Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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01/11/1996 | WO1995030272A3 Negative-resistance-compensated microwave buffer |
01/11/1996 | DE4421369C1 Power amplifier control circuit |
01/10/1996 | EP0691752A1 Transformerless hybrid circuit having direct powered line-side amplifiers |
01/10/1996 | EP0691742A2 Optical receiver with a high impedance preamplifier |
01/10/1996 | EP0691734A1 Amplifier circuit for high frequency signals |
01/10/1996 | CN1114798A Various series bridge linkage circuits and electric source filter circuit of Hi-End electron tube amplifier |
01/09/1996 | US5483200 Light-receiving and amplifying device capable of switching between gain levels at high speed and obtaining a sufficient signal-to-noise ratio over a wide range in quantity of incident light |
01/09/1996 | US5483199 Method and apparatus for compensating thermal time constants in an electronic amplifier |
01/09/1996 | US5483197 Power amplifier circuit for audio signal and audio device using the same |
01/09/1996 | US5483196 Amplifier architecture and application thereof to a band-gap voltage generator |
01/09/1996 | US5483195 Second generation low noise microwave voltage controlled oscillator |
01/09/1996 | US5483194 Differential current mode amplifier device |
01/09/1996 | US5483191 Apparatus for biasing a FET with a single voltage supply |
01/09/1996 | US5483183 Bipolar current sense amplifier |
01/03/1996 | EP0690568A1 Frequency translated filter |
01/03/1996 | EP0690565A1 Common mode error correction for differential amplifiers |
01/03/1996 | EP0690564A1 Method and apparatus for sensing common mode error |
01/03/1996 | EP0690563A2 Output circuit having at least one external transistor |
01/03/1996 | EP0690562A1 Transconductor circuit with high-linearity differential input and active filter thereof |
01/03/1996 | EP0690561A1 Method for erasing a common mode current signal and transconductor assembly using such method |
01/03/1996 | EP0690560A1 Modulator having encoder for fault-adaptive pulse step modulator |
01/02/1996 | US5481500 Precharged bit decoder and sense amplifier with integrated latch usable in pipelined memories |
01/02/1996 | US5481224 Differential amplifier circuit having a driver with square-law characteristic |
01/02/1996 | US5481223 Bi-directional spatial power combiner grid amplifier |
01/02/1996 | US5481217 High current test signal converter circuit |
01/02/1996 | US5481213 Cross-conduction prevention circuit for power amplifier output stage |
01/02/1996 | US5481180 PTAT current source |
01/02/1996 | US5481129 Laser trimmed resistor, controlled hydrogen concentration in silicon nitride layer |
01/02/1996 | US5481104 Photodetector circuit with actively damped tuned input |
12/31/1995 | CA2149682A1 Micro-miniature radio receiver |
12/30/1995 | CA2151417A1 Modulator having encoder for fault-adaptive pulse step modulator |
12/28/1995 | WO1995035595A2 Differential amplifier with common-mode rejection for low supply voltages |
12/28/1995 | WO1995035563A2 Arrangement comprising a magnetic write head, and write amplifier with capacitive current compensation |
12/27/1995 | EP0689286A1 Low voltage, switched capacitance circuit employing switched operational amplifiers with maximized voltage swing |
12/27/1995 | EP0689284A2 Low supply voltage output driver |
12/27/1995 | EP0689283A1 Tunable oscillator arrangement |
12/27/1995 | EP0689060A1 Audio amplifier switching noise measuring method and device |
12/27/1995 | CN1114117A Method and arrangement for controlling the operation of a high-frequency power amplifier |
12/26/1995 | US5479337 Very low power loss amplifier for analog signals utilizing constant-frequency zero-voltage-switching multi-resonant converter |
12/26/1995 | US5479135 Method of ultra-high frequency current amplification using MOSFET devices |
12/26/1995 | US5479134 Power amplifier circuit for audio signal and audio device using the same |
12/26/1995 | US5479133 Ultra high gain amplifier |
12/26/1995 | US5479045 Semiconductor circuit device capable of reducing influence of a parasitic capacitor |
12/26/1995 | US5479044 Semiconductor circuit device capable of reducing influence of a parasitic capacitor |
