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)
11/2012
11/21/2012CN102790591A 高频功率放大器 Frequency power amplifier
11/21/2012CN102790590A Power amplifier circuit
11/21/2012CN102790589A Amplifier for measuring 1MHz common mode rejection ratios of high-resistance high-voltage differential probe
11/21/2012CN101997515B Full-differential same-phase parallel amplifying device for acquiring bioelectric signal
11/21/2012CN101969297B Continuous-time common-mode feedback circuit for fully-differential operational amplifier circuit
11/21/2012CN101867349B Radio frequency power amplifier
11/21/2012CN101847627B Semiconductor chip of integrated passive element and power amplifier element
11/21/2012CN101677235B Loop filter, quantizer, analog-digital converter and operational amplifier
11/21/2012CN101662263B Bias circuit used in Ku waveband internally-matched field effect transistor
11/21/2012CN101611544B Balanced amplifying device having a bypass branch
11/20/2012US8315336 Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
11/20/2012US8314660 System and method for effectively implementing a unit Gm cell
11/20/2012US8314659 Controlling amplifier input impedance
11/20/2012US8314658 Power amplifier
11/20/2012US8314655 RF power amplifier and RF power module using the same
11/20/2012US8314654 Multi-band high-efficiency Doherty amplifier
11/15/2012WO2012154430A1 Pre-distortion architecture for compensating non-linear effects
11/15/2012WO2012109161A3 Apparatus and methods for envelope tracking calibration
11/15/2012WO2012104707A3 A voltage-sensing circuit structure for a switching power converter and method for an enhanced fast-scale stability margin of a switching power converter
11/15/2012US20120287740 Sense amplifiers, memories, and apparatuses and methods for sensing a data state of a memory cell
11/15/2012US20120286878 Apparatus and methods for electronic amplification
11/15/2012US20120286877 Power amplifier
11/15/2012US20120286876 Multi-band power amplifier
11/15/2012US20120286875 System providing switchable impedance transformer matching for power amplifiers
11/15/2012US20120286871 Semiconductor device
11/15/2012US20120286870 Integrated circuit of an integrator with enhanced stability and related stabilization method
11/15/2012US20120286869 Current buffer
11/15/2012US20120286868 Class d power amplifier
11/15/2012US20120286861 Doherty Amplifier and Method for Operation Thereof
11/15/2012US20120286860 Systems and Methods for Minimizing Phase Deviation and/or Amplitude Modulation (AM)-to-Phase Modulation (PM) Conversion for Dynamic Range, Radio Frequency (RF) Non-Linear Amplifiers
11/15/2012US20120286859 Input common mode voltage compensation circuit
11/15/2012US20120286365 Switching power supply device and a semiconductor integrated circuit
11/15/2012US20120286143 Semiconductor device and operation method thereof
11/15/2012DE112010005225T5 Verstärkerschaltung und Verfahren zur Signalerfassung Amplifier circuit and method for signal acquisition
11/14/2012EP2523346A1 Amplifier comprising switchable amplifier stages and method thereof
11/14/2012EP2523345A2 Apparatus and methods for high voltage amplification with low noise
11/14/2012EP2523344A1 Device and method to amplify a digital multibit signal
11/14/2012EP2522073A1 Broadband analog radio-frequency components
11/14/2012CN202535313U Input end circuit of on-line monitoring system of SF6 trace moisture density
11/14/2012CN202535312U Small signal capacitance amplifying circuit device
11/14/2012CN202535311U Assembly structure of power amplifier
11/14/2012CN1491066B Heat conduction of audio frequency device
11/14/2012CN102783026A Offset calibration and precision hysteresis for a rail-rail comparator with large dynamic range
11/14/2012CN102783018A Apparatus and method for implementing a differential drive amplifier and a coil arrangement
11/14/2012CN102783017A Amplifier with improved input resistance and controlled common mode
11/14/2012CN102780463A High-voltage cascade device and high-voltage cascade method of linear amplifier
11/14/2012CN102780462A Low-voltage low-power-consumption Class-AB operational trans-conductance amplifier
11/14/2012CN102780461A Offset voltage correction circuit and class D amplifier
11/14/2012CN102780460A PA (power amplifier) overpower protecting method and device
11/14/2012CN102780459A Pseudorandom modulation-demodulation chopping circuit applied to MEMS (micro-electro-mechanical system) reading circuit
11/14/2012CN102394577B Wide-range linear continuous adjustable high-precise current amplifier
