| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 07/25/1990 | EP0379202A2 Phase inverter and push-pull amplifier using the same |
| 07/25/1990 | CN1044195A Power amplification circuit of large power tube without overloading |
| 07/18/1990 | EP0378470A2 Analog D. C. to one MHZ information channel |
| 07/18/1990 | EP0378452A1 Current mirror circuits |
| 07/18/1990 | EP0377978A2 A PLL control apparatus |
| 07/17/1990 | US4942368 Signal feedback amplifier for a cable-TV converter |
| 07/17/1990 | CA2007635A1 Transistor circuit |
| 07/12/1990 | DE3900562A1 Monolithic circuit arrangement for amplifying and evaluating pulsating light signals with integrated light sensor |
| 07/11/1990 | EP0376953A1 Electronic devices and signal comparator using same. |
| 07/10/1990 | US4940981 Dual analog-to-digital converter with single successive approximation register |
| 07/10/1990 | US4940949 High efficiency high isolation amplifier |
| 07/04/1990 | EP0376471A1 Low distortion current mirror |
| 07/04/1990 | EP0375998A2 Low power transient suppressor circuit |
| 07/03/1990 | US4939480 Method and apparatus for amplifying signals |
| 07/03/1990 | US4939479 Audio amplifier |
| 07/03/1990 | US4939478 Asymmetrical differential amplifier as level converter |
| 07/03/1990 | US4939477 Output circuit having a terminal used for a plurality of signals |
| 07/03/1990 | US4939476 Laser Rangefinder receiver preamplifier |
| 07/03/1990 | US4939475 Circuit arrangement comprising an amplifier connected to an opto-electrical transducer |
| 07/03/1990 | CA1271233A1 Driver circuit |
| 06/28/1990 | WO1990007231A1 Improved variolosser |
| 06/27/1990 | EP0375124A1 CMOS comparator bias voltage generator |
| 06/27/1990 | EP0375017A2 Completely differential filter with switched condensers using CMOS operational amplifiers with no common-mode feedback |
| 06/27/1990 | EP0374744A2 Microwave integrated circuit |
| 06/27/1990 | EP0374543A2 Wide bandwidth push-pull amplifier |
| 06/26/1990 | US4937534 Band-pass amplifier |
| 06/26/1990 | US4937516 Balanced voltage-current converter and double-balanced mixer circuit comprising such a converter |
| 06/26/1990 | US4937515 Low supply voltage current mirror circuit |
| 06/26/1990 | US4937478 Circuit configuration for low-distortion signal switching |
| 06/22/1990 | CA2005182A1 Microwave integrated circuit |
| 06/20/1990 | EP0373853A2 Amplifier output stage |
| 06/20/1990 | EP0373631A2 MOS transistor and differential amplifier circuit with low offset |
| 06/20/1990 | CN1043234A Single input to differential output amplifier |
| 06/19/1990 | US4935704 Low distortion linear amplifier with high-level output |
| 06/19/1990 | US4935703 Low bias, high slew rate operational amplifier |
| 06/19/1990 | US4935702 Subthreshold CMOS amplifier with offset adaptation |
| 06/17/1990 | CA2005618A1 Semiconductor device |
| 06/14/1990 | WO1990006626A1 Single input to differential output amplifier |
| 06/13/1990 | EP0373062A1 Control circuit for the rest potential of a charge, and differential comparator comprising such a control circuit |
| 06/13/1990 | EP0373030A1 Regulated voltage supply for ultra-high frequency tubes |
| 06/13/1990 | EP0372648A2 Circuit arrangement for processing analogue electrical signals |
| 06/13/1990 | EP0372643A1 Integrated semiconductor circuit with a power amplifier stage for ultra-high frequency |
| 06/12/1990 | US4933648 Current mirror employing controlled bypass circuit |
| 06/12/1990 | US4933645 Amplifier having a constant-current bias circuit |
| 06/12/1990 | US4933644 Common-mode feedback bias generator for operational amplifiers |
| 06/12/1990 | US4933643 Operational amplifier having improved digitally adjusted null offset |
| 06/12/1990 | US4933626 Methods and apparatus for controlling power amplifiers driving highly inductive loads |
| 06/12/1990 | US4933578 Voltage follower circuit |
