| 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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| 05/08/1984 | US4447790 Distortion eliminating circuit |
| 05/08/1984 | CA1167119A1 Buffer amplifier |
| 05/02/1984 | EP0107250A1 Operational amplifier |
| 05/02/1984 | EP0107028A2 Circuit arrangement with a transistor output circuit and a protection circuit for limiting the output current of the transistor output circuit |
| 05/02/1984 | EP0106953A1 Amplifier |
| 05/01/1984 | US4446443 Amplifier having reduced power dissipation and improved slew rate |
| 05/01/1984 | US4446442 Amplifier circuit |
| 05/01/1984 | US4446441 Transient noise free type amplifier circuit |
| 05/01/1984 | US4446440 Dual mode amplifier |
| 05/01/1984 | US4446383 Reference voltage generating circuit |
| 04/26/1984 | WO1984001678A1 Amplifier circuit |
| 04/25/1984 | EP0106378A1 Electronic power overload protection circuit |
| 04/25/1984 | EP0106188A1 Integrated amplifier circuit |
| 04/25/1984 | EP0106088A1 Integrated semiconductor amplifier circuit |
| 04/24/1984 | US4445095 Audio amplifier |
| 04/17/1984 | US4443771 Power amplifier |
| 04/17/1984 | CA1165829A1 Integrated amplifier arrangement |
| 04/17/1984 | CA1165828A1 Circuit arrangement comprising two cross-coupled differential amplifiers |
| 04/17/1984 | CA1165826A1 Integrated circuit comprising a plurality of voltage- current converters |
| 04/10/1984 | US4442411 Circuit for the load-proportional adjustment of the driving current of a single-ended output transistor of a transistor amplifier, operated in a common-emitter circuit |
| 04/10/1984 | US4442410 Oil well logging tool amplifier |
| 04/10/1984 | US4442408 Differential amplifier with auto bias adjust |
| 04/04/1984 | EP0104950A2 A differential amplifier circuit |
| 04/04/1984 | EP0104852A2 Audio amplifier |
| 04/04/1984 | EP0104752A1 A bias voltage supply circuit |
| 04/03/1984 | US4441137 In a signal processing system |
| 04/03/1984 | US4441086 Audio system with orderly shutdown sequence |
| 04/03/1984 | US4441085 Signal amplifying apparatus |
| 04/03/1984 | US4441081 Switching power driving circuit arrangement |
| 04/03/1984 | US4441040 Integrable semiconductor circuit with a negatively fed-back, non-inverting operational amplifier |
| 04/03/1984 | CA1164962A1 Amplifier arrangement whose overall gain is controllable by means of a control voltage |
| 03/29/1984 | WO1984001243A1 Thermal stabilisation of negative conductance semiconductor devices |
| 03/27/1984 | USRE31545 Feed-forward amplifier |
| 03/27/1984 | US4439802 Overvoltage guard for electronic circuits |
| 03/27/1984 | US4439745 For receiving an input signal |
| 03/27/1984 | US4439744 Variable power amplifier |
| 03/27/1984 | US4439743 Biasing circuit for power amplifier |
| 03/27/1984 | US4439742 Circuit for simulating vacuum tube compression in transistor amplifiers |
| 03/27/1984 | US4439741 Stabilized high efficiency radio frequency amplifier |
| 03/27/1984 | US4439740 Corporate amplifier apparatus with improved degradation |
| 03/21/1984 | EP0103455A2 Power supply circuit |
| 03/20/1984 | US4438411 Temperature compensating method and apparatus for thermally stabilizing amplifier devices |
| 03/20/1984 | US4438354 Monolithic programmable gain-integrator stage |
| 03/13/1984 | US4437135 Semiconductor integrated circuit device |
| 03/13/1984 | US4437070 Amplifier arrangement whose overall gain is controllable by means of a control voltage |
| 03/13/1984 | US4437069 Low noise tuned amplifier |
| 03/06/1984 | US4435844 Remote control circuit |
| 03/06/1984 | US4435686 Extended cascode amplifier |
| 03/06/1984 | US4435685 Amplifier arrangement |
| 02/28/1984 | US4434405 Multiple amplifier interconnection for optimal sensitivity |
