| 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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| 02/26/1986 | EP0172498A1 Electrode for sensing the voltage of a source having a plane contact region |
| 02/26/1986 | EP0172305A1 Mos transistor circuit with breakdown protection |
| 02/25/1986 | US4573022 Semiconductor integrated circuit using vertical PNP transistors |
| 02/25/1986 | US4573021 Circuit output stage arrangement |
| 02/25/1986 | US4573018 Switching amplifier system |
| 02/19/1986 | EP0172042A1 Device for limiting the transmitting power of radio-wave transmitters |
| 02/19/1986 | EP0171843A2 Bipolar transistor RF power amplifier |
| 02/19/1986 | EP0171723A1 Overload protection circuit for a low-frequency amplifier |
| 02/19/1986 | EP0171495A1 MOS transistor circuit with breakdown protection |
| 02/18/1986 | US4571553 Amplifier circuit with distortion cancellation function |
| 02/18/1986 | US4571536 Semiconductor voltage supply circuit having constant output voltage characteristic |
| 02/11/1986 | US4570129 High power high voltage linear amplifier apparatus |
| 02/05/1986 | EP0170391A1 Nonlinearity correction circuit for bandgap reference |
| 02/04/1986 | US4568987 Amplifier input circuit having a figure eight conductive pattern |
| 01/28/1986 | US4567537 Transistor-controlled-load, short-circuit-protected current-supply circuit |
| 01/28/1986 | US4567445 High input impedance low output impedance amplifier |
| 01/28/1986 | US4567443 Low-distortion audio amplifier circuit arrangement |
| 01/28/1986 | CA1199985A1 Circuit for a high impedance signal source |
| 01/28/1986 | CA1199984A1 Differential amplifier having balanced output |
| 01/22/1986 | EP0168552A2 MOS transistor ciruit with breakdown protection |
| 01/21/1986 | US4565971 Parasitic insensitive auto-zeroed operational amplifier |
| 01/15/1986 | EP0168198A2 Cmos operational amplifier |
| 01/15/1986 | EP0168123A2 Low even-order harmonic distortion amplifier and methodtherefor |
| 01/14/1986 | US4564879 Electronic power overload protection circuit |
| 01/14/1986 | US4564816 Predistortion circuit |
| 01/14/1986 | CA1199378A1 High frequency amplifier with phase compensation |
| 01/07/1986 | US4563654 MOS-Transistor amplifier |
| 01/07/1986 | CA1199079A1 High input impedance circuit |
| 01/02/1986 | EP0166626A2 Frequency conversion apparatus |
| 12/31/1985 | US4562408 Amplifier having a high power source noise repression ratio |
| 12/31/1985 | US4562407 Automatic regulation of the output power of an amplifier |
| 12/24/1985 | US4560948 Circuit for increasing voltage gain |
| 12/24/1985 | US4560946 Power amplifier |
| 12/24/1985 | US4560945 Adaptive feedforward cancellation technique that is effective in reducing amplifier harmonic distortion products as well as intermodulation distortion products |
| 12/24/1985 | US4560919 Constant-voltage circuit insensitive to source change |
| 12/19/1985 | WO1985005746A1 Fiber optic communication module |
| 12/17/1985 | US4559502 Multi-stage amplifier with capacitive nesting for frequency compensation |
| 12/10/1985 | US4558288 Emitter-follower type SEPP circuit |
| 12/10/1985 | US4558285 Impedance-matching device for power amplifier circuit |
| 12/10/1985 | US4558239 High impedance amplifier for an IC chip |
| 11/27/1985 | EP0162363A2 Overload protection circuit for a complementary transistor push-pull end stage |
| 11/26/1985 | US4555676 Dual-section amplifier arrangement having a protection circuit |
| 11/26/1985 | US4555675 Device for compensating temperature drifts of the gain of an ultra-high frequency electric signal amplifier |
| 11/26/1985 | US4555674 Power audio-amplifier with automatic adjustment of the bias current absorbed by the final stage |
| 11/26/1985 | US4555672 High-fidelity audio frequency amplifier |
| 11/26/1985 | US4555671 Circuit for driving a signal meter for a receiver |
| 11/26/1985 | US4555668 Gain amplifier |
