| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/19/1985 | US4501015 Apparatus for electroacoustic energy conversion |
| 02/19/1985 | US4500849 Low noise power amplifier circuit |
| 02/19/1985 | US4500848 Field effect transistor microwave amplifier |
| 02/19/1985 | US4500846 Circuit for effecting improved slew rate of operational amplifiers |
| 02/19/1985 | US4500844 Ringing signal generator employing delta-modulation power amplification techniques |
| 02/19/1985 | US4500831 Current source |
| 02/13/1985 | EP0133080A1 Two-port impedance network functioning independently of the working frequency, and travelling wave amplifier using the same |
| 02/13/1985 | EP0132760A2 FET power amplifying apparatus |
| 02/12/1985 | US4499431 Driver circuit configuration for the output stage of electronic power amplifiers |
| 02/12/1985 | US4499428 IC Delay conversion operational amplifier |
| 02/06/1985 | EP0037818B1 Current source having saturation protection |
| 02/05/1985 | US4498058 Low input capacitance amplifier |
| 02/05/1985 | US4498057 Power amplifier with power supply switching |
| 02/05/1985 | US4498054 Differential amplifier circuit |
| 02/05/1985 | US4498053 Current amplifier |
| 02/05/1985 | US4498041 Constant current source circuit |
| 02/05/1985 | US4498001 Transimpedance amplifier for optical receivers |
| 02/05/1985 | CA1182167A1 Supply voltage sense amplifier |
| 01/31/1985 | WO1985000478A1 Circuit with adjustable amplitude and rolloff frequency characteristics |
| 01/30/1985 | EP0132380A2 Connector means for transducer/monitor systems |
| 01/29/1985 | US4496911 Integrated amplifier circuit |
| 01/29/1985 | US4496910 Pre-amplifier having improved sonic performance |
| 01/29/1985 | US4496909 Biasing method for improved performance in field effect devices |
| 01/22/1985 | US4495472 Stable fast-settling voltage reference buffer amplifier |
| 01/22/1985 | US4495471 Buffer amplifier |
| 01/22/1985 | US4495470 Offset balancing method and apparatus for a DC amplifier |
| 01/22/1985 | US4495469 Differential amplifier output leading circuit, and intermediate frequency amplifier using same |
| 01/15/1985 | US4494146 Wideband kinescope driver amplifier |
| 01/15/1985 | US4494078 Class BC power amplifier |
| 01/15/1985 | US4494077 Amplifier system switchable between two amplifying operations |
| 01/15/1985 | US4494075 Volume control circuit |
| 01/15/1985 | US4494074 Feedback control |
| 01/15/1985 | US4494016 In a power amplifier circuit |
| 01/15/1985 | US4493811 Preamplifier for a wide range neutron flux monitoring system |
| 01/15/1985 | CA1181140A1 Arrangement for biasing high-frequency active components |
| 01/15/1985 | CA1181139A1 Power amplifier for supplying electric power to a load by switching of power supply voltage |
| 01/15/1985 | CA1181138A1 Transconductance amplifier |
| 01/09/1985 | EP0130664A1 Signal cuber |
| 01/08/1985 | US4492997 Reproducing and amplifying circuit for magnetoresistive head |
| 01/08/1985 | US4492932 Amplifier circuit having a high-impedance input and a low-impedance output |
| 01/08/1985 | US4492931 Infra-red receiver front end |
| 01/08/1985 | US4492929 Operational amplifier having enhanced gain through current feedback |
| 01/08/1985 | US4492882 Integrated circuit for chip op/amp interface |
| 01/08/1985 | CA1180775A1 Power amplifier capable of simultaneous operation in two classes |
| 01/08/1985 | CA1180773A1 Differential amplifier with differential to single- ended conversion function |
| 01/02/1985 | EP0129644A1 Amplifier with a low offset voltage |
| 01/02/1985 | CA1180395A Comparator circuit |
| 01/01/1985 | US4491809 Matching circuit for a pre-amplifier of SHF band television signal receiver |
| 01/01/1985 | US4491804 Bias circuit which is independent of output device voltage characteristics for biasing an amplifier in class AB operation |
