| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/21/1997 | DE19626283A1 Discriminator circuit for DC-free data signal receiver |
| 08/20/1997 | EP0790704A1 Operational amplifier |
| 08/20/1997 | EP0790703A1 Quiescent current control for the output stage of an amplifier |
| 08/20/1997 | EP0789952A1 Folding a/d converter |
| 08/20/1997 | EP0789949A1 g m?-CONTROL FOR CMOS RAIL-TO-RAIL INPUT STAGES BY REGULATING THE SUM OF THE GATE-SOURCE VOLTAGES CONSTANT |
| 08/20/1997 | EP0701748B1 Four quadrant current mode switching amplifier |
| 08/20/1997 | EP0570491B1 High power switch-mode radio frequency amplifier method and apparatus |
| 08/20/1997 | CN1157505A Power amplifier predriver stage |
| 08/20/1997 | CN1035712C Inductive output vacuum-tube amplifier |
| 08/19/1997 | US5659267 High gain K-band power amplifier with unconditionally stable MMIC FET cells |
| 08/19/1997 | US5659266 Low volatage output stage with improved output drive |
| 08/19/1997 | US5659264 Temperature drift stabilized filter circuit |
| 08/19/1997 | US5659261 Analog-to-digital converter and output driver |
| 08/14/1997 | WO1997019514A3 Amplifiers and compound transistors |
| 08/14/1997 | DE19630112C1 Amplifier circuit using neuron MOSFET |
| 08/14/1997 | DE19630111C1 Self-adjusting amplifier operating point setting device e.g. for audio and video applications |
| 08/13/1997 | EP0789452A1 A power amplifier with bootstrap voltage clamp |
| 08/13/1997 | EP0789451A1 High frequency amplifier and control |
| 08/13/1997 | EP0789450A2 An efficient RF CMOS amplifier with increased transconductance |
| 08/13/1997 | EP0789312A1 Method of compensating offset voltage caused in analog arithmetic unit and analog arithmetic unit |
| 08/13/1997 | EP0788680A1 Circuit arrangement provided with a voltage - current converter |
| 08/13/1997 | EP0500700B1 High fidelity hearing aid amplifier |
| 08/12/1997 | US5657219 Opposed current power converter |
| 08/12/1997 | US5657020 Microwave pulse signal amplifier device |
| 08/12/1997 | US5656973 Broadband amplifier having uniform frequency response |
| 08/12/1997 | US5656968 Circuit arrangement for regulating the load current of a power MOSFET |
| 08/12/1997 | US5656947 Low noise digital output buffer |
| 08/07/1997 | WO1997028603A1 Distortion compensation for a capacitively loaded follower |
| 08/06/1997 | EP0788170A2 Source-follower amplifier employing a fully depleted well structure |
| 08/06/1997 | EP0787382A1 A second generation low noise microwave voltage controlled oscillator |
| 08/06/1997 | EP0787381A1 Am-fm transmitter power amplifier using class-bc |
| 08/06/1997 | CN1035583C Low supply voltage output driver |
| 08/05/1997 | US5655047 Video signal frequency modulator having automatic control function and controlling method therefor |
| 08/05/1997 | US5654673 Amplifier having field effect or bipolar transistors and a power supply voltage supplied by a source or emitter following respectively |
| 08/05/1997 | US5654671 Compensation circuit for input stage of high speed operational amplifier |
| 08/05/1997 | US5654670 Active distributed signal injector |
| 08/05/1997 | US5654669 Programmable instrumentation amplifier |
| 08/05/1997 | US5654668 High efficiency bridge amplifier |
| 08/05/1997 | US5654666 High input resistance circuit with base current compensation and method of compensating base current |
| 08/05/1997 | US5654663 Circuit for providing a compensated bias voltage |
| 08/05/1997 | US5654629 Current mirror in MOS technology comprising cascade stages with wide drive ranges |
| 07/31/1997 | WO1997027668A1 Point feedback |
| 07/31/1997 | WO1997020384A3 Current one-shot circuit |
| 07/30/1997 | EP0786899A2 Image signal read-out circuitry with offset correction |
| 07/30/1997 | EP0786859A2 Power amplifying circuit and method |
| 07/30/1997 | EP0786858A1 An amplifier with a low offset |
| 07/30/1997 | EP0507926B1 Linear transmitter training method and apparatus |
| 07/30/1997 | CN1155811A Kinescope driver apparatus |
| 07/30/1997 | CN1155782A Wide range variable output amplifier apparatus with high efficiency |
| 07/29/1997 | US5652546 AM-FM transmitter power amplifier using class-BC |