11/14/2012CN101924520B Base station power amplifier and method for enhancing efficiency of base station power amplifier
11/14/2012CN101595637B Phase and power calibration in active antennas
11/14/2012CN101421917B Method and device for controlling coupled a plurality of switch
11/14/2012CN101350600B Class d amplifier
11/13/2012US8310314 Signal amplification circuits for receiving/transmitting signals according to input signal
11/13/2012US8310313 Highly efficient class-G amplifier and control method thereof
11/13/2012US8310312 Amplifiers with improved linearity and noise performance
11/13/2012US8310310 Burst mode amplifier
11/13/2012US8310309 Noise-canceling for differential amplifiers requiring no external matching
11/13/2012US8310308 Wide bandwidth class C amplifier with common-mode feedback
11/13/2012US8310307 Amplifying circuit
11/13/2012US8310306 Operational amplifier
11/13/2012US8310305 Tapered-impedance distributed switching power amplifiers
11/13/2012US8310278 Voltage detection device
11/13/2012CA2468625C N-way rf power amplifier with increased backoff power and power added efficiency
11/08/2012WO2012151594A2 Power managent system for pseudo-envelope and average power tracking
11/08/2012WO2012151491A2 Zero-power sampling sar adc circuit and method
11/08/2012WO2012151322A1 Power amplifier with co-existence filter
11/08/2012WO2012151208A1 Wireless communications including distributed feedback architecture
11/08/2012WO2012150420A1 Amplification circuit and reception chain
11/08/2012WO2012150026A1 Power amplifier circuit based on a cascode structure
11/08/2012WO2012088300A3 Power amplifier control circuit
11/08/2012US20120281991 Optical receiver compensating input offset
11/08/2012US20120280755 Flip-chip power amplifier and impedance matching network
11/08/2012US20120280754 Power amplifier with co-existence filter
11/08/2012US20120280753 System and method for adjusting gain frequency response of rf power amplifier
11/08/2012US20120280752 Embedded rf pa temperature compensating bias transistor
11/08/2012US20120280751 Noise Rejecting High-Side Power Switch
11/08/2012US20120280748 Multi-port amplification device that self-compensates in the presence of traffic
11/08/2012US20120280747 Feedback based buck timing of a direct current (dc)-dc converter
11/08/2012US20120280746 Dc-dc converter semiconductor die structure
11/08/2012US20120280669 Dynamic control of frequency compensation for improved over-voltage protection in a switching regulator
11/08/2012DE112011100405T5 CMOS-Leistungsverstärker mit integrierten einmal programmierbaren (OTP) Speichern CMOS power amplifier with built-in one-time programmable (OTP) Save
11/08/2012DE102011100742A1 Signalverarbeitungsanordnung und Signalverarbeitungsverfahren, insbesondere für elektronische Schaltkreise Signal processing apparatus and signal processing method, particularly for electronic circuits
11/08/2012DE102011075314A1 Amplifier, has damping unit attenuating input signal of amplifier, and control circuit generating control signal of attenuator based on comparison result and limiting control signal with maximum control signal
11/08/2012DE102011075312A1 Quasi-breitbandiger Doherty-Verstärker und diesbezügliche Kondensatorschaltung Quasi-wideband Doherty amplifier and related capacitor circuit
11/07/2012EP2521262A1 Galvanic isolation device
11/07/2012EP2521258A1 Power amplifier circuit based on a cascode structure
11/07/2012EP2520942A2 Switched capacitance voltage differential sensing circuit with near infinite input impedance
11/07/2012EP2520019A1 Amplifier component comprising a compensation element
11/07/2012CN202524364U Double operational amplifier band-pass active filter
11/07/2012CN202524361U Power tube complementary power amplifier
11/07/2012CN1992520B Precision triangular wave generator
11/07/2012CN102771047A Bias circuit, LNA, LNB, receiver for communication, transmitter for communication, and sensor system
11/07/2012CN102771046A Amplifying device, signal processing device, wireless communication device, connector mounting structure, and coaxial connector
11/07/2012CN102769436A Inexpensive micro-power-consumption miniaturized signal conditioning module applicable to portable apparatuses
11/07/2012CN102769435A Differential amplifying circuit capable of automatically adjusting amplification factor
11/07/2012CN102769434A Flip-chip power amplifier and impedance matching network
11/07/2012CN102769433A Radio-frequency power amplifier power control circuit utilizing NMOS (N-channel metal oxide semiconductor field-effect transistor) regulating tube
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