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)
09/1994
09/21/1994	EP0616422A1 Pulse width modulation circuit
09/21/1994	EP0616421A1 Feedback amplifier for regulating cascode gain enhancement
09/21/1994	EP0616420A1 Onboard l.f. amplifier, onboard receiver for telecontrol signals
09/21/1994	EP0616375A2 Photocoupler apparatus
09/21/1994	EP0615669A1 Process and circuit for measuring particle fluxes
09/20/1994	US5349308 Amplifier using a follower transistor
09/20/1994	US5349307 Constant current generation circuit of current mirror type having equal input and output currents
09/20/1994	US5349306 Apparatus and method for high performance wide-band power amplifier monolithic microwave integrated circuits
09/20/1994	US5349305 Electronic system
09/20/1994	US5349304 Operational amplifier having multiple positive inputs
09/20/1994	US5349303 Electrical charge transfer apparatus
09/20/1994	US5349301 Multiple amplifier system for a car
09/20/1994	US5349286 Compensation for low gain bipolar transistors in voltage and current reference circuits
09/20/1994	US5349285 Power supply circuit
09/15/1994	WO1994021037A1 Amplifier with high common mode rejection
09/15/1994	WO1994021036A1 Switching amplifier with impedance transformation output stage
09/15/1994	WO1994021035A1 Modulation amplifier for radio transmitters
09/15/1994	WO1994021034A1 Electric power amplifier and process for its operation
09/13/1994	US5347587 Speaker driving device
09/13/1994	US5347388 Push-pull optical receiver having gain control
09/13/1994	US5347231 Low noise charge sensitive preamplifier DC stabilized without a physical resistor
09/13/1994	US5347230 Amplification circuit
09/13/1994	US5347229 Power amplifier with harmonically trapped heterojunction bipolar transistor
09/13/1994	US5347174 Circuit arrangement for converting a voltage drop tapped from a test object from a predetermined input voltage range to a desired output voltage range
09/06/1994	US5345346 Positive feedback low input capacitance differential amplifier
09/06/1994	US5345237 Differential amplifier and two-step parallel A/D converter
09/06/1994	US5345198 Power supply modulator circuit for transmitter
09/06/1994	US5345192 Voltage controlled integrated circuit for biasing an RF device
09/06/1994	US5345190 Modular low voltage filter with common mode feedback
09/06/1994	US5345165 Frequency-stabilized two-state modulation using hysteresis control
09/06/1994	US5345118 Precision MOS resistor
09/06/1994	US5345117 Synchronous separating circuit
09/06/1994	US5345111 High-speed current sense amplifier
09/06/1994	US5345073 Very high speed optical receiver with a cascadable differential action feedback driver
09/01/1994	WO1994019866A1 Cmos operational amplifier with improved rail-to-rail performance
08/1994
08/31/1994	EP0613248A1 Integrated circuit amplifiers
08/31/1994	EP0613243A1 Anti-logarithmic converter with temperature compensation
08/31/1994	EP0613242A1 Self-configurable dual bridge power amplifier
08/31/1994	EP0613241A1 Output common-mode voltage control device of a balanced amplifier
08/31/1994	EP0613240A1 High gain rail-to-rail CMOS amplifier
08/31/1994	EP0560815B1 Method for clockfeedthrough error compensation in switched capacitor circuits
08/31/1994	EP0372018B1 GaAs CAPACITIVE FEEDBACK TRANSIMPEDANCE AMPLIFIER
08/31/1994	EP0248789B1 High-fidelity audio frequency amplifier
08/30/1994	US5343172 Variable reactance circuit for microwave or millimeter wave band and variable matching circuit using variable reactance circuit
08/30/1994	US5343166 Efficient high fidelity audio power amplifier
08/30/1994	US5343165 Amplifier having a symmetrical output characteristic
08/30/1994	US5343164 Operational amplifier circuit with slew rate enhancement
08/30/1994	US5343163 Single-ended and differential transistor amplifier circuits with full signal modulation compensation techniques which are technology independent
