| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 06/13/1995 | US5424680 Predistorter for high frequency optical communications devices |
| 06/13/1995 | US5424678 Muting of computer sound system during power cycling |
| 06/13/1995 | US5424675 Full differential type analog circuit having parallel oppositely connected capacitors to eliminate unbalanced parasitic capacitances |
| 06/13/1995 | US5424663 Integrated high voltage differential sensor using the inverse gain of high voltage transistors |
| 06/13/1995 | CA2035845C Constant-amplitude wave combination type amplifier |
| 06/08/1995 | WO1995015613A1 Predistorter for high frequency optical communications devices |
| 06/08/1995 | WO1995015612A1 Switch-mode power supply for a bridged linear amplifier |
| 06/07/1995 | EP0656685A1 Amplifier arrangement with feedback |
| 06/07/1995 | CN1028824C Slew rate speed-up circuit |
| 06/06/1995 | US5423082 Method for a transmitter to compensate for varying loading without an isolator |
| 06/06/1995 | US5423078 Dual mode power amplifier for analog and digital cellular telephones |
| 06/06/1995 | US5423074 AM-FM transmitter power amplifier |
| 06/06/1995 | US5422804 Power supply which reduces distortions |
| 06/06/1995 | US5422598 High-frequency power amplifier device with drain-control linearizer circuitry |
| 06/06/1995 | US5422593 Current-limiting circuit |
| 06/06/1995 | US5422522 Device for biasing an RF device operating in quasi-linear modes with temperature compensation |
| 05/31/1995 | EP0655831A1 High performance transconductance operational amplifier, of the CMOS integrated type |
| 05/31/1995 | EP0655176A1 Amplifier stage with low thermal distortion |
| 05/31/1995 | CN2199639Y Absolute linear audiofrequency amplifier |
| 05/31/1995 | CN1103215A Amplifier with feedback having high power supply rejection |
| 05/30/1995 | US5420542 Varactor compensation in amplifier circuits |
| 05/30/1995 | US5420541 Microwave doherty amplifier |
| 05/30/1995 | US5420538 Linear bipolar junction transistor amplifier |
| 05/30/1995 | US5420536 Linearized power amplifier |
| 05/30/1995 | US5420535 Audio amplifier turn-off control circuit |
| 05/30/1995 | US5420526 Circuit for pulling an integrated circuit input to a determined state |
| 05/30/1995 | US5420524 Differential gain stage for use in a standard bipolar ECL process |
| 05/30/1995 | CA2039283C Electronic equipment differential output stage |
| 05/26/1995 | WO1995014329A1 Class ab amplifier with improved phase margin |
| 05/24/1995 | EP0654896A1 Transimpedance amplifier circuit with feedback and load resistor variable circuits |
| 05/24/1995 | DE4402340C1 Integrated power transistor circuit |
| 05/24/1995 | DE4339906A1 Interference monitoring for signal processor or communication system |
| 05/24/1995 | CN1102937A Cartesian multicarrier feedback |
| 05/23/1995 | US5418493 Differential amplifier with common-mode rejection |
| 05/23/1995 | US5418492 Fully differential non-op-amp-based positive feedback BJT biquad filter |
| 05/23/1995 | US5418490 Failure responsive alternate amplifier and bypass system for communications amplifier |
| 05/23/1995 | US5418450 Coupling circuit for a measuring instrument |
| 05/23/1995 | CA2136251A1 Adjustable clip detection system |
| 05/23/1995 | CA2033031C Linear amplifier |
| 05/18/1995 | WO1995013652A1 Apparatus and method for frequency compensating an operational amplifier |
| 05/18/1995 | WO1995013588A1 Circuit for generating a buffered output |
| 05/17/1995 | EP0653835A1 Control of distortion in a line-powered amplifier with a rail-to-rail output voltage swing |
| 05/16/1995 | US5416442 Slew rate enhancement circuit for class A amplifier |
| 05/16/1995 | US5416365 Local feedback stabilized emitter follower cascade |
| 05/16/1995 | US5416351 Electrostatic discharge protection |
| 05/10/1995 | EP0652635A1 A differential gain stage for use in standard bipolar ECL processes |
| 05/10/1995 | EP0651906A1 Semiconductor-emulation of vacuum tubes |
| 05/09/1995 | US5414386 Muting apparatus in car audio system |
| 05/04/1995 | WO1995012245A1 Method and apparatus for controlling a peak envelope power of a power amplifier |
| 05/03/1995 | EP0651500A1 Operational amplifier |
| 05/03/1995 | EP0651441A1 High-frequency semiconductor device with protection device |
