| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 07/19/1989 | EP0324525A2 Amplifier circuit |
| 07/19/1989 | EP0324273A2 Wideband linearized emitter feedback amplifier |
| 07/19/1989 | EP0324205A2 Amplifier circuit arrangement |
| 07/19/1989 | CN2041465U Duplex feed back amplifying module |
| 07/19/1989 | CN1004853B Differential amplifiers with junction field effect transistor resistance |
| 07/18/1989 | US4849707 High-precision amplification circuit of small size and low power consumption for integrated circuits |
| 07/13/1989 | DE3743766A1 Optical receiver |
| 07/13/1989 | DE3743765A1 Optical receiver |
| 07/11/1989 | US4847568 Microwave apparatus |
| 07/11/1989 | US4847567 Monolithically integrable, amplitude-controllable oscillator amplifier circuit |
| 07/11/1989 | US4847566 CMOS Amplifier having enhanced current sinking and capacitance load drive |
| 07/11/1989 | US4847565 Solid state electromagnetic wave amplifier |
| 07/11/1989 | US4847523 Lock-in test amplifier |
| 07/11/1989 | US4847519 Integrated, high speed, zero hold current and delay compensated charge pump |
| 07/11/1989 | US4847515 Static relay and application thereof to a bipolar inverter or to a load in which a current flows in a random direction |
| 07/11/1989 | CA1257346A1 Differential amplifier with current steering to enhance slew rate |
| 07/11/1989 | CA1257328A1 Current source with adjustable temperature coefficient |
| 07/05/1989 | EP0323059A2 Amplifier circuit |
| 07/05/1989 | EP0322519A2 Operational amplifier utilizing trimmable current sources |
| 07/04/1989 | US4845672 Memory circuit with active load |
| 07/04/1989 | US4845445 Amplifier |
| 07/04/1989 | US4845441 Amplifier circuit with bipolar transistors |
| 07/04/1989 | US4845440 Distributed amplifier circuits |
| 06/28/1989 | EP0321701A2 An audio amplifier having a low-noise input stage |
| 06/27/1989 | US4843344 High voltage amplifier |
| 06/27/1989 | US4843342 Differential amplifier with input bias current cancellation |
| 06/27/1989 | US4843341 Differential amplifier having controllable power consumption |
| 06/27/1989 | US4843339 Isolation amplifier including precision voltage-to-duty-cycle converter and low ripple, high bandwidth charge balance demodulator |
| 06/27/1989 | US4843304 High capacity current mirror circuit |
| 06/27/1989 | US4843260 Variable threshold amplifier |
| 06/27/1989 | US4843257 Regulated power supply for MOS Transistors with short channel length |
| 06/21/1989 | EP0321173A1 A transimpedance pre-amplifier and a receiver including the pre-amplifier |
| 06/21/1989 | EP0321046A1 Ultra-high frequency circuit with at least one charged field-effect transistor |
| 06/21/1989 | EP0320540A1 An audio amplifier |
| 06/20/1989 | US4841254 CMOS precision gain amplifier |
| 06/20/1989 | US4841253 Multiple spiral inductors for DC biasing of an amplifier |
| 06/20/1989 | US4841252 System for compensating for offset voltages in comparators |
| 06/20/1989 | US4841175 ECL-compatible input/output circuits in CMOS technology |
| 06/20/1989 | US4841169 Dual-gate fet amplifier-mixer with intermediate ohmic island for rejecting a frequency band |
| 06/15/1989 | WO1989005543A1 A transimpedance pre-amplifier and a receiver including the pre-amplifier |
| 06/14/1989 | EP0320471A2 Common mode sensing and control in balanced amplifier chains |
| 06/14/1989 | EP0320062A1 Current mirror circuit, and video output amplifier circuit provided with the current mirror circuit |
| 06/13/1989 | US4839612 High-frequency power amplifier having heterojunction bipolar transistor |
| 06/13/1989 | US4839609 Differential amplifier |
| 06/07/1989 | EP0318811A2 Improved power stage with increased output dynamics |
| 06/07/1989 | CN2039087U Power amplifier for megaphone |
| 06/06/1989 | US4837536 Monolithic microwave integrated circuit device using high temperature superconductive material |
| 06/06/1989 | US4837527 Switched capacitor arrangement |
| 06/06/1989 | US4837524 Lower-noise microwave amplifying circuit |
| 06/06/1989 | US4837523 High slew rate linear amplifier |
