Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
10/1999
10/26/1999US5973567 Tunable impedance matching network for a mic power amplifier module
10/26/1999US5973564 Operational amplifier push-pull output stage with low quiescent current
10/26/1999US5973563 High power output stage with temperature stable precisely controlled quiescent current and inherent short circuit protection
10/26/1999US5973562 Amplifier stage with constant input impedance
10/26/1999US5973561 Differential clamp for amplifier circuits
10/26/1999US5973558 Differential amplifier circuit
10/26/1999US5973557 High efficiency linear power amplifier of plural frequency bands and high efficiency power amplifier
10/26/1999US5973556 Delta-modulated power supply
10/26/1999US5973555 Power amplifier apparatus
10/26/1999US5973543 Bias circuit for bipolar transistor
10/26/1999US5973539 Mixer circuit for mixing two signals having mutually different frequencies
10/26/1999US5973537 Common mode control circuit for a switchable fully differential Op-AMP
10/26/1999US5973515 Differential input stage for wideband reception with high rejection of common mode
10/26/1999US5973368 Monolithic class D amplifier
10/26/1999US5973314 Photoelectric converting device which prevents power source ripple from mixing into an output signal
10/26/1999US5973313 Method and apparatus for generating ratiometric control signals
10/21/1999WO1999039449A9 Amplifier module with two power amplifiers for dual band cellular phones
10/21/1999DE19916606A1 Converter for providing single ended output signal from differential input signal
10/21/1999DE19817283A1 Schaltungsanordnung für einen optischen Empfänger Circuit arrangement for an optical receiver
10/20/1999EP0951149A2 Configurable communication apparatus that permits use of unused multiplexer channels when operating in high power mode
10/20/1999EP0951144A2 Filter circuit
10/20/1999EP0951143A2 Technique for effectively rendering power amplification and control in wireless communications
10/20/1999EP0951142A2 Cmos imager column buffer gain compensation circuit
10/20/1999EP0951141A2 Audio direct from power supply
10/20/1999EP0951140A2 Circuit for an optical receiver
10/19/1999US5969964 Resistor in series with bootstrap diode for monolithic gate driver device
10/19/1999US5969575 Class A/F amplifier having second and third order harmonic input and output filtering and self bias distortion correction
10/19/1999US5969574 Low voltage current sense amplifier
10/19/1999US5969573 Amplifier circuit with small offset voltage influence
10/19/1999US5969571 Pulse duration amplifier system
10/19/1999US5969568 Power output element of an amplifier/transmitter
10/19/1999US5969546 Comparator circuit
10/19/1999CA2050878C Power amplifier with quiescent current control
10/18/1999CA2265143A1 Technique for effectively rendering power amplification and control in wireless communications
10/14/1999WO1999052273A1 Low-noise active pixel sensor for imaging arrays with global reset
10/14/1999WO1999052207A1 MULTI-Gb/s DATA PULSE RECEIVER
10/14/1999WO1999052206A1 Hybrid chireix/doherty amplifiers power waveform synthesis
10/14/1999WO1999052192A1 High vswr mismatch output stage
10/14/1999WO1999045656A3 A differential line driver
10/13/1999EP0949755A2 Switched capacitor amplifier with one-clock delay
10/13/1999EP0949754A2 High-frequency power amplifier circuit and high-frequency power amplifier module
10/13/1999EP0948838A1 Combined linear power amplifying device and method
10/13/1999CN1231543A Mixing amplifier
10/13/1999CN1231542A Semiconductor device
10/12/1999US5966520 Method of designing unit FET cells with unconditional stability
10/12/1999US5966297 Large bandwidth analog isolation circuit
10/12/1999US5966087 Apparatus providing a substantially equal transconductance ratio and method
10/12/1999US5966051 Low voltage medium power class C power amplifier with precise gain control