| 05/02/1995 | US5412344 Class AB amplifier with improved phase margin |
| 05/02/1995 | US5412342 Power amplifier device comprising a plurality of feedforward distortion compensating circuits in parallel |
| 05/02/1995 | US5412339 High frequency amplifier |
| 05/02/1995 | US5412336 Self-biasing boot-strapped cascode amplifier |
| 05/02/1995 | US5412309 Current amplifiers |
| 05/02/1995 | US5412235 Monolithic integrated circuit including gate bias transistor controlling the gate bias applied to an amplifying transistor |
| 04/27/1995 | WO1995011546A1 Audio frequency power amplifier |
| 04/26/1995 | EP0650254A1 Circuit for controlling the rise of the output voltage of an amplifier at start up |
| 04/25/1995 | US5410276 RF modulation using a pulsed DC power supply |
| 04/25/1995 | US5410273 Low distortion operational amplifier |
| 04/25/1995 | US5410271 Non-linear feedback network providing a linear transfer function |
| 04/25/1995 | US5410270 Differential amplifier circuit having offset cancellation and method therefor |
| 04/20/1995 | DE4335132A1 Wide-band amplifier circuit |
| 04/19/1995 | EP0649218A1 Gain enhancement technique for operational amplifiers |
| 04/19/1995 | CN1101769A Utilizing method of active filter in various electronic circuit |
| 04/18/1995 | US5408697 Temperature-compensated gain-controlled amplifier having a wide linear dynamic range |
| 04/18/1995 | US5408691 Radio transmitter apparatus which optimizes load impedance to maximize output transmitter efficiency while preserving minimum battery power output |
| 04/18/1995 | US5408199 Gain control amplifier having reduced feedback resistance |
| 04/12/1995 | EP0648012A1 Power control for cartesian amplifiers |
| 04/12/1995 | EP0648011A1 Amplifier arrangements |
| 04/12/1995 | EP0648010A1 Frequency compensation circuit for stabilising a differential amplifier with cross-coupled transistors |
| 04/12/1995 | EP0647374A1 Cartesian multicarrier feedback |
| 04/11/1995 | US5406226 Stable, narrow bandwidth, high frequency amplifier with low power consumption |
| 04/11/1995 | US5406225 Bias control circuit for radio-frequency power amplifier |
| 04/11/1995 | US5406224 Circuit for stabilizing RF amplifier |
| 04/11/1995 | US5406220 Pole/zero compensation in cascode amplifiers |
| 04/11/1995 | US5406146 Circuit and method for generating a buffered output having low distortion |
| 04/11/1995 | US5406145 Push-pull-type amplifier circuit |
| 04/11/1995 | US5406141 High voltage CMOS switching circuit |
| 04/06/1995 | DE4433594A1 Biquad filter |
| 04/05/1995 | EP0647019A1 Circuit for limiting the maximum current value supplied to a load by a power MOS |
| 04/05/1995 | CN1101181A Feedback loop closure in a linear transmitter |
| 04/04/1995 | US5404378 Distortion compensating circuit |
| 04/04/1995 | US5404114 Method and apparatus for providing transmitter protection |
| 04/04/1995 | US5404113 High efficiency power amplifier |
| 04/04/1995 | US5404097 Voltage to current converter with negative feedback |
| 04/04/1995 | US5404058 Level detecting circuit |
| 04/04/1995 | US5404053 Circuit for controlling the maximum current in a MOS power transistor used for driving a load connected to earth |
| 03/29/1995 | EP0645884A1 Current mode amplifier chain, operational amplifier, gain cell and corresponding amplifying elements |
| 03/29/1995 | EP0645059A1 Compensating for non-linear effects in signal processing with active devices |
| 03/28/1995 | US5402086 Signal noise reduction system |
| 03/28/1995 | US5402085 Process and device for compensation of phase instabilities of the wave amplified by a microwave tube |
| 03/28/1995 | US5401995 Circuit with diode-protected emitter resistors |
| 03/23/1995 | DE4433528A1 Überlast-Nachweis-Schaltkreis für einen Leistungsverstärker Overload detection circuit for a power amplifier |
| 03/22/1995 | EP0644650A1 Constant-amplitude wave combination type amplifier |
| 03/22/1995 | EP0613597A4 Shunt-expansive predistortion linearizers for optical analog transmitters. |
| 03/21/1995 | US5399992 Amplifier device capable of performing highly efficient operation at low power |
| 03/21/1995 | US5399990 Differential amplifier circuit having reduced power supply voltage |
| 03/21/1995 | US5399988 FT doubler amplifier |