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)
02/2014
02/26/2014CN203457113U Ultra-wideband millimeter wave amplifier
02/26/2014CN203457112U Power distribution synthesizer for flood discharge alarm system
02/26/2014CN203457111U Class-AB/inverse class-F multi-mode power amplifier based on high-electron-mobility gallium nitride transistor
02/26/2014CN203457110U High-efficiency variable-gain class-E radio frequency power amplifier
02/26/2014CN203457108U Adaptive bias circuit applicable to CMOS (Complementary Metal Oxide Semiconductor) radio frequency power amplifier and amplifier
02/26/2014CN103609019A Isolated zero degree reactive radio frequency high power combiner
02/26/2014CN103607177A Circuit for solving inconsistency of gains among batches of chips
02/26/2014CN103607176A Audio power amplifier power supply circuit control method, audio power amplifier power supply circuit and audio power amplifier circuit
02/26/2014CN103607175A Radio frequency power amplifier device based on signal extraction counteraction
02/26/2014CN102509840B High-isolation radial power synthesis amplifier with broadband air micro-strips
02/26/2014CN102364873B Circuit and method for improving coupling directionality
02/26/2014CN102231621B Hot backup method and hot backup device for multi-channel power amplifier
02/25/2014US8659359 RF power transistor circuit
02/25/2014US8659354 Power-amplifier arrangement
02/25/2014US8659353 Asymmetric multilevel outphasing architecture for RF amplifiers
02/25/2014US8659352 Power amplifier
02/25/2014US8659351 Electronic circuit for driving a switching amplifier
02/25/2014US8659321 Semiconductor device having sense amplifier
02/25/2014US8658958 Light sensing circuit having programmable current source and method thereof
02/23/2014CA2824678A1 Switching mode amplifier operation
02/20/2014WO2014028036A1 Method and apparatus for high efficiency, high dynamic range digital rf power amplification
02/20/2014WO2014027686A1 Power amplifier and transmitter
02/20/2014WO2014027239A2 Switched continuous time linear equalizer with integrated sampler
02/20/2014WO2014004002A3 Electronic circuit for adjusting an offset of a differential amplifier
02/20/2014US20140052126 Electrosurgical devices and methods
02/20/2014US20140051374 Radio-frequency transmitter and amplifier
02/20/2014US20140050337 Personal computer to output audio in a non-operative state
02/20/2014US20140050335 Very High Fidelity Audio Amplifier
02/20/2014US20140049326 Coupled inductor and calibrated complementary low noise amplifiers
02/20/2014US20140049325 On-chip millimeter wave lange coupler
02/20/2014US20140049324 Linc power amplifier
02/20/2014US20140049320 Power amplifier circuit
02/20/2014US20140049319 Amplification circuit and reception chain
02/20/2014US20140049318 Method and Apparatus for High Efficiency, High Dynamic Range Digital RF Power Amplification
02/20/2014DE102013013521A1 Leistungsverstärkerschaltung A power amplifier circuit
02/19/2014EP2699019A1 Digital speaker system
02/19/2014CN203445886U Plastic optical fiber receiver with double photodiode difference input
02/19/2014CN203445844U Mbus (meter bus) decoding circuit
02/19/2014CN203445843U Low-power-loss input circuit
02/19/2014CN203445842U Power amplifier circuit capable of automatically regulating linearity
02/19/2014CN203445841U Power amplifier circuit capable of improving linearity
02/19/2014CN1758545B 通信终端 Communication terminal
02/19/2014CN103597742A Power amplifier modules including related systems, devices, and methods
02/19/2014CN103597741A Apparatus and methods for envelope tracking
02/19/2014CN103595362A Broadband same-phase amplifying circuit based on random waveform generation
02/19/2014CN103595361A 放大器 Amplifiers
02/19/2014CN103595360A Operational amplifier with Miller compensation structure
02/19/2014CN103595359A 0.1-5GHz CMOS (complementary metal oxide semiconductor) power amplifier
02/19/2014CN103595358A Radio frequency power amplifier and warning message saving method and device thereof
02/19/2014CN103595357A 0.1-1.2GHz CMOS (complementary metal oxide semiconductor) ultra-wideband radiofrequency power amplifier
