| 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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| 03/11/1993 | DE3348378C2 Variable temp. compensating circuit |
| 03/10/1993 | EP0531163A1 Audio amplifier |
| 03/09/1993 | US5193224 Adaptive phase control for a power amplifier predistorter |
| 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 | EP0529874A1 Vector locked loop |
| 03/03/1993 | EP0529448A2 Field effect transistor protection circuit |
| 03/03/1993 | EP0529119A1 Monolithic integrated amplifier with digital gain control |
| 03/03/1993 | EP0528940A1 Wideband differential voltage-to-current converters |
| 03/03/1993 | EP0520062A4 A method and apparatus for optimizing the performance of a power amplifier circuit |
| 03/03/1993 | CN1020027C Lateral PNP Transistor using latch voltage of NPN transistor |
| 03/02/1993 | US5191597 Method of compensating for non-linearities in an end amplifier incorporated in a radio transmitter |
| 03/02/1993 | US5191338 Wideband transmission-mode FET linearizer |
| 03/02/1993 | US5191298 Isolation amplifier circuit |
| 03/02/1993 | US5191297 Transconductance amplifier having sensfets which drive a load with linearly proportional current |
| 03/02/1993 | US5191235 Semiconductor integrated circuit device having substrate potential detection circuit |
| 02/18/1993 | WO1993003542A1 Amplifier |
| 02/18/1993 | WO1993003541A1 Mesfet power amplifier and its power supply, particularly for amplifying microwave signals on a satellite |
| 02/17/1993 | EP0527516A2 Current limiting circuit |
| 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 | US5187448 Differential amplifier with common-mode stability enhancement |
| 02/16/1993 | US5187446 Feedback isolation amplifier |
| 02/16/1993 | US5187395 BIMOS voltage bias with low temperature coefficient |
| 02/10/1993 | EP0526557A1 Apparatus and method for reducing distortion in amplification. |
| 02/10/1993 | CN1068921A Linear amplifier |
| 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 | EP0526241A2 Linear compensating circuit |
| 02/03/1993 | EP0525873A1 Amplifier arrangement |
| 02/02/1993 | US5184090 Head amplifier |
| 02/02/1993 | US5184089 Differential amplifier having output current limiting |
| 02/02/1993 | US5184086 Differential amplifier |
| 02/02/1993 | US5184036 Method of limiting output current from an interface drive circuit |
| 01/27/1993 | EP0524772A2 Microwave power amplifiers |
| 01/27/1993 | EP0524758A2 Distortion compensation for analog optical systems |
| 01/27/1993 | EP0524189A1 Optically compensated bipolar transistor |
| 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 | US5182524 Method and apparatus for stabilizing pulsed microwave amplifiers |
| 01/26/1993 | US5182477 Bipolar tunable transconductance element |
| 01/24/1993 | CA2073790A1 Microwave power amplifiers |
| 01/21/1993 | WO1993001600A1 Operational amplifier with self-contained sample and hold and auto zero |
| 01/20/1993 | EP0524008A1 Transmitter with nonlinearity correction circuits |
| 01/20/1993 | CN1068225A Quasi-class a bias circuit of complementary push-pull output device |
| 01/19/1993 | US5180989 Wideband amplifier |
| 01/19/1993 | CA1312928C High-gain ic amplifier |
| 01/13/1993 | EP0522706A2 Amplification systems |
| 01/13/1993 | EP0522525A1 Process for compensation of AM/PM distortion of a transmitter by modulation of the local oscillator phase, and associated compensation circuit |
| 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 | US5179353 Power control circuit used for both analog/digital dual mode |
| 01/12/1993 | US5179352 Amplifier with distortion reducing feedback |
| 01/07/1993 | EP0521653A2 Gain control amplifier |
| 01/06/1993 | CN1067751A Circuit for generation internal supply voltage |
| 01/05/1993 | US5177454 Amplifier circuit with temperature compensation |
| 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 | CA1312359C Operational amplifier stages |
| 01/05/1993 | CA1312358C Transimpedance amplifier with noise reduction and bandwidth compensation |
| 12/30/1992 | EP0520432A2 Signal processing circuit and system for detection of absolute value |
| 12/30/1992 | EP0520308A2 Amplifying circuit device |
| 12/30/1992 | EP0520062A1 A method and apparatus for optimizing the performance of a power amplifier circuit |
| 12/30/1992 | CN1067537A Power amplifier saturation detection and correction method and apparatus |
| 12/29/1992 | US5175879 Linear amplifier with feedback path and phase error compensation |
| 12/29/1992 | US5175877 Apparatus and method for generating an amplitude modulated rf signal |
| 12/29/1992 | US5175871 Power amplifier for a cellular telephone |
| 12/29/1992 | US5175489 Current-detecting circuit |
| 12/24/1992 | DE4120029A1 Schaltung zur verringerung von intermodulation beim einsatz von halbleiterlasern fuer die optische nachrichtenuebertragungstechnik Circuit designed to reduce intermodulation in the use of semiconductor lasers for optical nachrichtenuebertragungstechnik |
| 12/23/1992 | WO1992022964A1 Circuit for reducing intermodulation on the use of semiconductor lasers for optical information transmission |
| 12/23/1992 | EP0519471A1 Amplification circuit |
| 12/23/1992 | EP0519170A1 Broadband phase shifter and vector modulator |
| 12/16/1992 | EP0518673A1 Fast buffer |
| 12/16/1992 | EP0321455B1 Emulated guitar loudspeaker |
| 12/15/1992 | US5172215 Overcurrent-limiting type semiconductor device |
| 12/15/1992 | US5172073 Amplifying circuit |
| 12/15/1992 | US5172072 High efficiency harmonic injection power amplifier |
| 12/15/1992 | US5172071 Linearized output control of a nonlinear amplifier |
| 12/15/1992 | US5172068 Third-order predistortion linearization circuit |
| 12/15/1992 | US5172017 Integrated circuit arrangement including a differential amplifier which generates a constant output voltage over a large temperature range |
| 12/10/1992 | WO1992022131A1 Class ab operational amplifier |
| 12/10/1992 | DE4118151A1 Non=linear distortion circuit with emitter follower transistor - employs current mirror transistor pair as controllable current source for compensation of input AC component |
| 12/09/1992 | EP0516848A1 Transistor saturation-preventing circuit |
| 12/09/1992 | CN1066942A Method and apparatus for optimizing performance of power amplifier circuit |
| 12/08/1992 | US5170240 Input protection structure for integrated circuits |
| 12/08/1992 | US5170134 Buffer circuit |
| 12/04/1992 | WO1992022134A1 Power amplifier |
| 12/04/1992 | WO1992022133A1 Power amplifier saturation detection and correction method and apparatus |
| 12/02/1992 | EP0516219A1 Amplifier arrangement |
| 12/02/1992 | EP0516134A1 RF power amplifier |
| 12/02/1992 | EP0515853A1 Protection arrangement for an audio output channel |
| 12/02/1992 | EP0515662A1 Feed forward distortion minimization circuit. |
| 12/02/1992 | EP0487688A4 Low offset unity gain buffer amplifier |
| 12/02/1992 | CN1066755A Protection arrangement for audio output channel |
| 12/02/1992 | CN1019347B Offset-voltage-balancing operational amplifier |
| 12/01/1992 | US5168397 Magnetic reproducing head amplifier |
| 12/01/1992 | US5168250 Broadband phase shifter and vector modulator |