| 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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| 01/20/1988 | EP0253016A1 Charge amplifier circuit |
| 01/20/1988 | EP0252981A1 Gate modulated transimpedance amplifier with buffering for focal plane array |
| 01/19/1988 | US4720685 FET transconductance amplifier with improved linearity and gain |
| 01/14/1988 | WO1988000410A1 Emulated guitar loudspeaker |
| 01/13/1988 | EP0252609A2 Comparator having an offset voltage cancellation circuit |
| 01/13/1988 | EP0252540A2 Circuit for the adjustment of a reference level in a periodic signal |
| 01/13/1988 | EP0252538A1 Entry circuit for a logic analyser probe, and logic analyser probe provided with such a circuit |
| 01/13/1988 | EP0252364A1 Linearising circuit for a high-frequency power amplifier |
| 01/13/1988 | EP0252089A1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier. |
| 01/12/1988 | US4719430 Low voltage class B amplifier with low value decoupling capacitors |
| 01/07/1988 | EP0250434A1 Broad band signal amplifier |
| 01/05/1988 | US4718100 High current demand cable |
| 01/05/1988 | US4717889 Power control system for periodically and selectively energizing or shorting primary windings of transformers for controlling the output voltage across a common secondary winding |
| 01/05/1988 | US4717885 Operational amplifier utilizing FET followers and feed-forward capacitors |
| 01/05/1988 | US4717836 CMOS input level shifting circuit with temperature-compensating n-channel field effect transistor structure |
| 01/05/1988 | US4717830 Correlated sampling amplifier |
| 01/05/1988 | CA1231175A1 Switched-capacitor circuit analog-to-digital converter |
| 12/29/1987 | US4716381 High-current operational amplifier |
| 12/29/1987 | US4716379 Differential amplifier including balanced two terminal series RC network |
| 12/29/1987 | US4716378 Amplifier circuit |
| 12/29/1987 | US4716319 Switched capacitor filter for low voltage applications |
| 12/23/1987 | EP0249729A1 Circuit arrangement for the automatic polarization of a push-pull end stage |
| 12/22/1987 | US4714898 Device for protecting the final stage of a power amplifier against shorting |
| 12/22/1987 | US4714897 Monolithically integratable signal amplifier stage with high output dynamics |
| 12/22/1987 | US4714896 Precision differential amplifier having fast overdrive recovery |
| 12/15/1987 | US4713628 Compensation and biasing of wideband amplifiers |
| 12/15/1987 | US4713625 Circuit for improving power supply rejection in an operational amplifier with frequency compensation |
| 12/15/1987 | US4713624 Power amplifier with modified dynamic response |
| 12/10/1987 | DE3636865A1 Arrangement for linearisation of an output stage |
| 12/09/1987 | EP0248425A2 Emitter with a transistorized push-pull output stage |
| 12/08/1987 | US4712021 Cmos inverter |
| 12/02/1987 | EP0247615A1 Transmitter for short electromagnetic waves |
| 12/02/1987 | EP0247399A1 Circuit arrangement for the overload protection of a push-pull end stage |
| 12/02/1987 | EP0247157A1 Adaptive impedance mismatch detector system |
| 12/02/1987 | EP0149668B1 Lightbeam responsive circuit with electromagnetic noise reduction circuit |
| 12/02/1987 | EP0142520B1 Circuit for effecting improved slew rate of operational amplifiers |
| 12/01/1987 | US4710728 Amplifier having improved gain-bandwidth product |
| 12/01/1987 | US4710727 Nonlinear distortion synthesizer using over-threshold power-function feedback |
| 12/01/1987 | US4710725 Preamplifier for an imaging system |
| 12/01/1987 | CA1229886A2 Method of low noise current amplification |
| 11/24/1987 | US4709216 Operational amplifier with passive current limiting |
| 11/24/1987 | US4709171 Current limiter and method for limiting current |
| 11/19/1987 | EP0245955A2 Amplifying circuit arrangement |
| 11/17/1987 | US4707667 Offset corrected amplifier |
| 11/17/1987 | US4707624 Offset cancellation scheme for a differential reset stabilized latch |
| 11/17/1987 | CA1229412A1 Stabilized microwave power amplifier system |
| 11/17/1987 | CA1229387A1 Power amplifier circuit |
| 11/10/1987 | US4706039 Amplifier arrangement |
