| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/10/1992 | US5095285 Monolithically realizable harmonic trapping circuit |
| 03/10/1992 | US5095284 Subthreshold CMOS amplifier with wide input voltage range |
| 03/10/1992 | US5095282 Differential amplifier apparatus |
| 03/10/1992 | US5095268 Tool for tuning microwave circuit within a closed housing |
| 03/10/1992 | US5095220 Circuit configuration for potential triggering of a field effect transistor |
| 03/04/1992 | WO1992004743A1 Microwave multi-stage amplifier |
| 03/04/1992 | EP0473461A2 Amplification and generation of a bipolar signal |
| 03/04/1992 | EP0473370A1 Gain control circuit |
| 03/04/1992 | EP0473365A2 Differential input circuit |
| 03/04/1992 | EP0473299A2 Solid state power amplifier with dynamically adjusted operating point |
| 03/04/1992 | EP0473166A1 Amplifying circuit |
| 03/04/1992 | EP0473165A1 Push-pull power amplifying circuit |
| 03/04/1992 | EP0183701B1 Variable current pressure transducer system |
| 03/03/1992 | US5093667 T/R module with error correction |
| 03/03/1992 | US5093634 Merged current clamp in triple-input transconductor, for use in oscillator |
| 03/03/1992 | US5093631 Gain-controlled broadband amplifier stage |
| 03/03/1992 | CA1296779C Method and apparatus for transferring and injecting rf energy from a generator to a resonant load |
| 03/01/1992 | CA2050215A1 Bipolar signal amplification or generation |
| 02/26/1992 | EP0472406A1 High speed low power DC offsetting circuit |
| 02/26/1992 | EP0472340A1 A compensation method and apparatus for enhancing single ended to differential conversion |
| 02/26/1992 | EP0472202A2 Current mirror type constant current source circuit having less dependence upon supplied voltage |
| 02/26/1992 | EP0472065A1 User-proof post-assembly offset voltage trim |
| 02/25/1992 | US5091919 Transmitter arrangement for digitally modulated signals |
| 02/25/1992 | US5091701 High efficiency cross-coupled folded cascode circuit |
| 02/25/1992 | US5091700 Amplifier with mains voltage reduction |
| 02/25/1992 | US5091663 Mesfet differential amplifier |
| 02/25/1992 | US5091641 High-frequency optoelectric front-end |
| 02/25/1992 | CA1296396C Error amplifier for use with parallel operated autonomous current or voltage regulators using transconductance type power amplifiers |
| 02/19/1992 | EP0471346A1 High frequency power amplifier with high efficiency and low distortion |
| 02/19/1992 | CN2096845U Supper-line transistor audio-frequency power amplifier |
| 02/19/1992 | CN2096844U Symmetry audio-frequency amplifier |
| 02/19/1992 | CN1015588B Amplified circuit |
| 02/18/1992 | US5089791 MMIC-compatible power amplifier |
| 02/18/1992 | US5089790 Field effect transistor amplifier |
| 02/18/1992 | US5089789 Differential amplifier |
| 02/18/1992 | US5089788 Circuit for driving a photo-receiver |
| 02/18/1992 | US5089787 Optically-coupled high frequency amplifier |
| 02/13/1992 | DE4024907A1 Controlled power amplifier with input voltage monitoring - adjusts input attenuating section when input voltage is above given threshold |
| 02/11/1992 | US5087898 Integrated semiconductor active isolator circuit |
| 02/11/1992 | US5087892 Gain stabilizing amplifier |
| 02/11/1992 | US5087891 Current mirror circuit |
| 02/11/1992 | US5087890 Amplifier circuit |
| 02/11/1992 | US5087889 Area efficient cascode driver circuit |
| 02/11/1992 | US5087836 Electronic circuit including a parallel combination of an E-FET and a D-FET |
| 02/11/1992 | CA1295695C Reducing phase modulation of digital amplifiers |
| 02/11/1992 | CA1295687C Rf driver power supply |
| 02/05/1992 | EP0469600A1 Semiconductor integrated circuit containing a circuit having an impedance circuit externally attached thereto |
| 02/05/1992 | EP0469143A1 Push-pull optical receiver. |
| 02/05/1992 | EP0468989A1 Control circuit. |
| 02/05/1992 | EP0248033B1 Multi-level power amplifying circuitry for portable radio transceivers |
| 02/05/1992 | CN1058496A Power amplifier having multiple switched stages |
| 02/04/1992 | US5086474 Amplifier having maximum summed power output from a plurality of devices having limited current sinking capability |