12/26/1995 | US5477735 Two-wire constant current powered transducer |
12/21/1995 | WO1995034953A1 Tuned amplifier |
12/21/1995 | DE4420876A1 Signal recording circuitry for magnetic carrier |
12/20/1995 | EP0688097A2 Operational amplifiers and current detector circuits |
12/20/1995 | EP0688096A1 Integrated circuit |
12/20/1995 | EP0687967A1 Temperature stable current source |
12/20/1995 | EP0687397A1 Electric power amplifier and process for its operation |
12/19/1995 | US5477370 Push-pull optical receiver having gain control |
12/19/1995 | US5477192 Amplifier suitable for use in a radiotelephone |
12/19/1995 | US5477191 Variable gain amplifier |
12/19/1995 | US5477190 Low voltage linear output buffer operational amplifier |
12/19/1995 | US5477189 Operational amplifier with high slew rate |
12/19/1995 | US5477188 Linear RF power amplifier |
12/19/1995 | US5477186 Chopper type differential amplifier using MOS gate capacitors |
12/19/1995 | US5477170 Comparator capable of preventing large noise voltage |
12/19/1995 | CA2048561C High frequency power amplifier with high efficiency and low distortion |
12/14/1995 | WO1995034129A1 Rail-to-rail gain stage of an amplifier |
12/13/1995 | EP0687061A1 An improved transimpedance amplifier circuit for use in an optical receiver |
12/13/1995 | EP0687060A2 Power amplifier |
12/13/1995 | EP0686307A1 Refractory metal contact for a power device |
12/12/1995 | US5475343 For a differential amplifier input stage |
12/12/1995 | US5475339 Op amp with rail to rail output swing and employing an improved current mirror circuit |
12/12/1995 | US5475338 Active filter circuit of a capacity ground type |
12/12/1995 | US5475337 Switched capacitor amplifier circuit |
12/12/1995 | US5475256 Opto-electronic integrated circuit |
12/12/1995 | CA2069513C Linear transmitter training method and apparatus |
12/07/1995 | WO1995033305A1 Pulse width modulation amplifier |
12/07/1995 | DE4419318A1 HF single-pole throw switch e.g. for switching satellite signals to receiver |
12/07/1995 | CA2147670A1 An improved transimpedance amplifier circuit for use in an optical receiver |
12/06/1995 | EP0685933A1 Differential amplifier |
12/06/1995 | EP0685932A1 Amplifier with transistorised multiple stages in cascade and adjustable output power |
12/06/1995 | EP0685126A1 Cmos operational amplifier with improved rail-to-rail performance. |
12/06/1995 | EP0685125A1 Cross-conduction prevention circuit for power amplifier output stage |
12/06/1995 | CN2214715Y Electron tube positive grid voltage audiofrequency power amplifier |
12/06/1995 | CN1113049A Class AB push-pull drive circuit, drive method therefor and class AB electronic circuit using the same |
12/05/1995 | US5473461 Wide dynamic range optical receiver |
12/05/1995 | US5473281 Amplifier circuit having impedance matching circuit |
12/05/1995 | CA2050680C Push-pull optical receiver |
11/30/1995 | WO1995032548A1 Current mode circuits |
11/30/1995 | WO1995032547A1 Impedance circuit for a miniature hearing aid |
11/29/1995 | EP0684698A1 Class AB output amplifier stage |
11/29/1995 | EP0684537A1 A multiple output current mirror |
11/29/1995 | EP0683950A1 Efficient amplitude/phase modulation amplifier |
11/29/1995 | CN1112748A A continuous time common mode feedback amplifier |
11/28/1995 | US5471665 Differential DC offset compensation circuit |
11/28/1995 | US5471656 Communication apparatus utilizing high power amplifier |
11/28/1995 | US5471175 Input protection circuit for a CMOS comparator |
11/28/1995 | US5471174 Amplifier having an output stage with bias current cancellation |
11/28/1995 | US5471173 Cascaded amplifier having temperature compensation |
11/28/1995 | US5471172 "AB Cascode" amplifier in an input stage of an amplifier or comparator |
11/28/1995 | US5471170 Current-mode amplification system, and corresponding operational amplifier, gain section and amplification element |
11/28/1995 | US5471132 Logarithmic and exponential converter circuits |
11/28/1995 | US5471131 Analog-to-digital converter and reference voltage circuitry |
11/23/1995 | WO1995031858A1 High-frequency amplifier |
11/23/1995 | WO1995031854A1 All mos voltage to current converter |
11/22/1995 | EP0683562A1 Radio-frequency power amplifier |