |
| 05/14/2008 | EP1920532A2 Power conversion regulator with predictive energy balancing |
| 05/14/2008 | EP1698050A4 Gate control circuit with soft start/stop function |
| 05/14/2008 | EP1581993B1 Common gate with resistive feed-through low noise amplifier |
| 05/14/2008 | EP1554799B1 High frequency amplifier in an integrated circuit |
| 05/14/2008 | CN101180793A Fast setting, low noise, low offset operational amplifier and method |
| 05/14/2008 | CN101180792A Integrated doherty type amplifier arrangement with high power efficiency |
| 05/14/2008 | CN101179258A Data receiver circuit, data driver, and display device |
| 05/14/2008 | CN101179257A High-frequency power amplifier improved in size and cost |
| 05/14/2008 | CN101178883A 数据驱动器及显示装置 A data driver and display device |
| 05/14/2008 | CN101178882A Clock generator, data driver, clock generating method for liquid crystal display device |
| 05/14/2008 | CN101178371A Electronic gun power supply for reflected high energy electron diffraction instrument |
| 05/14/2008 | CN101178330A Photocurrent sensing circuit as well as photosensor and electronic device |
| 05/14/2008 | CN100388623C Parallel distortion signal generator and power amplifier applied circuit thereof |
| 05/13/2008 | US7372336 Small-sized on-chip CMOS power amplifier having improved efficiency |
| 05/13/2008 | US7372335 Wideband circuits and methods |
| 05/13/2008 | US7372334 Output match transistor |
| 05/13/2008 | US7372333 Monolithic supply-modulated RF power amplifier and DC-DC power converter IC |
| 05/13/2008 | US7372332 Optimizing power consumption in amplifiers |
| 05/13/2008 | US7372331 Receiver circuit |
| 05/13/2008 | US7372330 Variable gain amplifier |
| 05/13/2008 | US7372329 Method and apparatus to remove the DC component of a feedback signal |
| 05/13/2008 | US7372328 Amplification circuit for driving a laser signal |
| 05/13/2008 | US7372327 Input structure for a power amplifier and associated methods |
| 05/13/2008 | US7372324 Digital amplifier |
| 05/13/2008 | US7372322 Current drive circuit reducing VDS dependency |
| 05/13/2008 | US7371564 Apparatus for automatically analyzing genetic and protein materials using photodiodes |
| 05/08/2008 | WO2008055090A1 Methods and devices for amplifying a signal |
| 05/08/2008 | WO2008054766A2 System and method for pre-charging a current mirror |
| 05/08/2008 | WO2008054705A2 Low noise amplifier having improved linearity |
| 05/08/2008 | WO2008054649A1 Circuit and method for biasing a gallium arsenide (gaas) power amplifier |
| 05/08/2008 | WO2008054275A1 Dynamic range improvements of load modulated amplifiers |
| 05/08/2008 | WO2008053534A1 Doherty amplifier |
| 05/08/2008 | WO2007109738A3 Class l amplifier |
| 05/08/2008 | US20080107216 By-pass arrangement of a low noise amplifier |
| 05/08/2008 | US20080106338 Received-light amplifier |
| 05/08/2008 | US20080106337 Bias current compensation circuit for a differential input stage |
| 05/08/2008 | US20080106336 Differential amplifier with current source controlled through differential feedback |
| 05/08/2008 | US20080106335 Differential circuit |
| 05/08/2008 | US20080106334 Low-voltage operational amplifier and operational amplifying method |
| 05/08/2008 | US20080106332 Switching Low Noise Amplifier |
| 05/08/2008 | US20080106331 Switching Low Noise Amplifier |
| 05/08/2008 | US20080106330 Feedback amplifier circuit operable at low voltage by utilizing switched operational amplifier and chopper modulator |
| 05/07/2008 | EP1918995A2 Semiconductor device |
| 05/07/2008 | EP1917730A2 Method and apparatus for control of transmitter power consumption |
| 05/07/2008 | EP1714384A4 Adaptive bias current circuit and method for amplifiers |
| 05/07/2008 | EP1665519A4 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
| 05/07/2008 | EP1632023A4 Low distortsion class-d amplifier using carrier reference signal symmetry modulation |
| 05/07/2008 | CN101174826A Power electronic switching circuit and its method for controlling and switching dead time |