Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/1991
10/09/1991EP0450316A2 High frequency transistor power amplifier
10/09/1991EP0449823A1 Improved variolosser
10/09/1991CN1055272A Amplifier having maximum summed power output from plurality of devices having limited current sinking capability
10/08/1991US5055902 VP -corrected offset voltage trim
10/08/1991US5055799 Amplifier circuit with non-linear load resistance which increases amplifier forward gain at high frequency
10/08/1991US5055798 Hybrid matrix amplifier systems, and methods for making thermally-balanced hybrid matrix amplifier systems
10/08/1991US5055796 CMOS output stage
10/08/1991US5055719 Current conveyor circuit
10/02/1991EP0449720A1 Bidirectional transmission active antenna
10/02/1991EP0449513A1 High-gain differential amplifier circuit fabricated from field effect transistors
10/02/1991EP0449200A1 Differential output stage for electronic equipment
10/02/1991EP0449104A1 Amplifier having maximum summed power output from a plurality of devices having limited current sinking capability
10/02/1991EP0448951A2 Low-noise amplifier with high input impedance, particularly for microphones
10/02/1991EP0448828A2 Emitter-follower circuit arrangement
10/01/1991US5053721 High fidelity regenerative amplifier with phase correction circuit
10/01/1991US5053720 Power amplifying circuit
10/01/1991US5053719 Wide-band push-pull amplifier
10/01/1991US5053718 Feedback control reducing signal distortion produced by differential amplifier stage
10/01/1991US5053650 Monolithic semiconductor integrated circuit device having current adjusting circuit
10/01/1991CA1290029C Differential amplifier having controllable power consumption
10/01/1991CA1290028C Asymmetrical dual input amplifier
09/1991
09/28/1991CA2038811A1 Bidirectional active transmission antenna
09/27/1991CA2034477A1 Gradient amplifier system with flexible amplifier allocation
09/25/1991EP0448169A1 Amplifier arrangement
09/25/1991EP0448143A2 Operational amplifier
09/24/1991US5051708 Amplifier arrangement with output power boosting
09/24/1991US5051706 High frequency power amplifier circuit
09/24/1991US5051373 Method of fabricating MMIC semiconductor integrated circuits using the RF and DC measurements of an active device on a substrate to design the passive elements, which are then E-beam written to the substrate
09/18/1991EP0446945A2 Electronic equipment incorporating an integrated BTL circuit
09/18/1991EP0446880A2 Current mode multiplexed sample & hold circuit
09/18/1991EP0446652A1 CMOS transconductance operational amplifier
09/18/1991EP0446407A2 Circuit for preventing crosstalk
09/18/1991EP0446275A1 Single input to differential output amplifier
09/17/1991US5049837 Push-pull transformer coupled RF amplifier with response to DC
09/17/1991US5049836 High voltage electrical amplifier having a short rise time
09/17/1991US5049834 Amplifier having a constant-current bias circuit
09/17/1991US5049833 Amplifier stage
09/17/1991US5049758 Adaptable CMOS winner-take all circuit
09/17/1991US5049653 Wideband buffer amplifier with high slew rate
09/17/1991CA1289217C Photodetector having cascaded photoelements
09/17/1991CA1289205C Symmetric integrated amplifier with controlled dc offset voltage
09/16/1991CA2038415A1 Current mode multiplexed sample & hold circuit
09/12/1991DE4007564A1 MOSFET power amplifier for inductive loads - uses symmetrical bridge circuit with balancing inductors and free wheeling diodes
09/11/1991EP0445879A1 Broadband signal amplifier
09/11/1991CN1054511A 伺服放大器 Servo amplifier
09/11/1991CN1013912B Single input to differential output amplifier
09/10/1991US5047732 Wide band amplifier
09/10/1991US5047731 Variable gain wideband bipolar monolithic amplifier
09/10/1991US5047729 Transconductance amplifier
09/10/1991US5047728 Amplifier having a low noise active GaAs MESFET load
09/10/1991US5047727 Offset-voltage-balancing operational amplifier
09/10/1991US5047665 Low noise, low offset, high speed CMOS differential amplifier
09/10/1991US5047664 Trimming circuit
09/05/1991WO1991013491A1 Transistor saturation-preventing circuit
09/04/1991EP0444466A1 Balanced microphone preamplifier in CMOS technology
09/04/1991CN1013819B Power amplification circuit of large power tube without overloading
09/03/1991US5046155 Highly directive, broadband, bidirectional distributed amplifier
09/03/1991US5046101 Audio dosage control system
09/03/1991US5045910 Integrated power transistor comprising means for reducing thermal stresses
09/03/1991US5045810 Broadband amplifier with a constant gain and a determined input impedance at high frequency
09/03/1991US5045808 Single-stage high-gain amplifier
09/03/1991US5045807 Amplifier circuit using feedback load
09/03/1991US5045806 Offset compensated amplifier
09/03/1991US5045805 High precision composite amplifier with improved high speed response
09/03/1991US5045804 Amplifying circuit
09/03/1991US5045803 Amplification circuit with a determined input impedance and various transconductance values
09/03/1991US5045733 Switching apparatus with cascaded switch sections
09/03/1991CA1288486C Implementation and control of filters
08/1991
08/28/1991EP0443732A2 Load circuit for differential driver
08/28/1991EP0443507A2 High-efficiency audio amplifier for use in high fidelity
08/28/1991EP0443484A1 Power link, protected by redundancy, for microwave signals
08/28/1991EP0443368A2 Constant-amplitude wave combination type amplifier
08/28/1991EP0443239A1 Current mirror with base current compensation
08/27/1991US5043859 Half bridge device package, packaged devices and circuits
08/27/1991US5043675 Difference amplifier employing input attenuator network and powered by a single polarity power supply
08/27/1991US5043674 Differential receiver with high common-mode range
08/27/1991US5043673 Compensating circuit for a high frequency amplifier
08/27/1991US5043608 Correction circuit
08/27/1991US5043601 Wide-band amplifier useful for squarewave signals
08/27/1991US5043599 CMOS differential comparator with offset voltage
08/24/1991CA2036830A1 Microwave signal power link with redundancy protection
08/22/1991WO1991012574A1 Current conveyor
08/22/1991WO1991012573A1 Frequency response-compensated circuit
08/21/1991EP0442797A1 Circuit for switching a microwave output signal towards a first or a second output port
08/21/1991EP0442637A2 Circuit arrangement for connecting RF amplifier and supply voltage filter
08/21/1991EP0442573A1 Current compensation circuit
08/21/1991EP0441805A1 Current regulator.
08/20/1991US5041797 Micro-power gain lattice
08/20/1991US5041796 Wideband amplifier using FET
08/20/1991US5041795 Three-terminal operational amplifier and applications thereof
08/20/1991US5041794 Voltage to current conversion switching system
08/20/1991US5041744 Chopper type comparator
08/17/1991WO1991012658A1 Push-pull optical receiver
08/17/1991CA2036130A1 Circuit for surtching a microwave signal to one of two outputs
08/14/1991DE4004135A1 Frequenzgangkompensierte schaltung Frequency-response-compensated circuit
08/14/1991CN2082921U Full channel antenna amplifier
08/13/1991US5040050 Hybrid circuit comprising a cascade connection of parallel-transistor stages
08/13/1991US5039954 Amplifier arrangement
08/13/1991US5039953 Class AB CMOS output amplifier
08/13/1991US5039952 Electronic gain cell
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