| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 04/16/1985 | US4511857 For reducing nonlinear distortion |
| 04/16/1985 | US4511856 Bootstrap power regulator for systems such as analog to digital converters |
| 04/16/1985 | US4511854 Automatic linearity correcting circuit |
| 04/16/1985 | US4511853 Differential amplifier circuit having improved control signal filtering |
| 04/16/1985 | US4511852 Differential amplifier having balanced output |
| 04/09/1985 | US4510460 Output power control circuit for power amplifier |
| 04/09/1985 | US4510459 Wideband record amplifier |
| 04/09/1985 | US4510458 Amplifier circuit |
| 04/03/1985 | EP0135624A1 High power amplifier arrangement |
| 04/02/1985 | US4509101 Protection circuit for switching power amplifier |
| 04/02/1985 | US4509067 Semiconductor integrated circuit devices with protective means against overvoltages |
| 04/02/1985 | US4509019 Tunable active filter |
| 04/02/1985 | CA1184980A1 Baseband linearizer for wideband high power, nonlinear amplifiers |
| 03/26/1985 | US4507620 Ultra-rapid hybrid linear amplifier |
| 03/26/1985 | US4507619 Amplifier with signal-dependent voltage supply source |
| 03/19/1985 | CA1184258A1 Balancing compensation in differential amplifiers with a single-ended drive |
| 03/19/1985 | CA1184130A1 Apparatus for driving one or more transducer units |
| 03/12/1985 | US4504798 Transistor circuit including biassing circuit |
| 03/12/1985 | CA1183893A1 Operational rectifier and bias generator |
| 03/06/1985 | EP0133724A2 High-frequency amplifier with distortion compensation |
| 03/05/1985 | US4503478 Transistor power amplifier circuit |
| 02/27/1985 | EP0133506A2 Output stage for power amplifiers |
| 02/26/1985 | US4502020 Settling time reduction in wide-band direct-coupled transistor amplifiers |
| 02/26/1985 | US4502017 Operational amplifier having frequency compensation |
| 02/26/1985 | CA1183279A1 Circuit arrangement comprising an integrated semiconductor circuit |
| 02/19/1985 | US4500850 Audio amplifier apparatus with minimum non-linear distortion |
| 02/19/1985 | US4500848 Field effect transistor microwave amplifier |
| 02/19/1985 | US4500847 Transistor amplifier variable matching transformer apparatus |
| 02/19/1985 | US4500846 Circuit for effecting improved slew rate of operational amplifiers |
| 02/14/1985 | WO1985000682A1 Ambient light and electromagnetic noise reduction circuit |
| 02/13/1985 | EP0132863A1 Protection circuit |
| 02/13/1985 | EP0132760A2 FET power amplifying apparatus |
| 02/12/1985 | US4499432 Low voltage op amp bias optimizer |
| 02/12/1985 | US4499431 Driver circuit configuration for the output stage of electronic power amplifiers |
| 02/05/1985 | US4498058 Low input capacitance amplifier |
| 02/05/1985 | US4498057 Power amplifier with power supply switching |
| 02/05/1985 | US4498053 Current amplifier |
| 02/05/1985 | CA1182167A1 Supply voltage sense amplifier |
| 01/31/1985 | WO1985000478A1 Circuit with adjustable amplitude and rolloff frequency characteristics |
| 01/29/1985 | US4496911 Integrated amplifier circuit |
| 01/29/1985 | US4496909 Biasing method for improved performance in field effect devices |
| 01/29/1985 | US4496908 Negative feedback amplifier having GaAs FET's |
| 01/23/1985 | EP0131725A2 Method and circuit for compensating non linear amplitude and/or phase distortions |
| 01/22/1985 | US4495640 Adjustable distortion guitar amplifier |
| 01/22/1985 | US4495537 Controlled current limiter |
| 01/22/1985 | US4495470 Offset balancing method and apparatus for a DC amplifier |
| 01/22/1985 | US4495429 Limiter amplifier |
| 01/22/1985 | US4494551 Alterable frequency response electrocardiographic amplifier |
| 01/15/1985 | US4494164 Overload protection device |
| 01/15/1985 | US4494146 Wideband kinescope driver amplifier |
| 01/15/1985 | US4494078 Class BC power amplifier |