| 06/09/1990 | CA2004926A1 Circuit for the automatic control of the off-load voltage of a load, and differential comparator including this automatic control circuit |
| 06/07/1990 | DE3840854A1 Wide-band amplifier |
| 06/05/1990 | US4931747 Microwave power amplifier |
| 06/05/1990 | US4931746 Controllable broadband amplifier and mixer which includes the amplifier |
| 06/05/1990 | US4931666 Darlington-connected semiconductor device |
| 06/01/1990 | CA2000367A1 Single input to differential output amplifier |
| 05/30/1990 | EP0370725A2 Amplifier circuit using feedback load |
| 05/30/1990 | EP0370608A1 Thermally stabilized optical preamplifier |
| 05/29/1990 | US4929913 Capacitative feedback transimpedance amplifier |
| 05/29/1990 | US4929912 Current mirror circuit, and video output amplifier circuit provided with the current mirror circuit |
| 05/29/1990 | US4929910 Low current amplifier with controlled hysteresis |
| 05/29/1990 | US4929909 Differential amplifier with gain compensation |
| 05/29/1990 | US4929907 For high output swing in pulse generators |
| 05/23/1990 | EP0369716A2 Amplifying circuit |
| 05/23/1990 | EP0369011A1 Multiphase multiplier |
| 05/23/1990 | DE3839241A1 Amplifier circuit having an amplifier transistor |
| 05/23/1990 | CN1042459A Multifunction double gate complementary switch amplifier integrated block |
| 05/22/1990 | US4928073 DC amplifier |
| 05/22/1990 | US4928072 Amplifier having suppressed spurious frequency components |
| 05/17/1990 | WO1990005330A1 Current regulator |
| 05/16/1990 | EP0368510A1 Current amplifier |
| 05/16/1990 | EP0368379A1 Transistor circuit with base-current compensation |
| 05/16/1990 | EP0368329A2 Self equalizing multi-stage radio frequency power amplifier |
| 05/15/1990 | US4926138 Fully-differential reference voltage source |
| 05/15/1990 | US4926137 Transistor amplifier for outputting a voltage which is higher than a breakdown voltage of the transistor |
| 05/15/1990 | US4926136 Power amplifier combiner for improving linearity of an output |
| 05/09/1990 | EP0367707A2 A circuit arrangement for adjusting offset voltages associates with operational amplifiers |
| 05/09/1990 | EP0367330A1 Linear-gain amplifier arrangement |
| 05/08/1990 | US4924234 Plural level beam-forming network |
| 05/08/1990 | US4924212 Temperature threshold detection circuit |
| 05/08/1990 | US4924194 RF power amplifier |
| 05/08/1990 | CA1268826A1 Output amplifier |
| 05/03/1990 | WO1990004886A1 Multiple rf signal amplification method and apparatus |
| 05/02/1990 | EP0366453A2 Variable gain current-to-voltage amplifier with gain independent test mode operation |
| 05/02/1990 | EP0366253A1 Noise immune current mirror circuit |
| 05/02/1990 | EP0366130A2 Linear deflection amplifier with energy recovery |
| 05/01/1990 | US4922208 Output stage for an operational amplifier |
| 05/01/1990 | US4922207 So-called bridge audio amplifier |
| 05/01/1990 | US4922160 Impedance load driving circuit |
| 05/01/1990 | US4922129 Feed forward darlington circuit with reduced NPN reverse beta sensitivity |
| 05/01/1990 | US4921814 Method of producing an MMIC |
| 04/25/1990 | EP0365291A2 Transistor amplifier for high slew rates and capative loads |
| 04/25/1990 | EP0364930A2 Negative impedance driving apparatus having temperature compensation circuit |
| 04/24/1990 | US4920321 Amplifier circuit arrangement |
| 04/24/1990 | US4920309 Error amplifier for use with parallel operated autonomous current or voltage regulators using transconductance type power amplifiers |
| 04/24/1990 | CA1268224A1 Microwave apparatus |
| 04/19/1990 | WO1990004284A1 Bias current compensation for bipolar input stages |
| 04/18/1990 | EP0363715A2 Integrated-voltage multiplier circuit for a low-voltage power supply |
| 04/17/1990 | US4918564 Load driver with delayed turn-off |
| 04/17/1990 | US4918401 Step adjustable distributed amplifier network structure |
| 04/17/1990 | US4918400 Amplifier circuit |
| 04/17/1990 | US4918399 Common mode sensing and control in balanced amplifier chains |