| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/24/1998 | US5732325 Waste energy control and management in power amplifiers |
| 03/24/1998 | US5731739 Class A operational amplifier with area efficient MOS capacitor frequency compensation |
| 03/19/1998 | WO1998011683A1 Arrangements and methods for generating a radio frequency signal |
| 03/19/1998 | WO1998011664A1 High-efficiency amplifying device |
| 03/19/1998 | WO1998010874A1 Amplifying circuit for reading a capacitive input |
| 03/19/1998 | DE19637582A1 Verstärkeranordnung hohen Wirkungsgrades High efficiency amplifier arrangement |
| 03/18/1998 | EP0829959A2 Filter circuit |
| 03/18/1998 | EP0829955A1 Low noise amplifier structure |
| 03/18/1998 | EP0829796A1 Voltage controller with attenuated temperature sensitivity |
| 03/18/1998 | EP0829132A2 RAIL-TO-RAIL INPUT STAGES WITH CONSTANT gm AND CONSTANT COMMON-MODE OUTPUT CURRENTS |
| 03/18/1998 | EP0829131A1 Minimum power-consumption amplifier |
| 03/18/1998 | CN1176538A Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems |
| 03/18/1998 | CN1176529A AGC voltage correction circuit |
| 03/17/1998 | US5729178 Fully differential folded cascode CMOS operational amplifier having adaptive biasing and common mode feedback circuits |
| 03/17/1998 | US5729177 Common mode rail-to-rail amplifier with a constant transconductance |
| 03/17/1998 | US5729175 Method of driving a class D audio power amplifier using non-overlapping edge drive signals |
| 03/17/1998 | US5729174 Circuit arrangement for transmitting audio signals |
| 03/17/1998 | US5729122 Unit using IC device having constant-current circuitry |
| 03/13/1998 | CA2214849A1 Low noise amplifier structure |
| 03/12/1998 | WO1998010513A1 Method and system for preventing an amplifier overload condition in a hybrid matrix amplifier array |
| 03/12/1998 | DE19719168A1 Power supply with high frequency source that converts DC into AC |
| 03/11/1998 | EP0828412A1 HF-Module, e.g.Tuner |
| 03/11/1998 | EP0828297A2 Photosensor circuit |
| 03/11/1998 | CN1175822A Electronic circuit for converting differential signal into single-ended signal by resistor network |
| 03/11/1998 | CN1175821A Silent start class D amplifier |
| 03/11/1998 | CN1175820A Inverted amplifying circuit |
| 03/10/1998 | US5726606 Electronic circuit |
| 03/10/1998 | US5726605 Silicon carbide RF power module |
| 03/10/1998 | US5726604 Differential transconductor stage dynamically controlled by the input signal's amplitude |
| 03/10/1998 | US5726603 Linear RF power amplifier |
| 03/10/1998 | US5726602 Stabilized rail-to-rail speaker driver circuit |
| 03/10/1998 | US5726597 Method and circuit for reducing offset voltages for a differential input stage |
| 03/10/1998 | US5726592 Self biased low-voltage differential signal detector |
| 03/05/1998 | WO1998004037A3 Electronic circuit comprising complementary transconductors for filters and oscillators |
| 03/05/1998 | DE19636326A1 Op. amp. circuit operating system for automatic offset error correction |
| 03/05/1998 | DE19634052A1 Controlling push=pull end stage with two transistors |
| 03/04/1998 | EP0827281A2 Circuit arrangement with at least two signal paths |
| 03/04/1998 | EP0827272A1 Operational amplifier |
| 03/04/1998 | EP0827271A2 Semiconductor device capable of being connected as a single ended push-pull amplifier |
| 03/04/1998 | EP0332636B1 A signal-shaping network |
| 03/04/1998 | CN1175184A Power source equipment |
| 03/03/1998 | US5724519 For displaying an input video signal |
| 03/03/1998 | US5724168 Wireless diffuse infrared LAN system |
| 03/03/1998 | US5724039 D/A converter |
| 03/03/1998 | US5724004 Voltage bias and temperature compensation circuit for radio frequency power amplifier |
| 03/03/1998 | US5723948 Helix travelling-wave tube with a maximum small signal gain at the operating voltage |
| 02/26/1998 | WO1998008302A1 High gain, wide band amplifier |
| 02/26/1998 | WO1998008301A1 High gain, wide band amplifier |
| 02/25/1998 | EP0825710A1 Filter with amplifier |
| 02/25/1998 | EP0825709A1 Grounded-emitter amplifier circuit with an attenuator |
| 02/25/1998 | EP0825452A2 Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems |
| 02/25/1998 | EP0824787A2 Circuit arrangement comprising a logarithmic transfer function |
| 02/25/1998 | EP0824783A1 Balanced double-folded cascode operational amplifier |
| 02/24/1998 | US5721594 Video differential bus receiver for audio/video interconnection |
| 02/24/1998 | US5721512 Current mirror with input voltage set by saturated collector-emitter voltage |
| 02/24/1998 | US5721504 For keeping a signal line at a predetermined voltage |
| 02/24/1998 | US5721500 Efficient CMOS amplifier with increased transconductance |
| 02/19/1998 | WO1998007232A1 An amplifier and a method for detecting the presence of a load |
| 02/19/1998 | WO1998007110A1 Ambient temperature cadmium zinc telluride radiation detector and amplifier circuit |
| 02/17/1998 | US5719578 Folding amplifier for the construction of an A/D converter |
| 02/17/1998 | US5719529 Operational amplifier and digital signal transfer circuit |
| 02/12/1998 | WO1998006169A1 Voltage to current converter for high frequency applications |
| 02/12/1998 | WO1998006113A1 Choke |
| 02/12/1998 | DE19631892A1 Vacuum tube amplifier audio signal generation circuit |
| 02/11/1998 | EP0823779A2 High-frequency amplifier |
| 02/11/1998 | CN1173081A Circuit device for deviation compensation |
| 02/11/1998 | CN1172978A Voltage to current conversion circuit for converting voltage to multiple current outputs |
| 02/10/1998 | US5717773 Sound system gain and equalization circuit |
| 02/10/1998 | US5717363 Oscillation circuit and oscillation method |
| 02/10/1998 | US5717361 DC feedback common emitter type amplifier circuit having stable gain irrespective of power supply voltage |
| 02/10/1998 | US5717360 High speed variable gain amplifier |
| 02/10/1998 | CA2016286C Cascode mirror video amplifier |
| 02/05/1998 | WO1998005119A1 Power amplifier |
| 02/05/1998 | DE19701997A1 Damped pre-amplifier for use with electrodynamic seismic transducer |
| 02/04/1998 | EP0822659A2 Switched capacitor circuit |
| 02/04/1998 | EP0822657A2 Fully balanced analog circuit |
| 02/04/1998 | EP0822656A1 Circuit arrangement with an operational amplifier |
| 02/03/1998 | US5714916 Modulator |
| 02/03/1998 | US5714909 For processing a current signal received from a circuit device |
| 02/03/1998 | US5714906 Constant transductance input stage and integrated circuit implementations thereof |
| 02/03/1998 | US5714872 Telecommunication terminal with voltage controller having a phase-shifting component and a feedback path |
| 02/03/1998 | CA2144368C Mos transconductance amplifier having squaring circuit for lsi implementation |
| 02/03/1998 | CA2110839C Differential amplifier circuit with improved transconductance linearity |
| 01/29/1998 | WO1998004038A1 A method and device for continuous-time filtering in digital cmos process |
| 01/29/1998 | WO1998004037A2 Electronic circuit comprising complementary transconductors for filters and oscillators |
| 01/29/1998 | WO1998004036A1 High-gain common-emitter output stage |
| 01/29/1998 | WO1998004035A1 Stable method of working point for push-pull output stage of power amplifying circuit and circuit thereof |
| 01/29/1998 | DE19711327A1 Power amplifier with low consumption |
| 01/29/1998 | CA2260915A1 A method and device for continuous-time filtering in digital cmos process |
| 01/28/1998 | EP0821476A2 Method and device for offset compensation of a signal processing circuit |
| 01/28/1998 | EP0821475A1 Amplifier with neuron MOS transistors |
| 01/28/1998 | EP0821474A1 Input stage for transimpedance amplifier |
| 01/28/1998 | EP0821473A1 A microwave VCO having reduced supply voltage |
| 01/28/1998 | EP0821472A1 Circuit device for adjusting the operating point |
| 01/28/1998 | EP0821471A2 Device for self-aligning the adjustment of the bias working point in amplifier circuits with Neuron-MOS transistors |
| 01/28/1998 | EP0821427A1 Dielectric line waveguide |
| 01/28/1998 | EP0821241A2 Lock-in amplifier with selectable phase selectivity |
| 01/28/1998 | CN1171655A Stabilization of operating point of push-pull output stage in power amplifier |
| 01/27/1998 | US5712594 Operational transconductance amplifier operable at low supply voltage |
| 01/27/1998 | US5712591 Parallel preamplifier and equalizer |