| 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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| 06/14/1988 | US4751474 Broadband amplifier incorporating a circuit device effective to improve frequency response |
| 06/14/1988 | US4751473 FET amplifier circuit |
| 06/14/1988 | US4751472 High frequency amplifier |
| 06/09/1988 | DE3640969A1 Arrangement for linearising a transmitter output stage |
| 06/08/1988 | EP0160035B1 High efficiency igfet operational amplifier |
| 06/07/1988 | US4750217 Optical receivers |
| 06/07/1988 | US4749958 Operational amplifier |
| 06/07/1988 | US4749957 Semiconductor transconductor circuits |
| 06/07/1988 | US4749953 Operational amplifier or comparator circuit with minimized offset voltage and drift |
| 06/07/1988 | US4749889 Temperature compensation apparatus |
| 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 | CN86101843B Even q resonant amplifier |
| 05/31/1988 | US4748423 Hot standby amplifier apparatus |
| 05/31/1988 | US4748420 For converting an input differential voltage into output differential current |
| 05/31/1988 | US4748418 Quasi auto-zero circuit for sampling amplifiers |
| 05/25/1988 | EP0268530A2 Oscillation-free, short-circuit protection circuit |
| 05/24/1988 | US4747161 AM-RF transmitter with compensation for power supply variations |
| 05/24/1988 | US4746875 Differential amplifier using N-channel insulated-gate field-effect transistors |
| 05/24/1988 | US4746874 Circuit layout for signal amplification |
| 05/17/1988 | US4745370 Adjustable phase shift 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 |
| 05/11/1988 | EP0266551A1 Non-contacting voltage metering apparatus |
| 05/10/1988 | US4743863 Device to increase the dynamic ratio of an amplifier circuit, especially that of an on-board MLS receiver |
| 05/10/1988 | US4743861 Frequency response compensation circuit |
| 05/10/1988 | US4743859 Amplifying circuit arrangement having means for distortion correction |
| 05/04/1988 | EP0265763A2 Frequency response compensation circuit |
| 05/04/1988 | EP0265680A1 Wide bandwidth low distortion class b amplifier |
| 05/03/1988 | US4742312 Power limiting audio amplifier temperature protection circuit |
| 05/03/1988 | US4742311 Circuit arrangement with a load connected to the output of an amplifier especially for NMR |
| 04/27/1988 | EP0264812A2 Preamplifier circuit |
| 04/27/1988 | EP0264631A1 Feedback amplifier compensation circuitry |
| 04/26/1988 | US4740760 Circuit technique for eliminating impact ionization in a differential pair used in an output stage |
| 04/26/1988 | CA1235797A1 Device for the automatic precorrection of non- linearities in a power amplification chain for a television transmitter |
| 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 | EP0264160A2 Differential impedance neutralization circuit |
| 04/20/1988 | EP0138901B1 Stabilized microwave power amplifier system |
| 04/19/1988 | US4739282 Current bleeder amplifier with positive feedback |
| 04/19/1988 | US4739280 Amplifier circuit having reduced crossover distortion |
| 04/18/1988 | EP0247157A4 Adaptive impedance mismatch detector system. |
| 04/13/1988 | EP0263601A2 Compensation and biasing of wideband amplifiers |
| 04/13/1988 | EP0263343A2 Power transistor with self-protection against direct secondary breakdown |
| 04/13/1988 | CN86101540A High-efficiency class-a audio power amplifier |
| 04/12/1988 | US4737733 Overdrive control of FET power amplifier |
| 04/12/1988 | US4737731 Method and apparatus for reducing distortion in amplifiers |
| 04/12/1988 | US4737668 Circuit arrangement for reducing the settling time of logarithmic amplifiers |
| 04/07/1988 | WO1988002575A1 Amplifier |
| 04/07/1988 | DE3633029A1 Electronic fuse for protecting the output stage transistors of an amplifier |
| 04/06/1988 | EP0262986A1 Amplifier |
| 04/05/1988 | US4736165 Distortion generating circuit |
| 04/05/1988 | US4736117 VDS clamp for limiting impact ionization in high density CMOS devices |
| 03/31/1988 | DE3731130A1 Spannungs/strom-wandleranordnung Voltage / current converter arrangement |
| 03/30/1988 | EP0261813A2 Linearizer for TWT amplifiers |
| 03/30/1988 | EP0261482A2 Operational amplifier |
| 03/29/1988 | US4734595 Device for controlling an output circuit of an integrated circuit |
| 03/22/1988 | US4733194 Apparatus and method for paralleling power field effect transistors in high frequency amplifiers |
| 03/16/1988 | EP0259403A1 Method for the compensation of the offset voltage of a regulating amplifier and circuit arrangement for implementing such method. |
| 03/16/1988 | CN85102973B Electric current and voltage conversion amplifier and especially preliminary amplifier of light-receiving device |
| 03/15/1988 | US4731588 Gain selectable amplifier with resonance compensation |
| 03/10/1988 | WO1988001808A1 Auto zero circuit for flow meter |
| 03/10/1988 | DE3727248A1 Power amplifier for an inductive load |
| 03/09/1988 | EP0259029A2 FET transconductance amplifier with improved linearity and gain |
| 03/09/1988 | EP0258735A2 Process circuit for use in voltage-output type sensors |
| 03/08/1988 | US4730168 CMOS output stage with large voltage swing and with stabilization of the quiescent current |
| 03/02/1988 | EP0257736A1 An amplifier having a cascade circuit |
| 03/02/1988 | EP0257345A2 Compensated current mirror |
| 03/02/1988 | EP0257200A2 Synchronized measuring amplifier |
| 03/01/1988 | US4728905 High frequency, wide band, superlinear integrable amplifier and its method of fabrication |
| 03/01/1988 | US4728902 Stabilized cascode amplifier |
| 03/01/1988 | US4728901 Power buffer circuit |
| 02/25/1988 | WO1988001452A1 Amplifier for low h.t. voltage and low quiescent current drain |
| 02/24/1988 | EP0256729A2 Amplifier circuit |
| 02/23/1988 | US4727337 Protection circuit for RF power amplifiers |
| 02/23/1988 | US4727336 Wide band low power loss video amplifier |
| 02/23/1988 | CA1233205A1 High frequency energy source |
| 02/17/1988 | EP0255927A2 Switchable tuner-preamplifier |
| 02/16/1988 | US4725790 Broadband DC level shift circuit with feedback |
| 02/16/1988 | US4725789 Circuit arrangement for a low-noise audio frequency source |
| 02/16/1988 | US4725788 Switching amplifier |
| 02/11/1988 | DE3724262A1 Circuit arrangement for capacitive voltage sources having a high output impedance, especially for capacitor microphones |
| 02/10/1988 | EP0255652A2 Power amplifier |
| 02/09/1988 | US4724405 Modulator |
| 02/03/1988 | EP0254873A2 Circuit arrangement with a bridge endstage |
| 02/02/1988 | US4723111 Amplifier arrangement |
| 02/02/1988 | US4723110 Transconductance amplifier |
| 01/28/1988 | WO1988000772A1 Audio amplifier system |
| 01/28/1988 | WO1988000757A1 Correlated sampling amplifier |
| 01/28/1988 | DE3624763A1 Low-noise single-stage transistor preamplifier |
| 01/26/1988 | US4721922 Electric signal amplifiers |
| 01/26/1988 | US4721921 Amplifier having improved gain/bandwidth product |
| 01/26/1988 | US4721919 Class G bridge amplifier with unipolar supplies |
| 01/20/1988 | EP0253105A1 Integrated circuit with improved protective device |