| 01/15/1985 | CA1181139A1 Power amplifier for supplying electric power to a load by switching of power supply voltage |
| 01/15/1985 | CA1181138A1 Transconductance amplifier |
| 01/09/1985 | EP0130664A1 Signal cuber |
| 01/08/1985 | US4492932 Amplifier circuit having a high-impedance input and a low-impedance output |
| 01/08/1985 | US4492929 Operational amplifier having enhanced gain through current feedback |
| 01/08/1985 | CA1180774A1 Limiter amplifier |
| 01/08/1985 | CA1180773A1 Differential amplifier with differential to single- ended conversion function |
| 01/02/1985 | EP0130082A2 Logic and amplifier cells |
| 01/02/1985 | CA1180398A Switched capacitor gain stage with offset and switch feedthrough cancellation scheme |
| 01/01/1985 | US4491809 Matching circuit for a pre-amplifier of SHF band television signal receiver |
| 01/01/1985 | US4491804 Bias circuit which is independent of output device voltage characteristics for biasing an amplifier in class AB operation |
| 01/01/1985 | US4491803 Current-limiting mechanism for a precision differential amplifier |
| 01/01/1985 | US4491802 Wide-band amplifier system |
| 01/01/1985 | US4491800 Switching circuit operable as an amplifier and a muting circuit |
| 12/27/1984 | CA1180066A Circuit for linearly gain controlling a differential amplifier |
| 12/25/1984 | US4490685 Differential amplifier |
| 12/25/1984 | US4490684 Adaptive quadrature combining apparatus |
| 12/18/1984 | US4489283 Power amplifier |
| 12/18/1984 | US4489245 D.C. Voltage bias circuit in an integrated circuit |
| 12/12/1984 | EP0127693A1 Method for the automatic output power control of an amplifier |
| 12/11/1984 | US4488122 Method and apparatus for compensating non-linear phase shift through an RF power amplifier |
| 12/04/1984 | US4486720 Protective circuit for power amplifier |
| 12/04/1984 | US4486718 High gain transistor amplifier producing an output free from noise carried on the power voltage |
| 11/28/1984 | EP0126330A2 Enhanced-accuracy semiconductor power amplifier |
| 11/27/1984 | US4485350 Variable electronic impedance circuit |
| 11/27/1984 | US4485349 Stabilized microwave power amplifier system |
| 11/21/1984 | EP0125646A1 A biasing circuit for multifunction bipolar integrated circuits |
| 11/20/1984 | US4484151 Amplifier circuit |
| 11/20/1984 | US4484150 High efficiency, light weight audio amplifier and power supply |
| 11/20/1984 | US4484148 Current source frequency compensation for a CMOS amplifier |
| 11/20/1984 | US4484147 Bootstrapped shunt feedback amplifier |
| 11/20/1984 | CA1178345A1 Protective circuit for power amplifier |
| 11/14/1984 | EP0124983A2 Feedback amplifier |
| 11/13/1984 | US4483016 Audio amplifier |
| 11/13/1984 | US4482868 Output stage for a driver circuit having low quiescent output current |
| 11/13/1984 | US4482867 Microwave power transmitter for doppler radar |
| 11/13/1984 | US4482820 Integrated circuit having stray capacitance compensation |
| 11/13/1984 | CA1177913A1 Amplifier arrangement with very low distortion |
| 11/08/1984 | WO1984004421A1 Circuit for effecting improved slew rate of operational amplifiers |
| 11/07/1984 | EP0124132A2 Switched-capacitor circuit analog-to-digital converter |
| 11/06/1984 | US4481660 Apparatus for driving one or more transducer units |
| 11/06/1984 | US4481597 Borehole spectral analog to digital converter |
| 11/06/1984 | US4481553 Protection circuit |
| 11/06/1984 | US4481521 Insulated gate field effect transistor provided with a protective device for a gate insulating film |
| 11/06/1984 | US4481483 Low distortion amplifier circuit |
| 11/06/1984 | US4481482 Class BC power amplifier |
| 11/06/1984 | US4481481 Buffer inverter circuit with adaptive bias |
| 11/06/1984 | US4481480 Feedback amplifier having a voltage-controlled compensation circuit |
| 11/06/1984 | US4481479 Negative-feedback circuit for an, especially integrated, transistor _amplifier |