| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 06/29/1988 | EP0272688A2 An output amplifier for a charge transfer device |
| 06/29/1988 | CN87108161A Electronics shf switching device |
| 06/28/1988 | US4754234 Broadband distributed amplifier for microwave frequences |
| 06/28/1988 | US4754229 Matching circuit for a microwave device |
| 06/28/1988 | US4754227 Recirculating broadband loop with tunable bandpass filter |
| 06/28/1988 | US4754224 Circuit arrangement for converting an input voltage into a proportional output signal |
| 06/28/1988 | US4754169 Differential circuit with controllable offset |
| 06/28/1988 | CA1238696A1 Cmos operational amplifier with improved common-mode rejection |
| 06/28/1988 | CA1238695A1 Folded cascode field-effect transistor amplifier with increased gain |
| 06/28/1988 | CA1238694A1 Cmos differential amplifier stage with bulk isolation |
| 06/28/1988 | CA1238693A1 Cmos transconductance circuit with triode mode input |
| 06/22/1988 | EP0271953A2 Gain-controlled amplifier |
| 06/21/1988 | US4752747 Device for increasing the output power of a low-tension operated radio set, particularly of the car radio set type |
| 06/21/1988 | US4752746 Wideband microwave matrix amplifier |
| 06/21/1988 | US4752745 Opto-isolated bias circuit for operating push-pull amplifiers in class A and class AB modes |
| 06/21/1988 | US4752744 Balanced transformer-less amplifier circuit |
| 06/21/1988 | US4752743 For pre-distorting the input signal |
| 06/15/1988 | CN87212339U High efficient otl power amplifier |
| 06/15/1988 | CN87201942U Wide frequency band amplifier for tv antenna |
| 06/14/1988 | US4751681 Dynamic differential amplifier |
| 06/14/1988 | US4751474 Broadband amplifier incorporating a circuit device effective to improve frequency response |
| 06/14/1988 | US4751472 High frequency amplifier |
| 06/09/1988 | DE3738310A1 Vorspannschaltung zum erzeugen praeziser stroeme in einer integrierten schaltung Bias circuit to generate a more specific currents in an integrated circuit |
| 06/09/1988 | DE3640969A1 Arrangement for linearising a transmitter output stage |
| 06/08/1988 | EP0270156A1 Filter arrangement |
| 06/08/1988 | EP0160035B1 High efficiency igfet operational amplifier |
| 06/07/1988 | US4750217 Optical receivers |
| 06/07/1988 | US4749959 Multiple FET device having direct-coupled stages for improved microwave operation |
| 06/07/1988 | US4749958 Operational amplifier |
| 06/07/1988 | US4749956 Fully-differential operational amplifier for MOS integrated circuits |
| 06/07/1988 | US4749955 Low voltage comparator circuit |
| 06/07/1988 | US4749880 Circuit for detecting level of input voltage |
| 06/07/1988 | US4749877 Bias circuit for an FET |
| 06/07/1988 | CA1237807A1 Seismic detection method and apparatus |
| 06/02/1988 | WO1988004115A1 Amplifier having a constant-current bias circuit |
| 06/02/1988 | WO1988004114A1 A signal-shaping network |
| 06/01/1988 | EP0269162A1 Filter arrangement |
| 06/01/1988 | DE3736735A1 Verfahren und schaltungsanordnung zum vermindern der erholzeit eines mos-differenz-spannungs-vergleichers Method and circuit arrangement for reducing the recovery time of a mos-difference-voltage comparator |
| 06/01/1988 | CN86101843B Even q resonant amplifier |
| 05/31/1988 | US4748423 Hot standby amplifier apparatus |
| 05/31/1988 | US4748421 Enhanced class SM power amplifier |
| 05/31/1988 | US4748420 For converting an input differential voltage into output differential current |
| 05/31/1988 | US4748419 Isolation amplifier with precise timing of signals coupled across isolation barrier |
| 05/25/1988 | EP0268159A2 Semiconductor amplifier circuit |
| 05/24/1988 | US4746877 Direct-coupled wideband amplifier |
| 05/24/1988 | US4746875 Differential amplifier using N-channel insulated-gate field-effect transistors |
