| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/06/1993 | US5200710 Current mirror amplifier circuit and method of driving the same |
| 04/06/1993 | US5200709 Audio amplifying circuit |
| 04/06/1993 | US5200708 Apparatus for the virtual expansion of power supply capacity |
| 04/06/1993 | US5200707 Amplifier with multiple switched stages and noise suppression |
| 04/06/1993 | US5200654 Trim correction circuit with temperature coefficient compensation |
| 04/01/1993 | WO1993006655A1 Active biasing control for class-ab cmos operational amplifiers |
| 04/01/1993 | CA2119357A1 Active biasing control for class-ab cmos operational amplifiers |
| 03/31/1993 | EP0534804A1 Class-D BICMOS hearing aid output amplifier |
| 03/31/1993 | EP0534575A2 Voltage source amplifier |
| 03/31/1993 | EP0534134A1 Amplifier circuit with bipolar and field effect transistors |
| 03/31/1993 | EP0534007A1 Differential amplifier arrangement |
| 03/31/1993 | CN1020227C Efficient audio power amplifier |
| 03/30/1993 | US5198782 Low distortion amplifier output stage for dac |
| 03/30/1993 | US5198781 Custom integrated circuit composed of a combination of analog circuit cells designed to operate in current mode |
| 03/30/1993 | US5198780 Adjustable gain differential amplifier |
| 03/30/1993 | US5198658 Transimpedance amplifier-input stage for an optical receiver |
| 03/25/1993 | DE4131782A1 Low-loss driver circuit for wideband power amplifier - uses opto-couplers between preamplifier and emitter-coupled drive stage followed by current-amplifying operational amplifier |
| 03/24/1993 | EP0533230A1 Differential amplifier and mixer oscillator incorporating the same |
| 03/24/1993 | EP0532868A1 Current controlled push-pull amplifier with feedback for the transmission of wide band AC signals |
| 03/24/1993 | EP0316405B1 Envelope amplifier |
| 03/23/1993 | US5196807 Amplifying circuit |
| 03/23/1993 | US5196805 Distributed differential amplifier arrangement |
| 03/23/1993 | US5196733 Crosstalk-resistant multi-input to single output analog switching device |
| 03/18/1993 | WO1993005572A1 Power amplifier with quiescent current control |
| 03/18/1993 | WO1993005571A1 Push-pull optical receiver having gain control |
| 03/18/1993 | DE4130512A1 Signal gain and offset compensation appts. for electrical measurement signals, esp. for engine induction - uses operational amplifier with variable reference voltage and variable resistance to earth |
| 03/16/1993 | US5194826 Circuitry arrangement for the elimination of spurious response in a radio telephone receiver |
| 03/16/1993 | US5194824 5V Rail-rail unity gain amplifier driving high capacitive load |
| 03/16/1993 | US5194821 High efficiency power audio amplifiers comprising two amplifier with a single feed |
| 03/16/1993 | US5193547 Universal connector means for transducer/monitor systems |
| 03/11/1993 | DE3348378C2 Variable temp. compensating circuit |
| 03/10/1993 | EP0531163A1 Audio amplifier |
| 03/10/1993 | EP0530500A1 Current mirror circuit |
| 03/10/1993 | EP0530415A1 Differential input stage having improved common mode rejection |
| 03/10/1993 | EP0441805B1 Current regulator |
| 03/09/1993 | US5192920 High-sensitivity, low-noise transistor amplifier |
| 03/03/1993 | EP0529946A1 Combining technique for a multistage, parallel amplifier |
| 03/03/1993 | EP0529901A1 Dual feedback control for a high-efficiency class-D power amplifier circuit |
| 03/03/1993 | EP0529176A1 Method and apparatus for measuring small quantities of light |
| 03/03/1993 | EP0529158A1 Controlling sound dosage |
| 03/03/1993 | EP0529119A1 Monolithic integrated amplifier with digital gain control |
| 03/03/1993 | EP0528940A1 Wideband differential voltage-to-current converters |
| 03/02/1993 | US5191338 Wideband transmission-mode FET linearizer |
| 03/02/1993 | US5191300 Local area network amplifier for twisted pair lines |
| 03/02/1993 | US5191299 Radial power combining of field-effect transistor-based amplifiers |
| 03/02/1993 | US5191298 Isolation amplifier circuit |
| 03/02/1993 | US5191297 Transconductance amplifier having sensfets which drive a load with linearly proportional current |
| 02/27/1993 | CA2076724A1 Process and apparatus for measuring small quantities of light |
| 02/24/1993 | EP0528659A1 Impedance multiplier |
