| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/17/1990 | US4918398 Differential amplifier using voltage level shifting to achieve rail-to-rail input capability at very low power supply voltage |
| 04/17/1990 | US4918341 High speed static single-ended sense amplifier |
| 04/17/1990 | US4918338 Drain-biassed transresistance device for continuous time filters |
| 04/12/1990 | DE3834258A1 Differential amplifier |
| 04/11/1990 | EP0363332A2 High resolution, fully differential CMOS comparator |
| 04/11/1990 | EP0362935A2 Drain-biassed transresistance device |
| 04/11/1990 | CN1041230A Current-source arrangement |
| 04/10/1990 | US4916410 Hybrid-balun for splitting/combining RF power |
| 04/10/1990 | US4916409 Signal conditioner system for musical instruments |
| 04/10/1990 | US4916408 Power stage with increased output dynamics |
| 04/10/1990 | US4916338 FET buffer amplifier |
| 04/04/1990 | EP0361781A2 Protective circuit for magnetoresistive element |
| 04/04/1990 | EP0361342A2 Optical receiver with a widened dynamic range |
| 04/04/1990 | EP0360884A1 CMOS differential comparator with offset voltage |
| 04/03/1990 | US4914533 Differential amplifier with differential outputs |
| 04/03/1990 | US4914440 Adjustable current source and digital/analog converter with autocalibration using such a source |
| 04/03/1990 | US4914402 Opto-electronic transimpedance amplifier |
| 04/03/1990 | US4914401 Implementation and control of filters |
| 04/03/1990 | US4914400 Differential amplifier circuit improved to shorten a circuit recovery time thereof |
| 04/03/1990 | US4914399 Induction coil driver |
| 03/28/1990 | EP0359836A1 Circuitry with an amplifier connected to an optoelectric transducer |
| 03/28/1990 | CN1040891A Amplified circuit |
| 03/27/1990 | US4912430 Current source as a microwave biasing element |
| 03/27/1990 | US4912429 Operational amplifier |
| 03/27/1990 | US4912427 Power supply noise rejection technique for amplifiers |
| 03/27/1990 | US4912426 Amplifier circuit |
| 03/27/1990 | US4912425 Operational amplifier circuit having stable operating point |
| 03/27/1990 | US4912423 Chopper-stabilized operational transconductance amplifier |
| 03/21/1990 | EP0359477A2 Linearization of an amplification in an RF amplifier |
| 03/21/1990 | EP0359315A1 Current-source arrangement |
| 03/20/1990 | US4910480 Hierarchical current amplifier |
| 03/20/1990 | US4910478 Amplifier circuit and method of controlling output power thereof |
| 03/20/1990 | US4910477 Bridge-type linear amplifier with wide dynamic range and high efficiency |
| 03/20/1990 | US4910476 High-frequency amplifier with automatic neutrodyning circuit |
| 03/15/1990 | DE3831109A1 Circuit arrangement for converting an optical signal into an electrical signal |
| 03/15/1990 | DE3829722A1 Circuit for generating alternating voltages with an improved conversion efficiency |
| 03/14/1990 | EP0358295A2 Sum/differential signal processing circuit |
| 03/14/1990 | EP0358266A2 Operational amplifier circuit |
| 03/14/1990 | EP0357993A2 Differential operational amplifier with common mode signal feedback |
| 03/14/1990 | CN2054593U Low input capacitance voltage following unit |
| 03/14/1990 | CN1007200B Image displaying device |
| 03/13/1990 | US4908870 Motional load driver |
| 03/07/1990 | EP0357591A2 Charge amplifier circuit |
| 03/07/1990 | EP0357365A2 An audio amplifier |
| 03/07/1990 | EP0357294A2 Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals |
| 03/07/1990 | EP0357131A2 Amplifier arrangement, in particular for amplifying a digital signal |
| 03/07/1990 | EP0357125A1 Current amplifier |
| 03/07/1990 | CN1007110B Amplifier arrangement |
| 03/06/1990 | US4907201 MOS transistor circuit |
| 03/06/1990 | US4906943 Differential operational amplifier with common mode feedback |
| 03/06/1990 | US4906915 Voltage to absolute value current converter |