| 02/04/1992 | US5086282 Field effect transistor-bipolar transistor Darlington pair |
| 02/04/1992 | CA1295262C Sum/differential signal processing circuit |
| 01/30/1992 | DE4024002A1 LF amplifying repeater for radio appts. - has operational amplifier in-front of first opto-coupler photodiode providing galvanic separation |
| 01/30/1992 | DE4023435A1 Amplifier circuit for small sensor signals - uses transistor with current mirror in feedback circuit providing output sum current |
| 01/29/1992 | EP0468416A1 Circuit arrangement for amplifying small sensor currents |
| 01/28/1992 | US5084683 Completely differential filter with switched condensers using cmos operational amplifiers with no common-mode feedback |
| 01/28/1992 | US5084639 Low frequency noise canceling photodetector preamplifier useful for computerized tomography |
| 01/28/1992 | CA1294892C Variolosser |
| 01/23/1992 | WO1992001348A1 Circuit for receiving light |
| 01/23/1992 | DE4041354C1 LF voltage amplifying output stage - has control grid of auxiliary valve connected to anode of pentode via capacitor |
| 01/22/1992 | EP0467655A1 Differential amplifying circuit |
| 01/22/1992 | EP0467450A1 Broad band amplifier with separate outputs |
| 01/22/1992 | EP0467270A1 High efficiency RF power amplifier |
| 01/22/1992 | CN2094154U Dynamically-balanced switching audio power amplifier |
| 01/21/1992 | US5083096 High frequency amplifier circuit capable of optimizing a total power consumption |
| 01/21/1992 | US5083095 Plural source follower amplifier |
| 01/21/1992 | US5083094 Selective power combiner using phase shifters |
| 01/21/1992 | US5083051 Output driver circuit with improved output stage biasing |
| 01/21/1992 | CA1294676C Feed forward darlington circuit with reduced npn reverse beta sensitivity |
| 01/15/1992 | EP0466322A2 Power amplifier having multiple switched stages |
| 01/15/1992 | EP0466233A1 Circuit for selective amplification of signals |
| 01/15/1992 | EP0465933A2 Common emitter amplifier operating from a multiplicity of power supplies |
| 01/15/1992 | EP0465668A1 Head amplifier |
| 01/15/1992 | EP0465575A1 Differential amplifier with gain compensation. |
| 01/15/1992 | CN1057932A Efficient audio power amplifier |
| 01/14/1992 | US5081423 Integrator and active filter including integrator with simple phase compensation |
| 01/09/1992 | DE4021290A1 Video signal level amplification and switching circuit - uses current-controlled switches to minimise circuit potential differences and enhance component protection |
| 01/08/1992 | CN1057740A High precision composite amplifier with improved high speed response |
| 01/07/1992 | US5079518 Current-mirror circuit with buffering transistor |
| 01/07/1992 | US5079517 Circuit for DC control of a compressor |
| 01/07/1992 | US5079516 User-proof post-assembly offset voltage trim |
| 01/07/1992 | US5079515 Linearized differential amplifier |
| 01/07/1992 | US5079514 Compensation circuit and method for stabilizing an operational amplifier |
| 01/07/1992 | US5079484 Voltage-regulated supply, notably for microwave tubes |
| 01/02/1992 | EP0463880A1 Amplifier |
| 01/02/1992 | EP0463857A1 Emitter-grounded amplifier circuit with bias circuit |
| 01/02/1992 | EP0463377A1 Low noise multi-stage type amplifier |
| 01/02/1992 | EP0463232A1 Pulse power amplifier |
| 01/02/1992 | EP0463231A1 Pulse power amplifier |
| 01/02/1992 | DE4019979A1 Low-voltage signal amplifying circuit contg. two FETs - includes pre-amplifier with high-level signal feedback from current source connected to drain of output stage |
| 01/01/1992 | CN2092165U 伺服放大器 Servo amplifier |
| 01/01/1992 | CN1057555A Analog signal modulation-demodulation isolation circuit and its applications |
| 12/31/1991 | US5077540 Minimum pulse width switching power amplifier |
| 12/31/1991 | US5077539 Switching amplifier |
| 12/31/1991 | US5077518 Source voltage control circuit |
| 12/31/1991 | US5077489 Comparator circuit implemented in the bipolar and mos technology |
| 12/31/1991 | CA1293813C Switched capacitor arrangement |
| 12/30/1991 | CA2042146A1 High precision composite amplifier with improved high speed response |