| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/26/1991 | WO1991020125A1 Low offset unity gain buffer amplifier |
| 12/25/1991 | CN1057369A Ultra high gain direct coupling amplifying circuit |
| 12/24/1991 | US5075636 Differential amplifier with fast overdrive recovery |
| 12/24/1991 | US5075634 Composite bridge amplifier |
| 12/24/1991 | US5075633 Instrumentation amplifier with single supply capacity and simplified gain equation |
| 12/17/1991 | US5073760 D.c. blocking amplifier |
| 12/17/1991 | US5073759 Adaptable current mirror |
| 12/11/1991 | EP0460573A1 Regulation device of a parameter by a bidirectional structure in current |
| 12/11/1991 | EP0460571A1 Method of control for a switching regulator and corresponding device |
| 12/11/1991 | EP0460564A1 Differential amplifier circuit |
| 12/11/1991 | EP0460273A1 Gain stabilizing amplifier |
| 12/11/1991 | EP0460263A1 Linear CMOS output stage |
| 12/11/1991 | CN2090592U 宽带数据放大器 Broadband data amplifier |
| 12/10/1991 | US5072194 Differential amplifier with capacitive coupling |
| 12/10/1991 | US5072140 Automatic gain control for interferometers and phase sensitive detectors |
| 12/09/1991 | CA2043882A1 Cutting regulator control process, and device for the implementation of said process |
| 12/09/1991 | CA2043881A1 Parameter regulating device using a currentwise bidirectional structure |
| 12/04/1991 | EP0459071A1 Offset and slew-rate equalization and control for a pair of voltage-to-current transducers using the same reference voltage |
| 12/04/1991 | EP0459070A1 High slew-rate operational amplifier with bias controlled by the input differential signal |
| 12/04/1991 | EP0424394A4 Means for reducing damage to jfets from electrostatic discharge events |
| 12/03/1991 | US5070538 Wide band domino effect high voltage regulator |
| 12/03/1991 | US5070309 RF power amplifier having improved amplifier protection |
| 12/03/1991 | US5070308 Working point adjusting circuit for a power amplifier |
| 12/03/1991 | US5070306 High-gain differencial amplifier circuit fabricated from field effect transistors |
| 12/03/1991 | US5070305 Device for converting unbalanced analog electric signals into fully differential signals |
| 12/03/1991 | US5070304 Distributed combiner power amplifier and method |
| 11/28/1991 | WO1991018363A1 Wideband differential voltage-to-current converters |
| 11/27/1991 | EP0458659A2 Semiconductor integrated circuit device for supplying a bias current to DA converters |
| 11/27/1991 | EP0458364A2 Microwave device |
| 11/27/1991 | CN1014949B Charge amplifier circuit |
| 11/26/1991 | US5068624 Amplifier |
| 11/26/1991 | US5068622 CMOS amplifier with offset adaptation |
| 11/26/1991 | US5068621 Compensation method and apparatus for enhancing single-ended to differential conversion |
| 11/26/1991 | US5068552 Voltage follower circuit having improved dynamic range |
| 11/26/1991 | US5068526 Photoelectric conversion device with voltage source means |
| 11/26/1991 | CA2043102A1 Microwave device |
| 11/26/1991 | CA1292557C Video display driver apparatus |
| 11/21/1991 | EP0457160A1 Cascode mirror video amplifier |
| 11/19/1991 | US5066925 Multi push-pull MMIC power amplifier |
| 11/19/1991 | US5066924 Pulse power amplifier |
| 11/19/1991 | US5066923 Linear transmitter training method and apparatus |
| 11/19/1991 | US5066914 Gradient amplifier system with flexible amplifier allocation |
| 11/19/1991 | CA1292289C Temperature compensated bipolar circuits |
| 11/13/1991 | EP0456207A2 Input matching circuit and method for adjusting the same |
| 11/13/1991 | EP0456127A1 Amplifier |
| 11/12/1991 | US5065367 High-gain sense amplifiers array for high-speed read operation |
| 11/12/1991 | US5065351 Stabilization and calibration of precision electronic circuit component |
| 11/12/1991 | US5065300 Class E fixed frequency converter |
| 11/12/1991 | US5065124 DC-40 GHz module interface |
| 11/12/1991 | US5065114 Circuit configuration for an amplifier stage |
| 11/12/1991 | US5065113 Multiple-amplifier control arrangement |