| 03/06/1990 | US4906836 Integrated circuit using logarithmic amplifier |
| 03/01/1990 | DE3829135A1 Operational amplifier with a wide bandwidth |
| 02/28/1990 | EP0355985A2 A signal repeater assembly for a spacecraft |
| 02/28/1990 | EP0355979A2 Power amplifying assembly |
| 02/28/1990 | EP0355918A1 Voltage-to-current converter |
| 02/28/1990 | EP0355906A1 Voltage-to-current converters |
| 02/28/1990 | EP0355670A2 Low noise microwave amplifier having optimal stability, gain, and noise control |
| 02/28/1990 | CN1007031B Optical receiver |
| 02/27/1990 | US4905086 Television transmitter employing klystron with nonlinearity correction circuit |
| 02/27/1990 | US4904953 Differential amplifier with common-mode bias feedback |
| 02/27/1990 | US4904952 Differential amplifier incorporating negative resistance |
| 02/27/1990 | US4904951 Method and circuit for reducing effects of distributed capacitance associated with large thin film resistors |
| 02/27/1990 | US4904860 Optical signal detection circuit with constant current sources |
| 02/22/1990 | WO1990001831A1 Wide-band amplifier |
| 02/22/1990 | DE3827882A1 Arrangement for the drive of an actuator as a function of setting direction and travel |
| 02/20/1990 | US4903302 Arrangement for controlling the amplitude of an electric signal for a digital electronic apparatus and corresponding method of control |
| 02/20/1990 | US4903241 Read circuit having a limited-bandwidth amplifier for holding the output of a delay circuit |
| 02/20/1990 | US4902985 Microwave reflectiion amplifiers having increased bandwidth |
| 02/20/1990 | US4902984 Differential amplifier |
| 02/20/1990 | US4902982 Nonlinear noninverting transimpedance amplifier |
| 02/20/1990 | US4902886 Noise reduction for photodiode arrays |
| 02/15/1990 | DE3827579A1 Transmitter arrangement |
| 02/14/1990 | EP0354587A2 Power saving low frequency power amplifier |
| 02/14/1990 | EP0354557A2 Differential amplifier with an improved gain characteristic in a high frequency region |
| 02/13/1990 | US4901032 Digitally controlled variable power amplifier |
| 02/13/1990 | US4901031 Method of achieving high speed |
| 02/13/1990 | US4901030 Operational amplifier stages |
| 02/13/1990 | US4901029 Solid-state high power amplifier arrangement |
| 02/13/1990 | US4901028 Field emitter array integrated distributed amplifiers |
| 02/07/1990 | EP0354060A2 Delta sigma modulator arrangement |
| 02/07/1990 | EP0353742A2 Amplifier |
| 02/07/1990 | EP0353406A1 High-voltage switch |
| 02/07/1990 | EP0353403A1 Modulating amplifier for high voltages |
| 02/07/1990 | EP0265435B1 Circuit for protecting against interference voltages occurring on signalling lines |
| 02/06/1990 | US4899116 Apparatus and method for paralleling power field effect transistors in high frequency amplifiers |
| 02/06/1990 | US4899114 Voltage source amplifier for use in a pseudoternary code transmitter |
| 02/06/1990 | US4899064 Absolute value differential amplifier |
| 01/31/1990 | EP0352790A2 Integrator and active filter including integrator with simple phase compensation |
| 01/31/1990 | EP0352516A2 Integrated power transistor comprising means for reducing thermal stresses |
| 01/30/1990 | US4897617 Domino effect amplifier |
| 01/30/1990 | US4897616 Wide band amplifier with current mirror feedback to bias circuit |
| 01/30/1990 | US4897615 High efficiency amplifier |
| 01/30/1990 | US4897612 Operational transconductance amplifier with improved current source capability |
| 01/30/1990 | US4897611 Very high gain positive feedback CMOS transconductance amplifier |
| 01/30/1990 | US4897609 Axially coupled gyrotron and gyro TWTA |
| 01/30/1990 | US4897569 CMOS amplifier for memories |
| 01/30/1990 | CA1265216A1 Power amplifier |
| 01/30/1990 | CA1265214A1 Electrical circuit for use with a four-pole device |
| 01/29/1990 | EP0306519A4 Current sensing differential amplifier. |