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)
09/1981
09/22/1981US4291279 Microwave combiner assembly
09/22/1981US4291278 Planar microwave integrated circuit power combiner
09/22/1981US4290335 High frequency roll-off circuit
09/22/1981CA1109531A1 Low frequency power amplifier using mos fet's
09/22/1981CA1109530A1 Commutating signal level translator
09/15/1981US4290026 Power amplifier whose bias voltage changes depending on power supply voltage
09/15/1981US4290024 Voltage-to-current converter circuit
09/15/1981US4290023 Voltage offset circuit for auto-zero low voltage amplifier
09/09/1981EP0035403A1 Voltage measuring instrument and preamplifier therefor
09/01/1981US4287479 Operational amplifier circuit
09/01/1981US4287478 Amplifier arrangement comprising two transistors
09/01/1981US4287477 Feedback arrangement
09/01/1981US4287438 Field effect transistor current source
09/01/1981US4287390 Power amplifier apparatus having over-current protection function
09/01/1981CA1108307A1 Hybrid integrated circuit and a method for producing the same
08/1981
08/25/1981US4286276 Dual Schottky contact avalanche semiconductor structure with electrode spacing equal to EPI layer thickness
08/25/1981US4286227 Transistor amplifying circuit for preventing the operation of an amplifying transistor in the quasi-saturation region
08/25/1981US4286225 Isolation amplifier
08/25/1981US4286177 Integrated injection logic circuits
08/25/1981US4286123 Bridge amplifier
08/25/1981US4285345 Monolithic pacemaker utilizing I2 L circuitry
08/25/1981CA1107855A1 Current control circuit
08/18/1981US4284960 Photo-feedback preamplifier circuit
08/18/1981US4284959 Folded-cascode amplifier arrangement with cascode load means
08/18/1981US4284958 Folded-cascode amplifier arrangement with current mirror amplifier
08/18/1981US4284957 CMOS Operational amplifier with reduced power dissipation
08/18/1981US4284945 Current dividers using emitter-coupled transistor pairs
08/18/1981US4284922 Linear beam microwave amplifier having section comprising three resonant coupled circuits two of which are resonant cavities which interact with the beam
08/18/1981US4284912 Switching circuits for differential amplifiers
08/18/1981US4284334 Circuit arrangement for the compensation of the temperature coefficient of semiconductor junctions
08/18/1981CA1107397A1 Charge transfer device
08/11/1981US4283685 Waveguide-to-cylindrical array transition
08/11/1981US4283683 Audio bridge circuit
08/11/1981US4283641 Feedback biasing circuit arrangement for transistor amplifier
08/06/1981WO1981002233A1 Current mirror circuit
08/06/1981WO1981002232A1 Electrical amplifier
08/04/1981US4282492 Modular multiple channel signal processor
08/04/1981US4282491 Amplifier with severed transmission lines
08/04/1981CA1106514A1 Paging amplifier for a key telephone system
07/1981
07/29/1981EP0032551A1 Method for compensating the drift voltage of an operational amplifier and resulting macro cell
07/29/1981EP0032533A1 Amplifier circuit
07/23/1981WO1981002078A1 Nmos amplifier using unimplanted transistors
07/22/1981EP0032335A1 High-power electrical signals generator
07/22/1981EP0032332A1 Radiofrequency power divider, and radiofrequency devices, especially solid-state devices, using the same
07/21/1981US4280064 Signal isolator
07/14/1981US4278946 Current scaling circuitry
07/14/1981US4278889 Current amplifier with automatic drift correction for tomographic scanners
07/08/1981EP0031677A1 Class AB push-pull FET amplifiers
07/08/1981EP0031374A1 Bridge amplifier
07/07/1981US4277764 Microwave transistor stabilization circuit
07/07/1981US4277757 Two stage RF amplifier
07/07/1981US4277756 Amplifier circuit arrangement for aperiodic signals
07/01/1981EP0031182A1 Amplifier arrangement with parallel-operated amplifier sections
07/01/1981EP0031138A1 Transistor push-pull output
06/1981
06/30/1981US4276516 Thermal stress reduction in IC power transistors
06/30/1981US4276515 Differential amplifier circuit arrangement with stabilized input impedance
06/30/1981US4276513 Auto-zero amplifier circuit with wide dynamic range
06/30/1981CA1104220A1 Gain and impedance switching circuit for an amplifier
06/25/1981WO1981001780A1 Bandpass amplifier circuits
06/23/1981US4275360 Electronic amplifier circuit arrangements
06/23/1981US4275359 MOS FET Amplifier
06/23/1981US4275268 Mixing apparatus
06/16/1981US4274060 Signal change-over amplifier
06/16/1981US4274059 Single ended push-pull amplifier
06/16/1981US4274058 Amplifier with separate AC and DC feedback loops
06/16/1981US4274056 Charge amplifier with minimum offset voltage
06/16/1981US4274018 Saturation limited bias circuit for complementary transistors
06/16/1981US4274016 Voltage-to-current converter
06/11/1981WO1981001628A1 Klystron
06/09/1981US4272740 Coaxial-to-cylindrical array transition
06/09/1981US4272728 Differential-input amplifier circuit
06/03/1981EP0029767A1 Control process for a Darlington circuit and low-loss Darlington circuit
06/03/1981EP0029700A1 Analog-to-digital converter
06/02/1981US4271433 SAW Filter preamplifier
06/02/1981US4271394 Amplifier circuit
06/02/1981CA1102418A1 Amplifier systems
05/1981
05/26/1981US4270151 Microphone mixer with predistortion indication
05/26/1981US4270126 Video amplifier arrangement with wideband D-C gain control
05/26/1981US4270099 Circuit arrangement for generating and stably amplifying broadband rf signals
05/26/1981US4270092 Current controlling circuitry for logical circuit reference electric level circuitry
05/26/1981US4270081 Constant-current circuit
05/26/1981CA1101944A1 Electric amplifier
05/26/1981CA1101943A1 Video switching circuit
05/26/1981CA1101941A1 Two-terminal photodetectors with inherent ac amplification properties
05/20/1981EP0028961A1 Charge transfer filter and switched capacitor filter comprising a voltage multiplier with switched capacitors
05/20/1981EP0028932A1 Folded-cascode amplifier arrangement with cascode load means
05/20/1981EP0028685A2 Darlington transistor circuit
05/19/1981US4268798 High performance summing amplifier
05/19/1981US4268797 Self-pulsed microwave power amplifier
05/19/1981US4268796 Linear amplifier with distortion correction
05/19/1981US4268795 Pulsed voltage amplification device with drift correction
05/19/1981US4268764 Zero crossover detector
05/19/1981US4268759 Signal-processing circuitry with intrinsic temperature insensitivity
05/19/1981EP0023506A4 Semiconductor differential amplifier having feedback bias control for stabilization.
05/19/1981CA1101503A1 Interferometric amplifier
05/19/1981CA1101502A1 Amplifier device for transmitting tetrode
05/12/1981US4267521 Compound transistor circuitry
05/12/1981US4267520 Hybrid component for very high frequency amplification
05/12/1981US4267519 Operational transconductance amplifiers with non-linear component current amplifiers
05/12/1981US4267517 Operational amplifier
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