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)
09/2012
09/12/2012CN101527544B Device and method for identifying inverse characteristic of nonlinear system, power amplifier and predistorter thereof
09/11/2012US8264282 Amplifier
09/11/2012US8264281 Low-noise amplifier with tuned input and output impedances
09/11/2012US8264279 Electronic circuit
09/11/2012US8264278 Amplifier
09/11/2012US8264277 Differential amplifier circuit
09/11/2012US8264276 Low-noise amplifier
09/11/2012US8264275 Amplifier arrangement and method for signal amplification
09/11/2012US8264272 Digital control interface in heterogeneous multi-chip module
09/11/2012US8264253 Transmitter swing control circuit and method
09/11/2012US8263927 Circuit and method for temperature and process independent transimpedance amplifier arrangement
09/11/2012US8263926 Photoelectric conversion device and manufacturing method thereof
09/07/2012WO2012118921A2 Power supply controller for multi-gain step rf power amplifier
09/07/2012WO2012118217A1 Power supply device and control method
09/07/2012WO2012117757A1 Bias control circuit
09/07/2012WO2012117072A2 Amplifier module
09/07/2012WO2012116954A1 Two-stage class ab operational amplifier
09/07/2012WO2012116721A1 Hearing aid and a method of driving an output stage
09/07/2012WO2012116720A1 Hearing aid with an h-bridge output stage and a method of driving an output stage
09/07/2012WO2012087924A3 Switched-capacitance gain amplifier with improved input impedance
09/07/2012CA2828266A1 Hearing aid and a method of driving an output stage
09/07/2012CA2828263A1 Hearing aid with an h-bridge output stage and a method of driving an output stage
09/06/2012US20120224653 Composite power amplifier, transmitter, and composite-power-amplifier control method
09/06/2012US20120224443 Sense amplifier with shielding circuit
09/06/2012US20120224442 Circuit with remote amplifier
09/06/2012US20120223777 RF Power Amplifier Circuit With Mismatch Tolerance
09/06/2012US20120223776 Power supply controller for a multi-gain step rf power amplifier
09/06/2012US20120223775 Doherty amplifier
09/06/2012US20120223774 Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry
09/06/2012US20120223773 Linear mode and non-linear mode quadrature pa circuitry
09/06/2012US20120223772 Multilevel class-d amplifier
09/06/2012DE102011012927A1 Verstärkermodul Amplifier module
09/06/2012DE102004017165B4 Schaltung zur Erhöhung der Transitfrequenz eines Verstärkerelements Circuit for increasing the gain-bandwidth product of an amplifier element
09/05/2012EP2495873A1 Amplification circuit
09/05/2012EP2495872A1 Two-stage class AB operational amplifier
09/05/2012EP2495870A1 Mixing circuit
09/05/2012EP2494690A1 Multi-port amplification device that self-compensates in the presence of traffic
09/05/2012EP2251975B1 Electronic device with data-rate-dependent power amplifier bias
09/05/2012CN202424631U Output amplification circuit for PNP and NPN selection input switching values
09/05/2012CN202424630U Amplitude-frequency equalization power amplifier
09/05/2012CN202424629U Trunking communication power amplifier
09/05/2012CN202424627U Grid voltage temperature compensating circuit of radio frequency power amplifier
09/05/2012CN202424625U Power amplifying circuit in multi-carrier communication system of power line
09/05/2012CN202424624U Monolithic integrated power amplifier chip
09/05/2012CN102656800A Acoustic apparatus, acoustic system, and audio signal control method
09/05/2012CN102656799A Circuit and method for reducing noise in class D amplifiers
09/05/2012CN102656798A Instrumentation amplifier calibration method, system and apparatus
09/05/2012CN102656797A Amplifier assembly having controlled return of power loss
09/05/2012CN102655395A Amplifier circuit with cross wiring of direct-current signals and microwave signals
09/05/2012CN102655394A Amplifier circuit with cross wiring of direct-current signals and microwave signals