02/19/2014CN102047555B Modified distributed amplifier to improve low frequency efficiency and noise figure
02/18/2014US8653907 Resonated bypass capacitor for enhanced performance of a microwave circuit
02/18/2014US8653896 Class-AB power amplifier
02/18/2014US8653895 Circuit with reference source to control the small signal transconductance of an amplifier transistor
02/18/2014US8653894 Push-pull amplifier having inductive common mode decoupling
02/18/2014US8653893 Output circuit, data driver circuit and display device
02/18/2014US8653890 Amplifier calibration
02/18/2014US8653889 Doherty amplifier having compact output matching and combining networks
02/18/2014US8653858 Signal operating circuit
02/13/2014WO2014026030A1 Multi-cascode amplifier bias techniques
02/13/2014WO2013164088A3 Circuit arrangement with tunable transconductance
02/13/2014US20140043102 Multi-cascode amplifier bias techniques
02/13/2014US20140043101 Method and Apparatus for a Class-E Load Tuned Beamforming 60 GHz Transmitter
02/13/2014US20140043100 Operational amplifier with improved frequency compensation
02/13/2014DE10337285B4 Verstärkeranordnung Amplifier arrangement
02/13/2014DE102009040543B4 Schaltung und Verfahren zum Trimmen einer Offsetdrift Circuit and method for trimming an offset drift
02/13/2014DE102007044942B4 Verstärkervorrichtung mit einem Signalverstärker und einem Gleichanteilverstärker Amplifier device with a signal amplifier and a DC component amplifier
02/12/2014EP2696651A1 Base station radio frequency system and protection method of radio frequency power amplifier
02/12/2014EP2696499A1 Power amplifier for mobile telecommunications
02/12/2014EP2695296A2 Non foster circuit
02/12/2014EP2695295A1 Power supply with tickle pulse injection
02/12/2014EP2695294A1 Systems and methods of rf power transmission, modulation, and amplification
02/12/2014CN203434944U Low-power communication audio signal amplifier
02/12/2014CN203434943U Multifunctional intelligent integrated circuit power amplification system
02/12/2014CN203434942U Miniaturized wall type power amplifier
02/12/2014CN203434941U Power amplifier with standby function
02/12/2014CN203434940U 射频功率放大器系统 RF power amplifier system
02/12/2014CN103581817A Intelligent switching method for PA (power amplifier) system
02/12/2014CN103580628A Multiple-output transconductance amplifier based instrumentation amplifier
02/12/2014CN103580627A Amplifier circuit, method and mobile communication device
02/12/2014CN103580626A Differential stacked output stage for power amplifiers
02/12/2014CN103580625A Conductance-change type power amplifier
02/12/2014CN103580624A Radio-frequency signal amplification circuit
02/12/2014CN103580623A Radiofrequency power amplifier device and radiofrequency power amplifying method
02/12/2014CN103580622A 信号放大器 Signal Amplifiers
02/12/2014CN103580619A Power amplifying device and linear adjuster
02/12/2014CN103580610A Multi-mode power amplifier and corresponding mobile communication terminal
02/12/2014CN102509836B Resistor diaphragm waveguide traveling wave power synthesis amplifier
02/12/2014CN101640829B Digital preamplifier for MEMS microphone
02/11/2014US8649537 Drive device
02/11/2014US8648660 Amplifier with non-linear current mirror
02/11/2014US8648655 Modulator and an amplifier using the same
02/06/2014WO2014022421A1 Method and apparatus for constant output impedance, variable pre-emphasis drive
02/06/2014WO2014021932A1 Broadband high efficiency amplifier system and a method of constructing high power amplitude modulated rf signal
02/06/2014WO2014019071A1 Extended bandwidth digital doherty transmitter
02/06/2014WO2012137290A9 Bandwidth-variable amplifier
02/06/2014US20140037113 Preamplifier circuit for a microelectromechanical capacitive acoustic transducer
02/06/2014US20140037112 Digital condenser microphone having preamplifier with variable input impedance and method of controlling variable input impedance of preamplifier
02/06/2014US20140035681 Multi-frequency multi-standard reconfigurable doherty amplifier
02/06/2014US20140035680 Power Amplifier Apparatus and Power Amplifier Circuit
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