08/30/1994	US5343162 RF variable gain tuned output amplifier which maintains high Q in saturation
08/30/1994	US5343161 Power amplifier apparatus
08/30/1994	US5343160 Fully balanced transimpedance amplifier with low noise and wide bandwidth
08/30/1994	US5343032 Diode-clamped optical receiver
08/24/1994	EP0612152A2 A level shift circuit
08/24/1994	EP0612142A2 RF transistor harmonic trap
08/24/1994	EP0611487A1 High isolation switch
08/23/1994	US5341108 Amplifier biasing circuit
08/23/1994	US5341090 Bidirectional, transconductance, DC amplifier having high output compliance voltage
08/23/1994	US5341087 Reference current loop
08/23/1994	US5341086 Constant-current circuit for light-emitting element
08/23/1994	US5341051 N-dimensional basis function circuit
08/23/1994	US5341050 Switched capacitor amplifier circuit operating without serially coupled amplifiers
08/18/1994	WO1994018775A1 Efficient amplitude/phase modulation amplifier
08/17/1994	EP0611105A2 Current source
08/17/1994	EP0610430A1 Analog-to-digital converter and method of fabrication
08/17/1994	CN1090950A Electronic switching device for short-circuiting input of power amplifying transistor for making driving circuit micropower
08/16/1994	US5339285 Monolithic low noise preamplifier for piezoelectric sensors
08/16/1994	US5339048 Radio frequency amplifier
08/16/1994	US5339047 X-band bipolar junction transistor amplifier
08/16/1994	US5339044 High linearity differential circuit
08/16/1994	US5339042 Input stage offset compensation device
08/16/1994	US5339019 Current sink
08/16/1994	US5338989 Microwave integrated circuit
08/16/1994	US5338925 Apparatus for simultaneously detecting a plurality of discrete laser modulation frequencies having circuitry for background radiation canceling
08/16/1994	CA2032401C Circuit for measuring the level of an electrical signal and including offset correction means, and application thereof to amplifiers having automatic gain control
08/11/1994	DE4301916A1 RF telephone amplifier
08/10/1994	EP0610064A2 Transistor switching
08/09/1994	US5337090 Video output circuit with wide bandwidth and low power consumption for high resolution display
08/09/1994	US5337025 Adaptive equalization circuit for equalizing the frequency response of varying lengths of transmission line
08/09/1994	US5337012 Amplifier having temperature compensated bias control
08/09/1994	US5337011 Pre-amplifier
08/09/1994	US5337010 Wide-band amplifier apparatus
08/09/1994	US5337009 Error amplifier
08/09/1994	US5337008 High gain rail-to-rail CMOS amplifier
08/09/1994	US5337007 High efficiency class AB transconductance amplifier
08/09/1994	US5336986 Voltage regulator for field programmable gate arrays
08/09/1994	US5336946 Differential output stage with reduced idle current
08/04/1994	WO1994017588A1 Closed loop power controller
08/04/1994	WO1994017587A1 Linear amplifier control
08/04/1994	WO1994017558A1 Monolithic passive component
08/03/1994	EP0609053A2 Voltage controlled integrated circuit for biasing an RF device
08/03/1994	EP0609018A1 Apparatus for measuring optical power in an optical receiver or the like
08/03/1994	EP0608998A2 A unity-gain, wide bandwidth, bipolar voltage follower with a very low input current
08/03/1994	EP0608938A1 Amplifier with differential input stage and integrated stabilisation capacitor
08/03/1994	EP0608933A1 Differential amplifier common-mode rejection
08/03/1994	EP0608886A2 Differential amplifier circuit having a driver with square-law characteristic
08/02/1994	US5334950 Class-AB push-pull drive circuit
08/02/1994	US5334949 Differential amplifiers
08/02/1994	US5334948 CMOS operational amplifier with improved rail-to-rail performance
08/02/1994	US5334944 Differential amplifier circuit for enhancing small voltage signals
08/02/1994	CA2000670C Self equalizing multi-stage radio frequency power amplifier

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