09/05/2012CN101938255B Low-power consumption true logarithmic amplifier
09/05/2012CN101860330B Amplifying unit, power amplifier and transmitter
09/05/2012CN101814903B Tunable ferro-electric filter
09/05/2012CN101741327B Compensated operational amplification circuit and related method
09/05/2012CN101729027B High gain amplifier circuit
09/05/2012CN101553723B High speed preamplifier circuit, detection electronics, and radiation detection systems therefrom
09/05/2012CN101471723B Bidirectional dynamic amplification method and apparatus for TDD system
09/05/2012CN101383118B Display unit and display panel driver
09/05/2012CN101369802B Closed-loop D-class power amplifier and its control method
09/05/2012CN101345334B Printing antenna system of vehicle rear window glass
09/05/2012CN101090256B High-impedance level-shifting device, system and method
09/04/2012US8258875 DC-DC conversion for a power amplifier using the RF input
09/04/2012US8258874 Dual-mode control of a power generator
09/04/2012US8258873 Constructive feedback traveling wave device and method
09/04/2012US8258869 Low noise amplifier with current bleeding branch
09/04/2012US8258868 Differential input for ambipolar devices
09/04/2012US8258867 Front-end equalizer and amplifier circuit
09/04/2012US8258866 Power amplifiers
09/04/2012US8258865 Signal generating apparatus and method thereof
09/04/2012US8258452 Light receiving circuit
09/04/2012US8258451 Image capture system including multipurpose photodetector
08/2012
08/30/2012WO2012114867A1 Constant envelope signal generation circuit, and magnification circuit, transmission device, and communication device using same
08/30/2012WO2012114836A1 Transmitter, voltage control program and recording medium having voltage control program recorded thereon
08/30/2012WO2012114683A1 Wireless communication device
08/30/2012WO2010064791A3 Apparatus and method for controlling gain of polar transmitter
08/30/2012US20120220089 Compound semiconductor device and method for manufacturing the same
08/30/2012US20120218783 Compound semiconductor device and method for manufacturing the same
08/30/2012US20120218047 Vertical ballast technology for power hbt device
08/30/2012US20120218046 Class-ab power amplifier
08/30/2012US20120218045 Class-c power amplifier
08/30/2012US20120218044 Three-Stage GaN HEMT Doherty Power Amplifier for High Frequency Applications
08/30/2012US20120218041 Amplifier circuit
08/30/2012US20120218040 Class-ab power amplifier
08/30/2012US20120218037 Calibration of signal processing apparatus
08/30/2012US20120217381 Variable gain amplifier compensating frequency response thereof
08/30/2012DE102011012622A1 Hochfrequenzleistungsvervielfacherlösung Hochfrequenzleistungsvervielfacherlösung
08/29/2012EP2493070A2 Voltage adaption unit and method of use thereof
08/29/2012EP2493008A1 Transmission line, impedance transformer, integrated circuit mounted device, and communication device module
08/29/2012EP2491650A1 Circuit and method for reducing noise in class d amplifiers
08/29/2012CN202406089U Week signal amplifying circuit
08/29/2012CN102652393A Amplifier circuit with step gain
08/29/2012CN102652392A Semiconductor integrated circuit and tuner system provided with same
08/29/2012CN102651635A Fully differential power current amplifier
08/29/2012CN102651634A Joint adaptive bias point adjustment and digital pre-distortion for power amplifier
08/29/2012CN102651393A Compound semiconductor device and method for manufacturing the same
08/29/2012CN101841240B Power supply converter and error amplifier
08/29/2012CN101807892B Line driver with function of automatically adjusting output impedance
08/29/2012CN101546985B Amplifying element and manufacturing method thereof
08/29/2012CN101400009B Microphone circuit
08/29/2012CN101395793B Hybrid feedback controlled oscillation modulator and switching power amplifier system
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