10/12/1999US5966050 Class B push-pull differential amplifiers of the single-end output
10/12/1999US5966048 Low IMD amplification method and apparatus
10/12/1999US5966046 Large swing wide band programmable active filter
10/12/1999US5966042 Current steering output circuit with switchable shunt resistor
10/12/1999US5966007 Current source circuit
10/12/1999US5966005 Integrated circuit
10/12/1999CA2194935C Tube type power amplifier with distortion control
10/12/1999CA2064327C Broadband phase shifter and vector modulator
10/07/1999WO1999050956A1 Wide-dynamic-range variable-gain amplifier
10/07/1999WO1999050953A2 An amplification circuit and an oscillator comprising said circuit
10/07/1999CA2324109A1 Wide-dynamic-range variable-gain amplifier
10/05/1999US5963158 Current amplifier and current mode analog/digital converter using the same
10/05/1999US5963156 Sample and hold circuit and method with common mode differential signal feedback for converting single-ended signals to differential signals
10/05/1999US5963097 Low-noise amplifier
10/05/1999US5963095 Amplifier circuit, a transmitter and a wireless telephone
10/05/1999US5963094 Monolithic class AB shunt-shunt feedback CMOS low noise amplifier having self bias
10/05/1999US5963093 Output stage of an amplifier circuit
10/05/1999US5963092 High dynamic range low noise transconductance amplifier
10/05/1999US5963089 Semiconductor amplifying apparatus and communication terminal apparatus
10/05/1999US5963088 Fully balanced analog circuit
10/05/1999US5963086 Class D amplifier with switching control
10/05/1999US5963085 Input to output stage interface with virtual ground circuitry for rail to rail comparator
10/05/1999US5963084 Gm-C cell with two-stage common mode control and current boost
10/05/1999US5963081 Circuit arrangement having at least two signal paths
10/05/1999US5963065 Low offset push-pull amplifier
10/05/1999US5963064 Linear transfer voltage to current circuit
10/03/1999CA2392852A1 Low impedance grid-anode interaction region for an inductive output amplifier
09/1999
09/30/1999WO1999049589A1 Switchable path power amplifiers
09/30/1999WO1999049571A1 Buffer circuit
09/30/1999WO1999038255A3 Pwm amplifier
09/30/1999WO1999038254A3 Gain enhancement for operational amplifiers
09/30/1999DE19812069A1 Power amplifier esp. gradient amplifier of magnetic resonance imaging tomograph
09/30/1999CA2324567A1 Buffer circuit
09/29/1999EP0945977A2 Power amplifier
09/29/1999EP0944956A1 Class d amplifier
09/29/1999EP0944954A1 Hybrid transconductors and methods
09/29/1999EP0944953A1 Intermodulation compensation in multi-channel amplifiers
09/29/1999EP0944869A1 High efficiency base current helper
09/28/1999US5960334 Amplifier and portable telephone apparatus using the same
09/28/1999US5959798 Reproducing circuit for a magnetic head having a variable gain amplifier with selective adjustment of the gain during recording and reproduction
09/28/1999US5959501 Class D amplifier with scaled clock and related methods
09/28/1999US5959492 High speed differential driver circuitry and methods for implementing the same
09/28/1999US5959491 Apparatus and method for noise suppression in a balanced modulating device
09/28/1999US5959475 Complementary push-pull CMOS source follower analog video buffer
09/23/1999WO1999048196A1 Optical receiver using variable negative-capacitance circuit
09/22/1999EP0944115A1 High gain amplifier
09/22/1999EP0943225A1 Power supply for microphone
09/22/1999CN1229546A Arrangement and methods for generating radio frequency signal
09/21/1999US5955926 Power amplifier and chip carrier
09/21/1999US5955924 Differential metal-oxide semiconductor (CMOS) push-pull buffer
09/21/1999US5955922 Two-stage fully differential operational amplifier with efficient common mode feed-back circuit
09/21/1999US5955920 Signal feed matrix LPA reduction system and method
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