Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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01/12/1993 | US5179356 Circuit arrangement for the compensation of the control current of a transistor |
01/12/1993 | US5179355 Slew control in current feedback amplifiers |
01/12/1993 | US5179354 Operational amplifier |
01/12/1993 | US5179353 Power control circuit used for both analog/digital dual mode |
01/12/1993 | US5179352 Amplifier with distortion reducing feedback |
01/07/1993 | WO1993000739A1 Capacitive load driving circuit |
01/07/1993 | EP0521739A1 High-frequency bias supply circuit |
01/07/1993 | EP0521653A2 Gain control amplifier |
01/07/1993 | EP0521215A1 Disk drive read circuit with programmable differentiator delay |
01/07/1993 | DE4121273A1 Amplifier circuitry for optical receiver |
01/05/1993 | US5177453 Gain control amplifier |
01/05/1993 | US5177452 Stabilized circuit of high output power transistor for microwave and milliwave |
01/05/1993 | US5177451 Unity gain amplifier with high slew rate and high bandwidth |
01/05/1993 | US5177450 Cmos power amplifier |
01/05/1993 | US5177449 Radio frequency amplifier circuit |
01/05/1993 | US5177374 Current mode gate drive for power mos transistors |
01/05/1993 | CA1312359C Operational amplifier stages |
01/05/1993 | CA1312358C Transimpedance amplifier with noise reduction and bandwidth compensation |
01/04/1993 | WO1993006632A1 Rf radiation absorbing material |
12/30/1992 | EP0520751A1 Integrating filter circuit |
12/30/1992 | EP0520308A2 Amplifying circuit device |
12/30/1992 | CN1067535A Regulated amplifier circuit |
12/29/1992 | US5175604 Field-effect transistor device |
12/29/1992 | US5175533 TO-CMOS buffers, comparators, folded cascode amplifiers, systems and methods |
12/29/1992 | US5175489 Current-detecting circuit |
12/29/1992 | CA2072266A1 Five-volt tolerant differential receiver |
12/23/1992 | WO1992022937A1 High isolation switch |
12/23/1992 | WO1992022830A1 Windshear radar system with upper and lower elevation radar scans |
12/23/1992 | WO1992022823A1 Modular solid state radar transmitter |
12/23/1992 | EP0519471A1 Amplification circuit |
12/23/1992 | EP0519170A1 Broadband phase shifter and vector modulator |
12/23/1992 | EP0519088A1 Procedure and circuit for limiting an output signal |
12/23/1992 | EP0504370A4 A field emission device employing a layer of single-crystal silicon |
12/23/1992 | EP0306519B1 Current sensing differential amplifier |
12/23/1992 | CN1067348A Color difference signal matrix and buffer circuit for television apparatus |
12/22/1992 | US5173655 Current regulator |
12/22/1992 | CA1311846C Operational amplifier |
12/16/1992 | EP0518673A1 Fast buffer |
12/15/1992 | US5172076 Resonant circuit formed of two amplifiers connected in a loop and multiple resonator circuits constructed therefrom |
12/15/1992 | US5172074 Low noise multi-stage type amplifier |
12/15/1992 | US5172073 Amplifying circuit |
12/15/1992 | US5172019 Bootstrapped FET sampling switch |
12/15/1992 | US5172017 Integrated circuit arrangement including a differential amplifier which generates a constant output voltage over a large temperature range |
12/15/1992 | US5172016 Five-volt tolerant differential receiver |
12/11/1992 | CA2070700A1 Method and circuit arrangement for limiting an output signal |
12/10/1992 | DE4218533A1 Schaltkondensator-schaltkreis mit chopperstabilisiertem verstaerker Switched capacitor circuitry with chopperstabilisiertem verstaerker |
12/10/1992 | DE4210215A1 Low voltage differential amplifier with limited output voltage - has reference voltage comparator for regulation of currents drawn by current mirror transistors in collector circuits |
12/09/1992 | EP0517599A1 Broadband amplifier with automatic control of the gain and the offset |
