| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/21/1995 | US5399992 Amplifier device capable of performing highly efficient operation at low power |
| 03/21/1995 | US5399991 High speed low power op-amp circuit |
| 03/21/1995 | US5399990 Differential amplifier circuit having reduced power supply voltage |
| 03/21/1995 | US5399989 Voltage amplifying source follower circuit |
| 03/21/1995 | US5399988 FT doubler amplifier |
| 03/21/1995 | US5399986 Isolated multi-output power amplifier |
| 03/21/1995 | US5399927 Solid state bypass circuit for RF and microwave active circuits |
| 03/21/1995 | US5399914 High ratio current source |
| 03/21/1995 | US5399906 High-frequency hybrid semiconductor integrated circuit structure including multiple coupling substrate and thermal dissipator |
| 03/16/1995 | WO1995007574A1 Amplifier stage with a db-linear output voltage |
| 03/16/1995 | WO1995007573A1 Method and arrangement for controlling the operation of a high-frequency power amplifier |
| 03/15/1995 | EP0643484A1 Offset reduction in a zero-detecting circuit |
| 03/15/1995 | EP0643479A1 Preamplifier circuit arrangements |
| 03/15/1995 | EP0643478A1 Cascode circuit operable at a low working voltage and having a high output impedance |
| 03/15/1995 | EP0643347A1 Self-biased cascode current mirror having high voltage swing and low power consumption |
| 03/14/1995 | US5398261 Integrated circuit having controller impedances and application to transceivers, in particular for communication between units of a system |
| 03/14/1995 | US5398144 Bias generator for a low voltage differential read amplifier |
| 03/14/1995 | US5398004 HBT direct-coupled low noise wideband microwave amplifier |
| 03/14/1995 | US5398003 Pulse width modulation speaker amplifier |
| 03/14/1995 | US5397935 Bias current supplying circuit |
| 03/09/1995 | DE4400393C1 AF push-pull output stage |
| 03/08/1995 | EP0642219A1 Amplifier |
| 03/08/1995 | EP0642218A1 Circuit with controlled pinch resistances |
| 03/08/1995 | EP0642217A1 Circuit for controlling the bias current of a push-pull output stage |
| 03/08/1995 | EP0641465A1 Zero-voltage complementary switching high efficiency class d amplifier |
| 03/07/1995 | US5396245 Digital to analog converter |
| 03/07/1995 | US5396193 Frequency response-compensated circuit |
| 03/07/1995 | US5396191 High gain differential amplifier capable of reducing offset voltage |
| 03/07/1995 | US5396131 Differential amplifier, comparator and high-speed A/D converter using the same |
| 03/01/1995 | EP0641069A1 Differential amplifier |
| 03/01/1995 | EP0640256A1 Local area network amplifier for twisted pair lines |
| 02/28/1995 | US5394125 Dimensional stabilization of microwave sheet metal bounded cavities |
| 02/28/1995 | US5394124 Dielectric spacing means for microwave sheet metal cavities |
| 02/28/1995 | US5394111 Operational amplifier with junction field effect transistors as input transistor pair |
| 02/28/1995 | US5394080 Universal signal converter using multiple current mirrors |
| 02/28/1995 | US5392784 Virtual right leg drive and augmented right leg drive circuits for common mode voltage reduction in ECG and EEG measurements |
| 02/23/1995 | WO1995005584A2 Two-wire constant current powered transducer |
| 02/22/1995 | EP0639890A1 Directional detector for power level control |
| 02/22/1995 | EP0639889A1 Low voltage fully differential operational amplifiers |
| 02/22/1995 | EP0639307A1 Modulation amplifier for radio transmitters |
| 02/22/1995 | CN1099201A 高频放大器 High-frequency amplifier |
| 02/21/1995 | US5392464 In a data transmission system |
| 02/21/1995 | US5392463 Power amplifier capable of saturation and linear amplification |
| 02/21/1995 | US5392007 Modulator having improved encoding |
| 02/21/1995 | US5392004 Combination amplifier/bias voltage generator |
| 02/21/1995 | US5392003 Wide tuning range operational transconductance amplifiers |
| 02/21/1995 | US5392002 Low voltage bipolar negative impedance converter |
| 02/21/1995 | US5392000 Apparatus and method for frequency compensating an operational amplifier |
| 02/21/1995 | US5391979 Constant current generating circuit for semiconductor devices |