| 02/22/1984 | EP0101201A2 Monolithic integrated circuit device including AC negative feedback type high frequency amplifier circuit |
| 02/21/1984 | US4433312 Method and means for modulating waves |
| 02/21/1984 | US4433307 Power supply changeover type power amplifier |
| 02/21/1984 | US4433306 Audio-frequency power amplifier |
| 02/21/1984 | US4433305 Amplifier circuit |
| 02/21/1984 | US4433302 Amplifier with independent quiescent output voltage control |
| 02/21/1984 | US4433301 Equalization preamplifier with high frequency gain peaking |
| 02/21/1984 | CA1162484A1 High efficiency, light weight audio amplifier and power supply |
| 02/15/1984 | EP0100464A2 Distributed amplifier |
| 02/14/1984 | US4431973 Operational amplifier |
| 02/14/1984 | US4431972 Push-pull amplifier |
| 02/14/1984 | CA1162239A1 Latch-up prevention circuit for power output devices using inductive loads |
| 02/07/1984 | US4430625 Power amplifier |
| 02/07/1984 | US4430624 Current mirror circuit arrangement |
| 02/07/1984 | US4430623 Monolithic amplifier comprising a power division and recombination system grouping a plurality of transistors |
| 02/07/1984 | US4430622 Offset correction circuit |
| 02/07/1984 | US4430621 CMOS Polarity switch |
| 02/07/1984 | US4430619 Adaptive radio frequency intermodulation minimizing apparatus |
| 02/07/1984 | CA1161911A1 High voltage, high frequency amplifier |
| 01/31/1984 | CA1161504A1 Analog integrated filter circuit |
| 01/24/1984 | US4427951 Protective device for power amplifier |
| 01/24/1984 | US4427949 Signal intercepting circuit |
| 01/19/1984 | WO1984000259A1 Current mirror circuit arrangement |
| 01/19/1984 | WO1984000258A1 Stabilized high efficiency radio frequency amplifier |
| 01/18/1984 | EP0098326A1 Circuit arrangement for signalling alarms |
| 01/04/1984 | EP0097565A1 Generator of fixed and/or mobile pulses with an incrementally variable arbitrary long delay |
| 01/04/1984 | EP0097427A1 Negative feedback amplifiers including directional couplers |
| 01/04/1984 | EP0097248A2 Switchable current source |
| 01/03/1984 | US4424461 Semiconductor integrated circuit providing temperature compensation |
| 01/03/1984 | CA1159914A1 Power amplifier connection |
| 12/28/1983 | EP0096944A1 Circuit with several signal paths formed by active arrangements |
| 12/28/1983 | EP0096820A1 High-frequency power amplifier with a modulation circuit |
| 12/27/1983 | US4423389 Amplifier with power supply switching |
| 12/27/1983 | US4423386 Multisignal amplification |
| 12/27/1983 | US4423357 Switchable precision current source |
| 12/27/1983 | CA1159523A1 Auto-zeroing operational amplifier circuit |
| 12/20/1983 | US4422050 Single-ended push-pull amplifier with two complementary push-pull circuits |
| 12/13/1983 | US4420785 Overvoltage protection circuit for line amplifiers |
| 12/13/1983 | US4420725 Wide-bandwidth low-distortion amplifier |
| 12/13/1983 | US4420723 Phase locked loop amplifier for variable amplitude radio waves |
| 12/13/1983 | US4420123 Force rate sensor assembly |
| 12/13/1983 | CA1158727A1 Driver circuit having reduced cross-over distortion |
| 12/08/1983 | WO1983004351A1 Current limiter and method for limiting current |
| 12/07/1983 | EP0095774A2 A switching circuit operable as an amplifier and a muting circuit |
| 12/07/1983 | EP0095758A1 Method of eliminating the distortion in amplifiers |
| 11/30/1983 | EP0095379A1 Oscillator circuit |
| 11/29/1983 | US4418321 Feedback amplifier or threshold value switch for a current feed differential stage |
| 11/29/1983 | CA1157920A1 Differential amplifier |
| 11/23/1983 | EP0094485A1 Differential amplifier with auto bias adjust |
| 11/22/1983 | US4417292 Power amplifier protection circuit |