Patents
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
06/1993
06/29/1993US5223800 Distributed arrays of microelectronic amplifiers
06/29/1993US5223753 Slew rate speed-up circuit
06/29/1993US5223743 Adaptive current generating transconductance circuit
06/23/1993EP0547871A1 Improvements in or relating to amplifiers
06/23/1993EP0547813A1 Differential comparator with differential threshold for local area networks or the like
06/22/1993US5222246 Parallel amplifiers with combining phase controlled from combiner difference port
06/22/1993US5221910 Single-pin amplifier in integrated circuit form
06/22/1993US5221909 Active load biasing circuit
06/17/1993DE4140975A1 Amplifier circuitry for optical receiver
06/16/1993EP0546638A1 Stabilized transient response of a cascode CMOS amplifier
06/16/1993EP0546571A1 Amplifier circuit for electret condenser microphone
06/16/1993EP0546173A1 Tone receiver comprising a switch capacitor zero crossing detector.
06/16/1993CN2136552Y High-fidelity voice-frequency power amplifier
06/15/1993US5220686 Tunable resonance amplifier
06/15/1993US5220587 Output circuit for a CCD with a D.C. restoration circuit integrated together with the CCD in a monolithic semiconductor chip
06/15/1993US5220289 Differential amplifier circuit
06/15/1993US5220288 Continuous-time differential amplifier with low offset voltage
06/15/1993US5220272 Switching regulator with asymmetrical feedback amplifier and method
06/15/1993US5220207 Load current monitor for MOS driver
06/10/1993WO1993011607A1 Process and circuit for measuring particle fluxes
06/10/1993WO1993011606A1 Process and arrangement for optimising the output power of parallel-connected amplifiers
06/09/1993EP0545449A1 Trim correction circuit with temperature coefficient compensation
06/09/1993EP0544917A1 Capacitive load driving circuit
06/09/1993DE4140263A1 Power amplifier for HF and HV output - has push=pull power MOSFETS as output devices driven by symmetrical supply voltages via pre-amplifier circuits
06/09/1993DE4140112A1 Verfahren und schaltung zur messung von teilchenstroemen Method and circuit for measurement of particle flows
06/08/1993US5218714 CATV repeating amplifier circuitry
06/08/1993US5218357 Miniature modular microwave end-to-end receiver
06/08/1993US5218323 Transistor direct-coupled amplifier
06/08/1993US5218322 Solid state microwave power amplifier module
06/08/1993US5218321 Low offset unity gain buffer amplifier
06/08/1993US5218320 Wideband amplifier circuit having automatic gain and offset voltage control
06/08/1993US5218319 Differential amplifier and active filter using the same
06/08/1993US5218317 Charged-coupled device for high-power transmitters
06/08/1993US5218315 Switching amplifier
06/03/1993DE4139557A1 Verfahren zur optimierung der ausgangsleistung von parallel geschalteten verstaerkern sowie anordnung A method for optimizing the output power of amplifiers connected in parallel and arrangement
06/02/1993EP0544627A1 Circuit for neutralizing thermal drift in a transconductance stage
06/02/1993EP0544387A1 High gain monolithic microwave integrated circuit amplifier
06/02/1993EP0544360A2 Reference current loop
06/02/1993EP0544338A1 MOS operational amplifier circuit
06/02/1993EP0544193A1 Differential protective device for a modular amplifier
06/02/1993EP0544128A1 Circuit arrangement for a driver circuit
06/01/1993US5216386 Transimpedance amplifier
06/01/1993US5216384 Programmable amplifier device
06/01/1993US5216382 Single ended push pull amplifier circuit
06/01/1993US5216381 Unitary-gain final stage particularly for monolithically integratable power amplifiers
06/01/1993US5216380 Performance operational amplifier and method of amplification
06/01/1993US5216379 Dynamic bias amplifier
06/01/1993US5216376 Pulse duration amplifier system having distortion reduction
06/01/1993US5216354 Controllable voltage-to-current converter having third-order distortion reduction
