| 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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| 01/21/1987 | EP0209178A1 Device for transmitting high-frequency pulses according to a certain shape, and radionavigation system comprising such a device |
| 01/21/1987 | EP0208765A1 Automatic reduction of intermodulation products in high power linear amplifiers. |
| 01/20/1987 | US4638507 Audio amplifier switch-on control circuit |
| 01/20/1987 | US4638260 Audio amplifier |
| 01/20/1987 | US4638258 Reference load amplifier correction system |
| 01/20/1987 | US4638215 Circuit assembly for temperature-dependent cathode current tracking in traveling-wave tubes |
| 01/20/1987 | US4638184 CMOS bias voltage generating circuit |
| 01/14/1987 | EP0208433A2 Response-gain independent amplifier |
| 01/14/1987 | EP0208365A1 Voltage-current converter |
| 01/14/1987 | EP0112387B1 Stabilized high efficiency radio frequency amplifier |
| 01/13/1987 | US4636745 Signal waveform equalizing circuitry |
| 01/13/1987 | US4636742 Constant-current source circuit and differential amplifier using the same |
| 01/13/1987 | US4636741 Multi-level power amplifying circuitry for portable radio transceivers |
| 01/13/1987 | US4636739 Circuit for reducing the occurrence of spurious signals on an output of an electronic circuit when the circuit power supply is switched on and off |
| 01/13/1987 | CA1216638A1 Predistortion circuit |
| 01/08/1987 | DE3522635A1 High-frequency amplifier with detector for multi-carrier operation, and application |
| 01/06/1987 | US4634994 Bipolar logical circuit arrangement for signal regeneration |
| 01/06/1987 | US4634894 Low power CMOS reference generator with low impedance driver |
| 12/30/1986 | US4633191 Transformer isolated high voltage, high power amplifier system |
| 12/30/1986 | US4633190 Voltage and current source fluctuation compensator and method |
| 12/30/1986 | US4633165 Temperature compensated voltage reference |
| 12/30/1986 | EP0206607A2 Wideband feedback amplifier |
| 12/30/1986 | EP0206557A2 Low power feedforward amplifier |
| 12/30/1986 | EP0205756A2 Working-point stabilized and linearized travelling-wave tube amplifier |
| 12/23/1986 | US4631495 Low-noise RF preamplifier (especially for nuclear magnetic resonance system) |
| 12/23/1986 | US4631493 Circuit for DC biasing |
| 12/23/1986 | US4631491 Bipolar transistor RF power amplifier |
| 12/16/1986 | US4630164 Protective circuit for complementary field-effect transistors |
| 12/16/1986 | US4629996 Feed-forward microwave power amplifier with difference signal distortion cancellation circuit |
| 12/16/1986 | US4629910 High input impedance circuit |
| 12/16/1986 | CA1215435A1 Transistorized amplification stage polarization device and utilization of same in such amplification stage |
| 12/16/1986 | CA1215434A1 Bias current reference circuit having a substantially zero temperature coefficient |
| 12/09/1986 | US4628281 Feedback amplifier with reduced distortion |
| 12/09/1986 | US4628280 Amplifier arrangement |
| 12/09/1986 | US4628279 Wideband feedback amplifier |
| 12/09/1986 | US4628278 For amplifying an input signal |
| 12/09/1986 | US4628274 Amplifier with input drift voltage compensation |
| 12/03/1986 | EP0203475A2 Integrated circuit RF amplifier module |
| 12/02/1986 | US4626794 Amplifier circuit using a P channel MOS transistor |
| 11/25/1986 | US4625178 Feedforward gain block with mirror image error amplifier |
| 11/25/1986 | EP0160694A4 Bias circuit for dynamically switchable low drop current source. |
| 11/25/1986 | CA1214524A1 Protection circuit |
| 11/20/1986 | EP0201728A2 Power amplifier with multiple end stages |
| 11/18/1986 | US4623950 Protective device for a power element of an integrated circuit |
| 11/18/1986 | CA1214228A1 Audio frequency amplifier supplied with dynamic power on demand |
| 11/12/1986 | EP0105911B1 A circuit for a high impedance signal source |
| 11/12/1986 | CA1213948A Gain amplifier |
| 10/29/1986 | EP0199381A1 Amplifier arrangement |
| 10/29/1986 | CN85102973A Electric current and voltage conversion amplifier and especially preliminary amplifier of light-receiving device |