| 11/10/1987 | US4706038 Wideband linear Darlington cascode amplifier |
| 11/10/1987 | US4706035 High efficiency amplifier having a bootstrap capacitor |
| 11/10/1987 | CA1229138A1 Amplifier arrangement |
| 11/04/1987 | EP0243898A2 Circuit for series compensation of amplifier non-linearities |
| 11/04/1987 | EP0243792A1 Offset corrected amplifier |
| 11/03/1987 | US4704584 Instantaneous floating point amplifier |
| 11/03/1987 | US4704573 Impedance mismatch detector |
| 10/28/1987 | EP0242889A1 Method for the offset voltage compensation of a control amplifier, and circuit arrangement for carrying out the method |
| 10/28/1987 | EP0242439A2 Wideband amplifier with active high-frequency compensation |
| 10/27/1987 | US4703285 Wideband amplifier with active high-frequency compensation |
| 10/20/1987 | US4701957 Dual mode music instrument preamplifier |
| 10/20/1987 | US4701720 Capacitive feedback to boost amplifier slew rate |
| 10/20/1987 | US4701718 CMOS high gain amplifier utilizing positive feedback |
| 10/20/1987 | US4701717 Operating point-stabilized linearized traveling wave tube amplifier |
| 10/20/1987 | US4701716 Parallel distributed signal amplifiers |
| 10/20/1987 | US4701638 Antisaturation circuit for integrated PNP transistor |
| 10/14/1987 | EP0240618A2 Power buffer circuit |
| 10/13/1987 | US4700151 Modulation system capable of improving a transmission system |
| 10/13/1987 | CA1228129A1 Transistor protection circuit |
| 10/08/1987 | DE3610252A1 Amplifier circuit with feedback |
| 10/07/1987 | EP0240247A2 High-current operational amplifier |
| 10/06/1987 | US4698597 Suppressed-fundamental frequency three-way predistorter |
| 09/29/1987 | US4697153 Cascode auto bias circuit |
| 09/29/1987 | CA1227545A1 Biasing circuit for a field effect transistor |
| 09/23/1987 | EP0237933A2 Semiconductor device having Darlington-connected transistor circuit |
| 09/23/1987 | EP0237694A1 Circuit arrangement for evaluating AC signals obtained from a signal source |
| 09/23/1987 | EP0237605A1 Differential amplifier with NMOS transistors |
| 09/22/1987 | US4695919 Circuit arrangement for protection against surge voltages for a repeater |
| 09/16/1987 | EP0237203A2 Hearing aid circuit |
| 09/16/1987 | EP0237099A1 Wideband distributed amplifier circuit in the ultra-high frequency region |
| 09/15/1987 | US4694258 Method and system of enhancing performance of feedforward amplifiers |
| 09/15/1987 | CA1226909A1 Circuit assembly for temperature-dependent cathode current tracking in traveling-wave tubes |
| 09/09/1987 | EP0236068A2 AM-RF Transmitter with compensation for power supply variations |
| 09/08/1987 | US4692712 Differential impedance neutralization circuit |
| 09/08/1987 | US4692711 Current mirror circuit |
| 09/02/1987 | EP0234806A1 Full differential amplifier circuit and method for producing differential output signals |
| 09/02/1987 | EP0234655A1 Transconductance amplifier |
| 09/02/1987 | EP0109427B1 Current limiter and method for limiting current |
| 09/01/1987 | CA1226340A1 Bias circuit for multifunction bipolar integrated circuits |
| 08/27/1987 | WO1987005171A1 Method for the compensation of the offset voltage of a regulating amplifier and circuit arrangement for implementing such method |
| 08/25/1987 | US4689651 Low voltage clamp |
| 08/25/1987 | US4688323 Method for fabricating vertical MOSFETs |
| 08/19/1987 | EP0232297A1 Amplifier circuit with two in-series connected sections |
| 08/18/1987 | USRE32479 Feedback amplifier or threshold value switch for a current feed differential stage |
| 08/18/1987 | US4688065 MOS type semiconductor device |
| 08/18/1987 | US4688002 Audio power amplifier |
| 08/18/1987 | US4688001 High Efficiency, low distortion amplifier |
| 08/11/1987 | US4686487 Current mirror amplifier |
| 08/11/1987 | US4686387 Biasing circuit for a field effect transistor |
| 08/06/1987 | DE3602908A1 Amplifier circuit for amplifying an alternating voltage |
| 07/28/1987 | US4683591 Proportional power demand audio amplifier control |
| 07/28/1987 | US4683441 Apparatus for establishing the differences between multiple pairs of analog input signals |