05/1993
05/26/1993EP0543708A1 Ultra-fast differential amplifier
05/26/1993EP0543275A1 Broad-band amplifier stage with two in-phase decoupled output terminals
05/26/1993EP0543224A2 Speaker driving device
05/25/1993US5214395 Parasitic signal suppression circuit for an extremely high frequency oscillator
05/25/1993US5214394 High efficiency bi-directional spatial power combiner amplifier
05/25/1993US5214392 Multilayered ceramic type electromagnetic coupler apparatus
05/25/1993US5214329 Bias current modulation for differentially coupled transistor circuit
05/25/1993US5214318 Semiconductor integrated circuit device having a signal transmission line pair interconnected by propagation delay time control resistance
05/19/1993EP0542710A1 Method for processing signals
05/19/1993EP0541933A1 Distortion correction for an amplifier system
05/18/1993US5212457 Input buffer with reduced offset for operational amplifiers or the like
05/18/1993US5212456 Wide-dynamic-range amplifier with a charge-pump load and energizing circuit
05/18/1993US5212455 Differential output, power, cmos, operational amplifier
05/14/1993CA2082190A1 Method for processing signals
05/13/1993WO1993009599A2 Analog-to-digital converter and method of fabrication
05/12/1993EP0541164A1 Amplifier
05/12/1993EP0541097A1 Protection circuit
05/11/1993US5210507 Method and apparatus for harmonic reaction amplifier via directional filter
05/11/1993US5210506 Large swing output buffer amplifier
05/11/1993US5210505 Apparatus and method for an input stage of an operational amplifier
05/11/1993US5210504 Semiconductor device for tv tuner and tv tuner using the same
05/11/1993US5210236 Differential amplifier
05/09/1993CA2081787A1 Protection circuit
05/05/1993EP0540286A1 High-frequency power divider and combiner
05/05/1993EP0540146A2 Apparatus for controlling consumption power for GaAs fet
05/05/1993CN1020510C Current-source arrangement
05/04/1993US5208554 For aircraft, gallium arsenide, copper heat sink
05/04/1993US5208553 Multi-stage amplifier with shared directional coupler feedback
05/04/1993US5208552 Rail to rail operational transconductance amplifier
05/04/1993US5208551 Noise reduction circuit with a main signal path and an auxiliary signal path having a high-pass filter characteristic
05/04/1993US5208547 Distributed amplifier having negative feedback
05/04/1993US5207737 Analog output electro-pneumatic transducer
05/04/1993CA1317371C Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals
04/1993
04/29/1993WO1993008638A1 Differential operational amplifier
04/27/1993US5206608 Drain bias circuit for high power microwave field effect transistors (fets) having internal matching
04/27/1993US5206607 Input matching circuit
04/27/1993US5206605 High breakdown voltage/low input capacitance amplifier
04/27/1993US5206604 Broadband high power amplifier
04/27/1993US5206602 Biomedical amplifier circuit
04/27/1993US5206550 Amplifier with actively clamped load
04/21/1993EP0537792A1 Power amplifier, in particular, audio amplifier
04/21/1993CN1071289A RF radiation absorbing material
04/20/1993US5204638 Intrinsic offset recovery circuit particularly for amplifiers
04/15/1993DE4133502A1 Push=pull power amplifier with two asymmetric control stages - has one stage as adjuster of voltage superimposing current source
04/14/1993EP0536667A1 Analogue signal processor
04/13/1993US5202646 Output stage for amplifiers
04/13/1993US5202645 Stabilized transient response of a cascode CMOS amplifier
04/13/1993US5202553 Enhanced performance optical receiver having means for switching between high and low amplifier configurations
04/07/1993EP0535951A1 High efficiency push-pull type output circuit and operational amplifier circuit using the same
04/07/1993EP0535797A2 Insulated gate enhancement mode field effect transistor with slew-rate control on drain output
04/07/1993CN1070782A Apparatus for virtual expansion of power supply capacity