| 02/24/1993 | EP0528413A2 Gain control circuit and semiconductor device |
| 02/23/1993 | US5189347 Video circuit for driving a cathode ray tube |
| 02/23/1993 | US5189318 Analog signal extracting circuit |
| 02/23/1993 | US5189307 Isolated current mirror with optical insulator generating feedback signal |
| 02/23/1993 | US5189296 Optical receiver having a low capacitance integrated photodetector |
| 02/18/1993 | WO1993003541A1 Mesfet power amplifier and its power supply, particularly for amplifying microwave signals on a satellite |
| 02/17/1993 | CN1069152A Slew rate speed-up circuit |
| 02/17/1993 | CA2072396A1 Dual feedback control for a high-efficiency class-d power amplifier circuit |
| 02/16/1993 | US5187580 High power switch-mode radio frequency amplifier method and apparatus |
| 02/16/1993 | US5187473 Bipolar signal amplification or generation |
| 02/16/1993 | US5187448 Differential amplifier with common-mode stability enhancement |
| 02/16/1993 | US5187447 Combiner/divider networks |
| 02/16/1993 | US5187446 Feedback isolation amplifier |
| 02/16/1993 | US5187110 Making high frequency amplifiers |
| 02/09/1993 | US5185582 Differential amplifier, particularly of the cascode type |
| 02/09/1993 | CA1313575C Broadband, high speed video amplifier |
| 02/03/1993 | EP0526423A1 An integrated instrumentation amplifier with differential input and a single power supply, with integrated frequency-compensating capacitance |
| 02/03/1993 | EP0526110A2 Driving circuit apparatus for CRT |
| 02/03/1993 | EP0525869A1 Bootstrap circuit for driving a power MOS transistor in pull-up mode |
| 02/03/1993 | EP0525777A1 Speaker driving circuit |
| 02/03/1993 | EP0525656A1 An amplifier, particularly an integrated amplifier |
| 02/03/1993 | EP0525421A2 Circuit arrangement for converting a voltage drop tapped from a test object from a predetermined input voltage range to a desired output voltage range |
| 02/03/1993 | EP0504308A4 Fiber optic transimpedance receiver |
| 02/03/1993 | CN1068694A Multi-channel sound frequency power amplifying ic |
| 02/02/1993 | US5184090 Head amplifier |
| 02/02/1993 | US5184089 Differential amplifier having output current limiting |
| 02/02/1993 | US5184087 Transconductance amplifier using parasitic bipolar transistors to embody a constant voltage source |
| 02/02/1993 | US5184086 Differential amplifier |
| 01/27/1993 | EP0524772A2 Microwave power amplifiers |
| 01/27/1993 | CN1068466A Crosstalk-resistant multi-input to single output analog switching device |
| 01/26/1993 | US5182527 Power amplifying apparatus for wireless transmitter |
| 01/26/1993 | US5182526 Differential input amplifier stage with frequency compensation |
| 01/26/1993 | US5182525 CMOS transconductance amplifier with floating operating point |
| 01/26/1993 | US5182477 Bipolar tunable transconductance element |
| 01/26/1993 | US5182476 Offset cancellation circuit and method of reducing pulse pairing |
| 01/24/1993 | CA2073790A1 Microwave power amplifiers |
| 01/21/1993 | WO1993001687A1 Tone receiver comprising a switch capacitor zero crossing detector |
| 01/21/1993 | WO1993001600A1 Operational amplifier with self-contained sample and hold and auto zero |
| 01/21/1993 | DE4123437A1 Chain amplifier with FETs contg. gate and drain lines - has active gate and drain loads, and source inductance with negative feedback to amplifying transistor |
| 01/20/1993 | EP0523893A2 Termination circuit in an ECL array of a row bias generator |
| 01/20/1993 | EP0523592A1 Voltage follower circuit |
| 01/20/1993 | EP0523380A2 Comparator circuit including at least one differential amplifier |
| 01/20/1993 | EP0523271A1 Circuit arrangement for antenna coupling |
| 01/20/1993 | CN1068225A Quasi-class a bias circuit of complementary push-pull output device |
| 01/19/1993 | US5180989 Wideband amplifier |
| 01/19/1993 | US5180966 Current mirror type constant current source circuit having less dependence upon supplied voltage |
| 01/19/1993 | US5180932 Current mode multiplexed sample and hold circuit |
| 01/19/1993 | CA1312928C High-gain ic amplifier |
| 01/13/1993 | EP0522786A1 Dynamic biasing for class A amplifier |
| 01/13/1993 | CN1067998A Dynamic balance switch type audio power amplifier |
| 01/12/1993 | US5179379 Analog to digital convertor with drift compensation |