| 10/22/1986 | EP0198478A2 Amplifier circuit |
| 10/21/1986 | US4618832 Differential amplifier with improved power supply rejection ratio |
| 10/21/1986 | US4618814 Voltage-to-current converter circuit |
| 10/15/1986 | EP0197704A2 Electric signal amplifiers |
| 10/14/1986 | US4617524 Integrated amplifier circuit having RC network to suppress oscillation |
| 10/14/1986 | US4617522 Temperature regulated feedforward amplifier |
| 10/09/1986 | WO1986005931A1 Circuit for the power-limitation of short-circuit resistant final stages |
| 10/09/1986 | WO1986005930A1 Broad band signal amplifier |
| 10/08/1986 | EP0196703A1 Amplifier arrangement |
| 10/08/1986 | EP0196631A2 Integrable high frequency, wide band and superlinear amplifier and its fabrication |
| 10/07/1986 | US4616145 Adjustable CMOS hysteresis limiter |
| 10/01/1986 | EP0196239A1 Audio frequency signal predistortion apparatus in a pulse width modulation system of an AM radiotransmitter |
| 10/01/1986 | EP0196131A1 Amplifier arrangement |
| 09/30/1986 | US4614916 Circuit for transforming direct-current signals |
| 09/30/1986 | US4614914 Low-distortion transformer-coupled circuit |
| 09/24/1986 | EP0195525A1 Low power CMOS reference generator with low impedance driver |
| 09/24/1986 | EP0195500A2 Charge-pump circuit for a phase-locked loop |
| 09/23/1986 | US4613824 Selective amplifier having common base connected transistor and inductive input signal coupling |
| 09/23/1986 | US4613823 Multi-stage signal transmitting system |
| 09/23/1986 | CA1211801A1 Amplifier arrangement |
| 09/16/1986 | US4612514 Feedback amplifier |
| 09/16/1986 | US4612512 For a radio-frequency circuit |
| 09/16/1986 | US4612464 High speed buffer circuit particularly suited for use in sample and hold circuits |
| 09/09/1986 | US4611180 Grounded bridge amplifier protection through transistor thermo protection |
| 09/09/1986 | US4611179 Wide-band type high-frequency amplifier circuit |
| 09/03/1986 | EP0192970A1 Arrangement for reducing the hum noise in a klystron output amplifier |
| 09/02/1986 | US4609879 Circuitry for a selective push-pull amplifier |
| 08/26/1986 | US4608524 Output circuit and brushless motor using the same |
| 08/26/1986 | US4608502 I2 L gate circuit arrangement having a switchable current source |
| 08/19/1986 | US4607235 Amplifier arrangement comprising a protection circuit |
| 08/19/1986 | US4607233 Push-pull amplifier circuit with stable class AB operation |
| 08/19/1986 | US4607232 Low voltage amplifier circuit |
| 08/19/1986 | CA1210093A1 High frequency amplifier |
| 08/12/1986 | US4605907 Precisely adjustable voltage controlled current mirror amplifier |
| 08/12/1986 | US4605906 Differential pair amplifier enhancement circuit |
| 08/12/1986 | US4605905 Amplifier input circuitry with compensation for pyroelectric effects |
| 08/12/1986 | US4605866 D.C. biassing of MESFETs to prevent oscillation during power supply switching |
| 08/06/1986 | EP0190073A1 Class AB amplifier and its distortion-correcting network |
| 08/06/1986 | EP0189489A1 Constant biasing circuit and operational amplifier using said circuit |
| 08/05/1986 | US4604589 High frequency circuit |
| 08/05/1986 | US4604586 Amplifier with current mirror circuit for controlling amplification temperature dependency |
| 08/05/1986 | US4604584 Switched capacitor precision difference amplifier |
| 08/05/1986 | US4604568 Current source with adjustable temperature coefficient |
| 07/31/1986 | WO1986004469A1 Automatic reduction of intermodulation products in high power linear amplifiers |
| 07/29/1986 | US4603303 Level compensation circuit |
| 07/29/1986 | US4603291 Nonlinearity correction circuit for bandgap reference |
| 07/29/1986 | CA1208710A1 Cmos operational amplifier |
| 07/29/1986 | CA1208709A1 Device for linearizing a high frequency amplifier with complex non linearity coefficients |
| 07/23/1986 | EP0188401A2 Reference voltage source |
| 07/23/1986 | EP0188090A2 Operational ampflifier |
| 07/22/1986 | US4602221 High frequency energy source |