| 07/29/1997 | US5652545 Wide-band amplifier |
| 07/29/1997 | US5652543 Amplifier array for high-frequency signals and multiplexer configuration including the amplifier array |
| 07/29/1997 | US5652425 Photoelectric conversion module with noise compensation |
| 07/24/1997 | DE19609621C1 Offset compensation for interval driven cascaded difference amplifiers |
| 07/24/1997 | DE19601550A1 Control circuit for transistor HF amplifier stage output |
| 07/23/1997 | EP0785678A2 Input switch circuit for switching two video signals |
| 07/23/1997 | EP0785629A1 Level conversion circuit having differential circuit employing MOSFET |
| 07/23/1997 | EP0785622A2 Ring oscillator using even number of differential stages with current mirrors |
| 07/23/1997 | EP0785617A2 Low noise-low distortion HEMT low noise amplifier (LNA) with monolithic tunable HBT active feedback |
| 07/23/1997 | EP0785501A2 Apparatus for eliminating audio noise when power is cycled to a computer |
| 07/23/1997 | EP0784885A2 Amplifier |
| 07/23/1997 | CN1155183A Low-power transconductance drive amplifier |
| 07/23/1997 | CN1155182A Analog signal amplifier and audio signal amplifier |
| 07/22/1997 | US5650753 Low-voltage rail-to-rail operational amplifier |
| 07/22/1997 | US5650752 Amplifier circuit with parallel connected amplifiers |
| 07/22/1997 | US5650750 Common mode signal and circuit fault detection in differential signal detectors |
| 07/22/1997 | US5650645 Field effect transistor having capacitor between source and drain electrodes |
| 07/22/1997 | US5650608 Method and apparatus for generating ratiometric control signals |
| 07/22/1997 | CA2093060C Micropower amplifier/transducer driver with signal expansion |
| 07/17/1997 | WO1997025775A1 Linearized alternating voltage amplifier |
| 07/16/1997 | EP0783796A1 Fully differential output cmos power amplifier |
| 07/16/1997 | EP0783795A1 Low noise amplifier for microphone |
| 07/16/1997 | EP0783704A1 High side, current sense amplifier using a symmetric amplifier |
| 07/16/1997 | CN1154768A Output power controller |
| 07/16/1997 | CN1154610A Transmitter power varying device having bypass line for power amplifier |
| 07/16/1997 | CN1154601A Pre-amplifier |
| 07/16/1997 | CN1154600A Linear power amplifying device and method |
| 07/15/1997 | US5648743 Amplifying circuit for an integrated circuit with low-noise characteristic |
| 07/15/1997 | US5648742 Amplifier circuit with reduced turn-on and turn-off transients |
| 07/15/1997 | US5648741 Circuit having overall transfer function providing temperature compensation |
| 07/15/1997 | US5648734 Buffer circuit and bias circuit |
| 07/10/1997 | WO1997024800A1 Efficient parallel-stage power amplifier |
| 07/10/1997 | WO1997024799A1 Differential amplifier with improved low-voltage linearity |
| 07/10/1997 | WO1997024794A2 Integrated driver for half-bridge circuit |
| 07/10/1997 | DE19611980C1 Amplifier circuit for digital hearing aid |
| 07/10/1997 | DE19600173A1 Isolation and/or differential amplifier apparatus with digital optocoupler e.g. PC 817 (RTM) |
| 07/09/1997 | CN1154183A Offset-compensated linear RF detector |
| 07/08/1997 | US5646582 Transmission line switch |
| 07/08/1997 | US5646576 Output stage of operational amplifier suitable for mounting on a substrate and method of amplifying therewith |
| 07/08/1997 | US5646575 Composite precision, high-frequency rail-to-rail amplifier |
| 07/08/1997 | US5646573 Automatic gain-control transimpedence amplifier |
| 07/08/1997 | US5646570 Apparatus for biasing a field effect transistor with a single voltage supply |
| 07/08/1997 | US5646518 PTAT current source |
| 07/08/1997 | US5646517 Voltage regulator for coupled-mode logic circuits |
| 07/03/1997 | WO1997023948A1 Audio amplifier |
| 07/03/1997 | DE19705800A1 Phase reversing stage arrangement for multi=channel amplifier |
| 07/03/1997 | DE19654295A1 Noise suppression control circuit especially for shot noise |
| 07/02/1997 | EP0782253A2 Signal processing method |
| 07/02/1997 | EP0782252A2 Amplifier output stage having enhanced drive capability |
| 07/02/1997 | EP0782251A1 Detector with automatic bias control of a PIN photodiode |