| 02/21/1995 | US5391934 Load sensor driver apparatus |
| 02/21/1995 | US5391933 Driver circuit for generating pulses |
| 02/16/1995 | WO1995005031A1 Feedback sensor circuit |
| 02/16/1995 | WO1995005028A1 Distortion compensation for a pulsewidth-modulated circuit |
| 02/16/1995 | WO1995005027A1 Low-current amplifier |
| 02/15/1995 | EP0638997A1 Servo circuit |
| 02/15/1995 | EP0638996A1 Chopper type differential amplifier using MOS gate capacitors |
| 02/15/1995 | EP0638995A1 A DC coupled amplifier FED by an RF detector |
| 02/15/1995 | EP0638994A1 Transmitter and power amplifier therefor |
| 02/15/1995 | EP0638993A1 Detector amplifier for guarding system |
| 02/15/1995 | EP0638932A2 Semiconductor circuit device capable of reducing influence of a parasitic capacitor |
| 02/15/1995 | CN1098828A 半导体功率放大器集成电路 Semiconductor power amplifier integrated circuit |
| 02/14/1995 | US5389896 HBT monolithic variable gain amplifier with bias compensation and buffering |
| 02/14/1995 | US5389895 Transconductance amplifier |
| 02/14/1995 | US5389894 Power amplifier having high output voltage swing and high output drive current |
| 02/14/1995 | US5389893 Circuit for a controllable amplifier |
| 02/14/1995 | US5389892 Input stages for high voltage operational amplifier |
| 02/14/1995 | US5389891 Semiconductor device comprising a two-stage differential amplifier |
| 02/14/1995 | US5389890 Combiners for R.F. power amplifiers |
| 02/14/1995 | US5389840 Complementary analog multiplier circuits with differential ground referenced outputs and switching capability |
| 02/14/1995 | US5389829 Output limiter for class-D BICMOS hearing aid output amplifier |
| 02/14/1995 | US5389778 Photoelectric conversion circuit having a tuning circuit and changeover switches |
| 02/14/1995 | CA2048234C Audio dosage control system |
| 02/12/1995 | CA2129790A1 Detector-amplifier for monitoring system |
| 02/09/1995 | WO1995004401A1 Filter circuit |
| 02/08/1995 | EP0637790A2 Reference potential generating circuit utilizing a difference in threshold between a pair of MOS transistors |
| 02/08/1995 | CN1098574A Communication apparatus utilizing high power amplifier |
| 02/08/1995 | CN1098539A Sound system gain and equalization circuit |
| 02/07/1995 | US5387880 Compact monolithic wide band HEMT low noise amplifiers with regulated self-bias |
| 02/07/1995 | US5387878 Amplification circuit |
| 02/07/1995 | US5387877 Voltage controlled attenuator for speakerphones |
| 02/07/1995 | US5387876 High efficiency amplifier with reduced switching distortion |
| 02/07/1995 | US5387875 For generating a pulse form drive signal |
| 02/02/1995 | WO1995003651A1 Voltage comparator with controlled output current proportional to difference voltage |
| 02/01/1995 | EP0637131A1 Microwave amplifier having a variable-impedance impedance matching circuit |
| 02/01/1995 | EP0637128A1 Voltage-current converter |
| 02/01/1995 | EP0636891A2 Phase difference detecting method, circuit and apparatus |
| 02/01/1995 | CN1027564C Capacitive coupled isolated amplifier |
| 01/31/1995 | US5386328 Current mirror based write driver |
| 01/31/1995 | US5386207 Comparator with application in data communication |
| 01/31/1995 | US5386200 IGFET current mirror amplifiers with nested-cascode input and output stages |
| 01/31/1995 | US5386198 Linear amplifier control |
| 01/31/1995 | US5386160 Trim correction circuit with temperature coefficient compensation |
| 01/31/1995 | US5386148 Signal conditioning apparatus |
| 01/31/1995 | US5386130 Semiconductor device comprising a broadband and high-gain monolithic integrated circuit for a distributed amplifier |
| 01/31/1995 | US5386109 Pre-amplifier for optical receiving and optical receiver using the same |
| 01/26/1995 | WO1995002926A1 Transceiver for transmitting and receiving stair-stepped sinusoidal waveforms |
| 01/26/1995 | WO1995002923A1 Method and apparatus for calibrating a gain control circuit |
| 01/26/1995 | DE4324198A1 Radiofrequency power amplifier circuit |
| 01/26/1995 | CA2167060A1 Method and apparatus for calibrating a gain control circuit |
| 01/25/1995 | EP0635934A2 Constant-amplitude wave combination type amplifier |