| 11/26/1985 | CA1197295A1 Nonintegrating receiver |
| 11/21/1985 | EP0161885A2 Amplifier circuit |
| 11/21/1985 | EP0161627A1 Bipolar amplifier circuit |
| 11/21/1985 | EP0161446A2 Semiconductor integrated circuit comprising a protective transistor and a MOS transistor with an LDD structure |
| 11/19/1985 | US4554515 CMOS Operational amplifier |
| 11/19/1985 | US4554514 Predistortion circuit with feedback |
| 11/19/1985 | US4554511 Offset voltage correction network for instantaneous floating point amplifier |
| 11/13/1985 | EP0161215A2 Amplifier with input offset voltage compensation |
| 11/13/1985 | EP0161154A1 Broadband amplifier with double common-mode feedback |
| 11/13/1985 | EP0161067A2 Voltage follower |
| 11/13/1985 | EP0160819A1 Rough overvoltage protection circuit for a repeater or regenerator |
| 11/13/1985 | EP0160694A1 Bias circuit for dynamically switchable low drop current source |
| 11/12/1985 | US4553108 Low noise feedback amplifier |
| 11/12/1985 | US4553106 Output stage for an operational amplifier |
| 11/12/1985 | US4553052 High speed comparator circuit with input-offset compensation function |
| 11/10/1985 | CN85100523A Integratable ultra-linear amplifier with high frequency bandwidth and its manufacturing method |
| 11/06/1985 | EP0160223A2 High frequency amplifier |
| 11/05/1985 | US4551642 Level shifting circuit |
| 10/30/1985 | EP0159654A2 Amplifier circuit |
| 10/29/1985 | US4550291 Noise-free, die area efficient cascode circuit |
| 10/29/1985 | US4550290 FET Power amplifying apparatus |
| 10/24/1985 | WO1985004773A1 Apparatus for increasing the dynamic range in an integrating optoelectric receiver |
| 10/23/1985 | EP0159099A2 Multi-stage amplifier with frequency compensation |
| 10/23/1985 | EP0159079A2 Audio amplifier switch-on control circuit |
| 10/22/1985 | US4549147 Load impedance detector for audio power amplifiers |
| 10/22/1985 | US4549146 Systems and methods for compensating for element nonlinearities in electronic circuits |
| 10/15/1985 | US4547881 ECL Logic circuit with a circuit for dynamically switchable low drop current source |
| 10/15/1985 | US4547746 VSWR Tolerant linear power amplifier |
| 10/15/1985 | US4547744 Integrated amplifier arrangement |
| 10/15/1985 | US4547740 Monitoring device for integrated drive amplifiers |
| 10/09/1985 | EP0157187A1 Amplifier circuit |
| 10/08/1985 | US4545258 Circuit with adjustable amplitude and rolloff frequency characteristics |
| 10/08/1985 | CA1194941A1 Audio amplifier |
| 10/02/1985 | EP0156694A1 Biasing device for a transistor amplification stage, and its use in such a stage |
| 10/02/1985 | EP0156426A1 Amplifier arrangement comprising a protection circuit |
| 10/01/1985 | US4544981 Short circuit protector/controller circuit |
| 09/25/1985 | EP0155717A1 Push-pull amplifier |
| 09/24/1985 | US4543539 Amplifier |
| 09/24/1985 | CA1194153A1 Operational amplifier |
| 09/24/1985 | CA1194152A1 Output amplifier for a transmitting tube |
| 09/24/1985 | CA1194151A1 Circuit arrangement comprising a differential amplifier |
| 09/18/1985 | EP0155124A2 An improved feed forward circuit |
| 09/17/1985 | US4542421 Muting circuit in combination with a tape recorder |
| 09/17/1985 | US4542350 Monolithic integrated circuit device including AC negative feedback type high frequency amplifier circuit |
| 09/17/1985 | US4542349 Digital controlled amplifier |
| 09/17/1985 | US4542348 High efficiency IGFET operational amplifier |
| 09/17/1985 | CA1193774A1 Driver circuit |
| 09/12/1985 | WO1985004043A1 Compensation current generator |
| 09/10/1985 | US4541002 Protective device for a semiconductor integrated circuit including double polysilicon resistor |
| 09/10/1985 | US4540952 Nonintegrating receiver |
| 09/10/1985 | US4540951 Amplifier circuit |
| 09/03/1985 | US4539529 Semiconductor amplifier circuit |
| 09/02/1985 | EP0138901A4 Stabilized microwave power amplifier system. |