12/09/1992 | EP0516848A1 Transistor saturation-preventing circuit |
12/09/1992 | CN1066944A Large dynamic differential amplifier |
12/09/1992 | CN1066943A Low voltage power amplifier |
12/08/1992 | US5170337 Low-inductance package for multiple paralleled devices operating at high frequency |
12/08/1992 | US5170229 Junction field effect transistors with injector region |
12/08/1992 | US5170134 Buffer circuit |
12/08/1992 | US5170133 Low-noise amplifier with high input impedance, particularly for microphones |
12/08/1992 | US5170132 Chopper amplifier circuit for the supply of a current proportional to a voltage |
12/08/1992 | US5170081 Ground isolation circuit |
12/08/1992 | CA2070611A1 Automatic gain and offset voltage control wideband amplifier circuit |
12/02/1992 | EP0516423A1 Composite differential amplifier |
12/02/1992 | EP0516134A1 RF power amplifier |
12/02/1992 | EP0515853A1 Protection arrangement for an audio output channel |
12/02/1992 | EP0487688A4 Low offset unity gain buffer amplifier |
12/02/1992 | CN2123839U Circnit amplifier for closed cable television antenna system |
12/02/1992 | CN1066755A Protection arrangement for audio output channel |
12/02/1992 | CN1019347B Offset-voltage-balancing operational amplifier |
12/02/1992 | CN1019339B Regulating circuit |
12/01/1992 | US5168250 Broadband phase shifter and vector modulator |
12/01/1992 | US5168244 Electric circuit fabricated from magneto-resistive elements and active circuit elements |
12/01/1992 | US5168243 Integrated high gain amplifier |
12/01/1992 | US5168242 Active-type broadband power divider |
12/01/1992 | US5168179 Balanced modulator for auto zero networks |
12/01/1992 | US5168153 Integrator and image read device |
12/01/1992 | CA1311039C Optical amplifier with reduced nonlinearity |
11/26/1992 | WO1992021177A1 Drive amplifier for power line communications |
11/25/1992 | EP0515065A1 Bias start-up circuit |
11/25/1992 | EP0514818A1 Programmable amplifier |
11/25/1992 | EP0514655A1 Semiconductor device for TV tuner and TV tuner using the same |
11/25/1992 | EP0500700A4 High fidelity hearing aid amplifier |
11/25/1992 | EP0282529B1 Auto zero circuit for flow meter |
11/25/1992 | CN1066539A Common bias circuit for plurality of discrete ic's each having their own bias circuitry |
11/25/1992 | CA2069123A1 Programmable amplifying device |
11/24/1992 | US5166819 Front end for a broadband optical receiver |
11/24/1992 | US5166640 Two dimensional distributed amplifier having multiple phase shifted outputs |
11/24/1992 | US5166639 High gain mololithic microwave integrated circuit amplifier |
11/24/1992 | US5166638 Differential amplifier having output stage quickly brought into inactive condition by a control signal |
11/24/1992 | US5166636 Dynamic biasing for class a amplifier |
11/24/1992 | US5166635 Digital data line driver |
11/24/1992 | US5166559 Servo circuit having variable gain amplifier and temperature compensation characteristics |
11/24/1992 | US5166553 Current mirror circuit employing depletion mode FETs |
11/24/1992 | CA1310713C Signal feedback amplifier for a cable-tv converter |
11/19/1992 | EP0513856A2 Use of a transmit signal amplifying apparatus, transmit subsystem and method for amplifying transmit signals |
11/18/1992 | CN2122452U Hi-fi vacuum tube power amplifier |
11/17/1992 | US5165054 Circuits for linear conversion between currents and voltages |
11/17/1992 | US5164689 N-way power combiner/divider |
11/17/1992 | US5164683 RF amplifier assembly |
11/17/1992 | US5164681 Voltage-current conversion circuit |
11/17/1992 | US5164679 AC power amplifier having current limit control |
11/17/1992 | US5164658 Current transfer circuit |
11/17/1992 | US5164614 Low power bias voltage generating circuit comprising a current mirror |
11/17/1992 | CA1310376C2 Current gain compensation amplifier |