| 05/18/1988 | EP0267391A1 Switching amplifier |
| 05/18/1988 | CN86107860A Double-winding voice-coil speaker and its power amplifier circuit |
| 05/17/1988 | US4745369 Circuit arrangement for protection against thermal overload of traveling wave tube amplifiers having multicollector traveling wave tubes |
| 05/17/1988 | US4745368 Switching amplifier |
| 05/17/1988 | CA1236891A1 Amplifier arrangement |
| 05/17/1988 | CA1236890A1 Amplifier arrangement |
| 05/17/1988 | CA1236889A1 Amplifier arrangement |
| 05/17/1988 | CA1236708A1 Universal connector means for transducer/monitor systems |
| 05/11/1988 | EP0266551A1 Non-contacting voltage metering apparatus |
| 05/11/1988 | EP0266394A1 Power amplifier module for a shaker |
| 05/10/1988 | US4743862 JFET current mirror and voltage level shifting apparatus |
| 05/10/1988 | US4743860 Audio power amplifier |
| 05/10/1988 | US4743859 Amplifying circuit arrangement having means for distortion correction |
| 05/10/1988 | US4743858 R. F. power amplifier |
| 05/10/1988 | US4743856 Digital optical receiver circuit |
| 05/05/1988 | DE3635878A1 Voltage-controlled current source |
| 05/04/1988 | EP0265680A1 Wide bandwidth low distortion class b amplifier |
| 05/04/1988 | CN87205606U Audiofrequency power amplifier with fet elements |
| 05/04/1988 | CN86107132A Common base amplifier circuit biased with transistor |
| 05/03/1988 | US4742311 Circuit arrangement with a load connected to the output of an amplifier especially for NMR |
| 05/03/1988 | US4742309 Line receiver |
| 05/03/1988 | US4742308 Balanced output analog differential amplifier circuit |
| 05/03/1988 | CA1236178A1 Power amplifying apparatus |
| 04/27/1988 | EP0265044A1 Level shift circuit for differential signals |
| 04/27/1988 | EP0264960A2 An FM modulator |
| 04/27/1988 | EP0264812A2 Preamplifier circuit |
| 04/26/1988 | US4740760 Circuit technique for eliminating impact ionization in a differential pair used in an output stage |
| 04/26/1988 | US4740686 Optical sensor circuitry |
| 04/26/1988 | CA1235748A1 Replica circuit |
| 04/21/1988 | WO1988002953A1 High voltage amplifier |
| 04/21/1988 | DE3635603A1 Active antenna having an extremely linear amplifier |
| 04/20/1988 | EP0264171A2 Gain selectable amplifier with resonance compensation |
| 04/20/1988 | EP0264161A2 Active filter with bootstrapping |
| 04/20/1988 | EP0264160A2 Differential impedance neutralization circuit |
| 04/19/1988 | US4739283 Variable transient response control for linear integrated-circuit high-frequency amplifiers |
| 04/19/1988 | US4739282 Current bleeder amplifier with positive feedback |
| 04/19/1988 | US4739281 Analog buffer amplifier |
| 04/19/1988 | US4739280 Amplifier circuit having reduced crossover distortion |
| 04/19/1988 | US4739198 Signal output circuit of a push-pull type |
| 04/19/1988 | US4739174 Converting circuit having first and second optically coupled phototransistors and first and second operational amplifiers |
| 04/19/1988 | CA1235462A1 Gallium arsenide differential amplifier with closed loop bias stabilization |
| 04/13/1988 | EP0263572A2 Voltage-controlled push-pull current source |
| 04/13/1988 | CN86101540A High-efficiency class-a audio power amplifier |
| 04/12/1988 | US4737735 Phantom powered amplifier |
| 04/12/1988 | US4737732 Low voltage operational amplifier having a substantially full range output voltage |
| 04/12/1988 | US4737696 Actuator drive circuit |
| 04/12/1988 | US4737668 Circuit arrangement for reducing the settling time of logarithmic amplifiers |
| 04/12/1988 | CA1235190A1 Polar loop transmitter |
| 04/07/1988 | WO1988002575A1 Amplifier |
| 04/06/1988 | EP0263006A1 Differential circuit |
| 04/06/1988 | EP0262986A1 Amplifier |
| 04/06/1988 | EP0262480A1 Current mirror circuit arrangement |
| 04/05/1988 | US4736124 High speed data bus structure |
| 04/05/1988 | CA1234939A1 Power amplifier |