| 01/01/1985 | US4491803 Current-limiting mechanism for a precision differential amplifier |
| 12/27/1984 | CA1180066A Circuit for linearly gain controlling a differential amplifier |
| 12/25/1984 | US4490734 Variable impedance circuit employing an RIS field effect transistor |
| 12/25/1984 | US4490686 Differential amplifier with common mode rejection means |
| 12/25/1984 | US4490685 Differential amplifier |
| 12/25/1984 | US4490683 Electronic control switch for a power boost amplifier |
| 12/25/1984 | US4490682 Instrumentation amplifier having automatic offset adjustment |
| 12/25/1984 | US4490629 High voltage circuits in low voltage CMOS process |
| 12/19/1984 | EP0128631A2 Circuit comprising an amplifier and an electronic switch |
| 12/18/1984 | US4489284 Operational amplifier circuit for NMOS chip |
| 12/18/1984 | US4489283 Power amplifier |
| 12/18/1984 | US4489244 Current source circuit |
| 12/12/1984 | EP0127873A1 Circuit arrangement comprising an isolator integral with an admittance element |
| 12/12/1984 | EP0127832A1 Improved differential stage particularly for active filters |
| 12/12/1984 | EP0127743A2 Light detecting circuit |
| 12/11/1984 | US4488121 Method and apparatus for amplifying an analog low-frequency signal by a switching amplifier |
| 12/11/1984 | CA1179408A1 Offset-nulled sample-and-hold amplifier |
| 12/06/1984 | WO1984004857A1 Ringing signal generator |
| 12/04/1984 | US4486720 Protective circuit for power amplifier |
| 12/04/1984 | US4486719 Distributed amplifier |
| 11/28/1984 | EP0126330A2 Enhanced-accuracy semiconductor power amplifier |
| 11/27/1984 | USRE31749 Class B FET amplifier circuit |
| 11/27/1984 | US4485352 For providing a high current output |
| 11/27/1984 | US4485351 Circuit for deriving of signals and counter cycle signals from one sided input signal |
| 11/27/1984 | US4485341 Current limiter circuit |
| 11/27/1984 | US4485313 Low-value current source circuit |
| 11/27/1984 | US4485301 Linear two-terminal integrated circuit photo sensor |
| 11/21/1984 | EP0125512A2 An anti-log power amplifier |
| 11/20/1984 | US4484163 Arrangement for biasing high-frequency active components |
| 11/20/1984 | US4484151 Amplifier circuit |
| 11/20/1984 | US4484148 Current source frequency compensation for a CMOS amplifier |
| 11/20/1984 | US4484147 Bootstrapped shunt feedback amplifier |
| 11/20/1984 | US4484146 Differential amplifier containing a low-pass filter |
| 11/20/1984 | US4484145 Pulse width modulated power amplifier |
| 11/20/1984 | US4484111 Signal amplifier for a signal recording device with magnetic deflection |
| 11/20/1984 | CA1178345A1 Protective circuit for power amplifier |
| 11/14/1984 | EP0125058A1 Amplifier |
| 11/14/1984 | EP0124983A2 Feedback amplifier |
| 11/14/1984 | EP0124765A1 Digital power switching amplifier |
| 11/13/1984 | US4483016 Audio amplifier |
| 11/13/1984 | US4482868 Output stage for a driver circuit having low quiescent output current |
| 11/13/1984 | US4482867 Microwave power transmitter for doppler radar |
| 11/08/1984 | WO1984004421A1 Circuit for effecting improved slew rate of operational amplifiers |
| 11/07/1984 | EP0124423A1 Hyperfrequency power amplifier |
| 11/07/1984 | EP0124315A1 Amplifiers |
| 11/07/1984 | EP0124132A2 Switched-capacitor circuit analog-to-digital converter |
| 11/07/1984 | EP0123997A1 Synchronous generating or amplifying H.F. energy arrangement, especially in the millimeter wave range |
| 11/07/1984 | EP0123874A2 Device for generating a gate bias voltage for field-effect transistors |
| 11/06/1984 | US4481660 Apparatus for driving one or more transducer units |
| 11/06/1984 | US4481625 High speed data bus system |
| 11/06/1984 | US4481482 Class BC power amplifier |