| 11/12/1991 | US5065111 Differential amplifying circuit operable at high speed |
| 11/12/1991 | US5065055 Method and apparatus for high-speed bi-CMOS differential amplifier with controlled output voltage swing |
| 11/12/1991 | US5065043 Biasing circuits for field effect transistors using GaAs FETS |
| 11/10/1991 | WO1992004769A1 Power amplifier with current limiting means |
| 11/10/1991 | CA2064052A1 Power amplifier with current limiting means |
| 11/10/1991 | CA2041729A1 Input matching circuit and method for adjusting the same |
| 11/06/1991 | EP0455570A1 Very wide bandwidth amplifier device for DC to microwave frequencies, particularly in the form of an integrated circuit |
| 11/06/1991 | EP0455485A2 Spatial field power combiner |
| 11/06/1991 | EP0455436A2 Electrical interface circuit |
| 11/06/1991 | EP0455409A1 Solid state RF power amplifier having improved efficiency and reduced distortion |
| 11/06/1991 | EP0454982A1 Differential receiver |
| 11/06/1991 | EP0454972A2 A high gain differential-to single ended amplifier having a tee network feedback loop |
| 11/05/1991 | US5063310 Transistor write current switching circuit for magnetic recording |
| 11/05/1991 | US5063305 Current mirror amplifier circuit |
| 10/31/1991 | WO1991016761A1 A wide-band active rf-circuit |
| 10/30/1991 | EP0454329A1 A circuit for the elimination of spurious response in a radio telephone receiver |
| 10/30/1991 | EP0454298A2 Gradient amplifier system for magnetic resonance imaging |
| 10/30/1991 | EP0454253A1 Current amplifier arrangement |
| 10/30/1991 | EP0453680A2 Three-terminal operational amplifier and applications thereof |
| 10/29/1991 | US5061910 Balun transformers |
| 10/29/1991 | US5061902 Linear amplifier |
| 10/29/1991 | US5061901 Circuit arrangement for increasing the gain-bandwidth product of a cmos amplifier |
| 10/29/1991 | US5061900 Self-zeroing amplifier |
| 10/29/1991 | US5061865 Non-linear transimpedance amplifier |
| 10/23/1991 | EP0453040A1 Power amplifier, in particular for square wave signals |
| 10/23/1991 | EP0453034A1 Distortion compensated differential circuit |
| 10/23/1991 | EP0452917A2 Microwave device |
| 10/23/1991 | EP0452650A2 Electronic gain cell |
| 10/23/1991 | EP0452557A1 Signal level measuring circuit including correction means |
| 10/22/1991 | US5060298 Monolithic double balanced mixer with high third order intercept point employing an active distributed balun |
| 10/22/1991 | US5060294 Dual mode power amplifier for radiotelephone |
| 10/22/1991 | US5059923 Fractional load current detector |
| 10/22/1991 | US5059922 High speed low offset CMOS amplifier with power supply noise isolation |
| 10/22/1991 | US5059920 CMOS amplifier with offset adaptation |
| 10/20/1991 | CA2040795A1 Microwave device |
| 10/17/1991 | WO1991015898A1 Fet amplifying circuits and methods of operation |
| 10/17/1991 | DE4012174A1 Current dividing circuit - sub-divides input current into predetermined output magnitude |
| 10/16/1991 | EP0452192A1 Wideband amplifier stage employing a microwave tube with low frequency dispersivity |
| 10/16/1991 | EP0451857A2 Input matching circuit |
| 10/16/1991 | EP0451378A1 FET amplifying circuits and methods of operation |
| 10/15/1991 | US5057792 Current mirror |
| 10/15/1991 | US5057791 Device and method for bi-directional amplification with a JFET |
| 10/15/1991 | US5057790 High efficiency class A amplifier |
| 10/15/1991 | US5057789 Class AB CMOS amplifier |
| 10/15/1991 | US5057788 2-stage differential amplifier connected in cascade |
| 10/15/1991 | US5057682 Quiescent signal compensated photodetector system for large dynamic range and high linearity |
| 10/14/1991 | CA2039951A1 Wideband microwave tube amplifier stage with low frequency dispersion |
| 10/10/1991 | DE4104074A1 Electronic circuit for connection to inductive devices - uses negative input and output resistance to compensate for DC resistance |
| 10/10/1991 | DE4039524A1 Substrate bias generator arrangement - has dual generators for run=up of power and stable supply states |