Patents
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
12/1996
12/07/1996CA2171159A1 Compact photosensor circuit having automatic intensity range control
12/05/1996WO1996038910A1 Voltage-to-current converter using optical isolation
12/05/1996WO1996038907A2 If amplifiers/limiters
12/05/1996WO1996038906A1 Minimum power-consumption amplifier
12/04/1996EP0746191A2 Solid state high power amplifier module
12/04/1996EP0746122A1 Monolithically integratable mixing device for an audio control desk
12/04/1996EP0746096A1 Grounded inductance circuit using gyrator circuit
12/04/1996EP0746094A1 Offset error compensation system for an operational amplifier
12/04/1996EP0746093A1 Operational amplifier
12/04/1996EP0745923A2 Voltage regulator with load pole stabilization
12/04/1996EP0745921A1 Transistor current generator stage for integrated analog circuits
12/04/1996EP0745868A1 Temperature compensated APD detector bias and transimpedance amplifier circuitry for laser range finders
12/04/1996EP0745285A1 An amplifying circuit
12/03/1996US5581212 Fully differential CMOS transconductance-transimpedance wide-band amplifier
12/03/1996US5581209 For an integrated circuit
12/03/1996US5581174 Band-gap reference current source with compensation for saturation current spread of bipolar transistors
12/03/1996US5581077 For use in an integrated circuit
11/1996
11/28/1996WO1996037951A1 Switched capacitor offset suppression
11/28/1996WO1996037950A1 Channel coupled feedback circuits
11/28/1996WO1996037934A1 Laser driver circuit
11/28/1996DE19518929A1 Lasertreiberschaltung Laser driver circuit
11/28/1996DE19518605A1 Amplification arrangement for matched transmission lines esp. for video signal transmission
11/27/1996EP0744829A1 A high-pass filter, particularly for cancelling out the offset in a chain of amplifiers
11/27/1996EP0744828A2 Transimpedance amplifier circuit
11/27/1996EP0744096A1 Low noise wide band amplifier
11/26/1996US5579397 Amplifier device for a condenser microphone
11/26/1996US5578971 Amplitude modulation circuit and method
11/26/1996US5578967 Circuit compensating for capacitance at inverting input of current feedback amplifier
11/26/1996US5578966 Output stage for a high-speed video amplifier
11/26/1996US5578964 CMOS differential operational amplifier
11/26/1996US5578963 Integrated amplifier with flat gain for high and low impedance loads
11/26/1996US5578961 MMIC bias apparatus and method
11/26/1996US5578825 Infrared ray sensor driving circuit
11/21/1996DE19611879A1 Bandpaßfilter für Vorverstärker Bandpass filter for preamplifier
11/20/1996EP0743767A2 Audio mixing console
11/20/1996EP0743747A2 Apparatus for a low voltage differential amplifier incorporating switched capacitors
11/20/1996CN1136370A Switch-mode power supply for a bridged linear amplifier
11/19/1996USRE35379 Completely differential filter with switched condensers using CMOS operational amplifiers with no common-mode feedback
11/19/1996US5577129 Amplifier circuit for electret condenser microphone
11/19/1996US5576723 VGA signal converter for converting VGA color signals to VGA monochrome signals
11/19/1996US5576656 Voltage regulator for an output driver with reduced output impedance
11/19/1996US5576646 Transconductor circuit with high-linearity double input and active filter thereof
11/19/1996US5576638 Level shift circuit with DC component extraction and controlled current mirrors
11/14/1996WO1996036108A1 Balanced double-folded cascode operational amplifier
11/14/1996WO1996036107A1 Buffer amplifier for liquid crystal display
11/14/1996WO1996036106A2 Feedback amplifier with improved speed and accuracy
11/14/1996DE19619247A1 Air flow meter of thermal resistance type for measuring air flow rate
11/14/1996DE19532990C1 Integrated NPN transistor circuit for signal amplification in receiver input stage
11/13/1996CN1135811A Coplanar waveguide-mounted flip chip
11/13/1996CN1135696A Tuning circuit for receiver, especially for television receiver