| 06/06/1989 | US4837522 Noise reducer for microwave amplifier |
| 06/01/1989 | DE3732872C1 Integrierter Transistor-Gegentaktverstaerker Integrated transistor Gegentaktverstaerker |
| 06/01/1989 | DE3731300A1 Method for optimising the transient behaviour of a multistage amplifier with negative feedback, and a multistage amplifier with negative feedback |
| 05/31/1989 | EP0318396A2 Operational amplifier circuit having stable operating point |
| 05/31/1989 | EP0318379A1 Ultra-high frequency amplifier with a very wide pass band |
| 05/31/1989 | EP0318263A2 Folded cascode amplifier with rail-to-rail common-mode range |
| 05/30/1989 | US4835490 Circuit for automatically controlling the gain-bandwidth product of operational amplifiers |
| 05/30/1989 | US4835488 Wideband linearized emitter feedback amplifier |
| 05/30/1989 | US4835487 MOS voltage to current converter |
| 05/30/1989 | US4835486 Isolation amplifier with precise timing of signals coupled across isolation barrier |
| 05/30/1989 | US4835485 Unconditionally-stable ultra low noise R.F. preamplifier |
| 05/24/1989 | EP0317015A1 Quiescent current setting for an amplifier circuit |
| 05/24/1989 | EP0316999A1 Balanced voltage-current converter and double-balanced mixer circuit comprising such a converter |
| 05/24/1989 | EP0316480A1 Monolithic integrated wideband power amplifier |
| 05/23/1989 | US4833424 Linear amplifier with transient current boost |
| 05/23/1989 | US4833423 Apparatus and method for a wide-band direct-coupled transistor amplifier |
| 05/23/1989 | US4833422 Programmable gain instrumentation amplifier |
| 05/23/1989 | US4833418 Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals |
| 05/17/1989 | EP0315877A2 Amplifier |
| 05/16/1989 | US4831337 Wideband amplifier |
| 05/16/1989 | US4831335 High gain miniature crossed-field amplifier |
| 05/16/1989 | US4831334 Envelope amplifier |
| 05/10/1989 | EP0315259A1 Electronic correction of photodiode radiant sensitivity |
| 05/09/1989 | US4829541 Pseudo-ternary code transmitter |
| 05/09/1989 | US4829266 CMOS power operational amplifier |
| 05/09/1989 | US4829264 All NPN differential to single ended amplifier |
| 05/09/1989 | US4829263 High speed instrumentation amplifier with minimized offset voltage and drift |
| 05/05/1989 | WO1989004087A1 Microwave integrated distributed amplifier with field emission triodes |
| 05/03/1989 | EP0314227A2 Wideband single-ended voltage-to current converter and gain-control circuit |
| 05/02/1989 | US4827267 High availability solid state modulator for microwave cross-field amplifiers |
| 05/02/1989 | US4827223 Buffer amplifier |
| 05/02/1989 | US4827222 Input offset voltage trimming network and method |
| 05/02/1989 | US4827221 Integrated audio amplifier commutable in a bridge or stereo configuration in a seven pin package |
| 05/02/1989 | US4827158 Output circuit used in an output stage where large current and large output amplitude are required |
| 05/02/1989 | CA1253586A1 High-frequency amplifier |
| 05/02/1989 | CA1253585A1 Narrow band electroencephalographic amplifier |
| 04/26/1989 | EP0313189A2 Quadcomp amplifier |
| 04/25/1989 | US4825177 Microwave amplifier and other microwave components |
| 04/25/1989 | US4825174 Symmetric integrated amplifier with controlled DC offset voltage |
| 04/25/1989 | US4825172 Use in a microwave antenna system |
| 04/25/1989 | US4825104 Comparator |
| 04/20/1989 | WO1989003612A1 Linearity differential amplifier |
| 04/19/1989 | EP0312445A1 High-frequency amplifier with an automatic neutralizing circuit |
| 04/19/1989 | EP0312142A1 Read circuit for a delay circuit |
| 04/19/1989 | EP0312017A2 Differential amplifier |
| 04/19/1989 | EP0312016A2 Linear differential amplifier |
| 04/19/1989 | CN2036335U Portable tv signal amplifier |
| 04/18/1989 | US4823094 Dual-band high-fidelity amplifier |
| 04/18/1989 | US4823092 MOS transconductance amplifier for active filters |
| 04/18/1989 | US4823025 Electronic circuit element with field-effect transistor operation applications of this circuit element, and substitution circuit for such an element |