11/12/1996US5574967 Waste energy control and management in power amplifiers
11/12/1996US5574678 Continuous time programmable analog block architecture
11/12/1996US5574457 Switched capacitor gain stage
11/12/1996US5574405 Low noise amplifier/mixer/frequency synthesizer circuit for an RF system
11/12/1996US5574404 Optical coupler galvanic isolation device, and modem incorporating it
11/12/1996US5574403 Simple high speed precision transconductance amplifier circuits
11/12/1996US5574402 Monolithic integrated circuit device having microwave power amplifier including a matching circuit using distributed lines
11/12/1996US5574401 Large common mode input range CMOS amplifier
11/07/1996WO1996035258A1 Low-voltage differential amplifier
11/06/1996EP0741414A2 Monolithic microwave integrated circuit and method
11/06/1996CN1135119A Power sharing system for high power RF amplifier
11/05/1996US5572561 Frequency dividing circuit
11/05/1996US5572165 Amplifier arrangements
11/05/1996US5572114 Current mirror circuit with bipolar transistor connected in reverse arrangement
11/05/1996US5572074 Compact photosensor circuit having automatic intensity range control
10/1996
10/31/1996WO1996034451A2 RAIL-TO-RAIL INPUT STAGES WITH gm-CONTROL BY MULTIPLE INPUT PAIRS
10/31/1996DE19616814A1 Circuit to ensure balanced positive and negative voltage supply e.g. for operation amplifier
10/31/1996DE19514993A1 Bidirectional aerial amplifier for telecommunication signals
10/31/1996DE19514450A1 Power amplifier for LF signal
10/30/1996EP0740243A2 Voltage-to-current converter
10/30/1996EP0739549A1 Method and apparatus for calibrating a gain control circuit
10/30/1996CN1134624A Differential amplifying apparatus
10/29/1996US5570062 AM-FM transmitter power amplifier using class-BC
10/29/1996US5570009 Constant-Current circuitry, IC device driver using same, and unit using the device
10/24/1996DE19528844C1 Amplification and phase linearisation system for travelling wave tube and semiconductor amplifiers
10/23/1996EP0739092A1 Voltage comparator requiring no compensating offset voltage
10/23/1996CN1134203A Power supply modulator circuit for transmitter
10/22/1996US5568561 Differential line receiver with common-mode AC bootstrapping
10/22/1996US5568149 A/D converter subsystem with half linear buffer amplifier
10/22/1996US5568094 Rf power amplifier with increased efficiency at low power
10/22/1996US5568093 Efficient, high frequency, class A-B amplifier for translating low voltage clock signal levels to CMOS logic levels
10/22/1996US5568092 Attenuated feedback type differential amplifier
10/22/1996US5568091 Differential amplifier with common-mode rejection for low supply voltages
10/22/1996US5568090 Amplifier circuit with dynamic output stage biasing
10/22/1996US5568089 Fully differential amplifier including common mode feedback circuit
10/22/1996US5568088 Waste energy control and management in power amplifier
10/22/1996US5568086 Linear power amplifier for high efficiency multi-carrier performance
10/22/1996US5568084 Circuit for providing a compensated bias voltage
10/22/1996US5568082 Signal-receiving and signal-processing unit
10/22/1996US5568074 Voltage monitoring circuit
10/22/1996US5568047 Current sensor and method using differentially generated feedback
10/22/1996US5568014 Traveling-wave tube amplifier having collector potential lower than body potential
10/22/1996CA2172568A1 Voltage comparator requiring no compensating offset voltage
10/22/1996CA2084925C Ac power amplifier having current limit control
10/16/1996EP0738038A1 Current amplifier
10/15/1996US5565815 Current amplifier having a fully differential output without a d.c. bias and applications thereof
10/15/1996US5565813 Apparatus for a low voltage differential amplifier incorporating switched capacitors
10/15/1996US5565806 Input/output interface circuit for digital and/or analog signals
10/15/1996US5565672 Optical transimpedance receiver with compensation network
10/10/1996WO1996031954A1 Output power controller