| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/09/2011 | CN201742374U Track-to-track operational amplifier |
| 02/09/2011 | CN201742373U Digital bias system of radio frequency power amplifier |
| 02/09/2011 | CN1729637B A transmitter and a method of calibrating power in signals output from a transmitter |
| 02/09/2011 | CN101971490A Multi-source spatial power amplifier |
| 02/09/2011 | CN101971489A A low-power piezoelectric amplifier and method thereof |
| 02/09/2011 | CN101971488A Differential current output driver with overvoltage protection |
| 02/09/2011 | CN101971487A System and method of enabling a signal processing device in a relatively fast manner to process a low duty cycle signal |
| 02/09/2011 | CN101969298A High-power travelling wave tube amplifier for broadband |
| 02/09/2011 | CN101969297A Continuous-time common-mode feedback circuit for fully-differential operational amplifier circuit |
| 02/09/2011 | CN101969296A Power line carrier communication-based impedance adaptive power amplifier circuit and realization method thereof |
| 02/09/2011 | CN101414807B Signal amplification circuit |
| 02/09/2011 | CN101388651B Receiver of high speed digital interface |
| 02/09/2011 | CN101359899B Thin film semiconductor device and manufacturing method |
| 02/09/2011 | CN101273530B Methods and apparatus for implementing and/or using amplifiers and/or for performing various amplification related operations |
| 02/09/2011 | CN101171744B System and method for providing an input to a distributed power amplifying system |
| 02/09/2011 | CN101098126B Regulated cascode circuits and cmos analog circuits include the same |
| 02/08/2011 | US7884673 Wideband low-noise amplifier |
| 02/08/2011 | US7884672 Operational amplifier and method for amplifying a signal with shared compensation components |
| 02/08/2011 | US7884671 Low power operational amplifier |
| 02/08/2011 | US7884670 Class D amplifier |
| 02/08/2011 | US7884669 Broadband amplifying device |
| 02/08/2011 | US7884668 Integrated doherty type amplifier arrangement with high power efficiency |
| 02/08/2011 | US7884667 Pulse area modulation and high-efficiency linear power amplifier system using the same |
| 02/03/2011 | WO2011014849A2 Bias current monitor and control mechanism for amplifiers |
| 02/03/2011 | WO2011013420A1 Power amplifying device, power amplifying method and storage medium |
| 02/03/2011 | WO2011013403A1 Transfer gate circuit, and power combining circuit, power amplifying circuit, transmission device, and communication device using the transfer gate circuit |
| 02/03/2011 | WO2011012473A1 Dual use transistor |
| 02/03/2011 | WO2010141193A3 Transimpedance amplifier with distributed control of feedback line |
| 02/03/2011 | US20110028089 Amplifying circuit, semiconductor integrated circuit, wireless transmission system, and communication apparatus |
| 02/03/2011 | US20110026347 Differential Sense Amplifier |
| 02/03/2011 | US20110026346 Self-timed low power sense amplifier |
| 02/03/2011 | US20110025655 Operational amplifier and semiconductor device using the same |
| 02/03/2011 | US20110025654 Differential amplifier circuit, data line driver using the same, and liquid crystal display apparatus |
| 02/03/2011 | US20110025423 Millimeter-wave monolithic integrated circuit amplifier with opposite direction signal paths and method for amplifying millimeter-wave signals |
| 02/03/2011 | US20110025422 Power amplifier bias current monitor and control mechanism |
| 02/03/2011 | US20110025419 Differential amplifier with offset voltage trimming |
| 02/03/2011 | US20110025418 Current to voltage converter |
| 02/03/2011 | US20110025417 Signal Processing Circuit |
| 02/03/2011 | US20110025416 Differential amplifier |
| 02/03/2011 | US20110025415 Digital Modulated RF Power Amplifier with Impedance Compensation Circuit |
| 02/03/2011 | US20110025412 Amplifier |
| 02/03/2011 | US20110025379 Latched comparator and methods therefor |
| 02/03/2011 | US20110025280 Regulator having phase compensation circuit |
| 02/03/2011 | US20110024608 Avalanche impact ionization amplification devices |
| 02/03/2011 | US20110024305 Differential Amplifier Sensor Architecture for Increased Sensing Selectivity |
| 02/03/2011 | DE102009036003A1 Integrator und Leistungsschalter mit Integrator Integrator and circuit breakers with integrator |
| 02/03/2011 | DE10000224B4 Leistungsverstärker mit einer Schutzschaltung Power amplifier with a protection circuit |
| 02/02/2011 | EP2280479A1 Class H Amplifier |
| 02/02/2011 | CN201733428U Audio output circuit and mobile terminal with the same |
| 02/02/2011 | CN201733393U Bidirectional amplifier for alteration of cable television Ethernet coaxial cable transmission networks |
| 02/02/2011 | CN201733281U Power synthesis circuit of radiofrequency power amplifier |
| 02/02/2011 | CN201733280U Power amplifier with RF (radio frequency) CASCODE structure and increased linearity as well as power attaching efficiency |
| 02/02/2011 | CN201733278U Output matching circuit for increasing power added efficiency and linearity |
| 02/02/2011 | CN1960175B Method and apparatus to control output power of a power amplifier and audio player having the same |
| 02/02/2011 | CN101965682A Multi-mode power amplifiers |
| 02/02/2011 | CN101964661A Comparator for pipeline type analog-digital converter and related signal sampling method |
| 02/02/2011 | CN101964654A System and method for high-order asymmetric correction |
| 02/02/2011 | CN101964632A Power-reinforced electronic device |
| 02/02/2011 | CN101552551B Radio frequency ion power supply |
| 02/02/2011 | CN101404480B Single slice integrated anti-sound break class D audio power amplifier |
| 02/02/2011 | CN101388595B Pwm pulse controller |
| 02/02/2011 | CN101297477B Transconductance device |
| 02/02/2011 | CN101013562B Output circuit and display device using the same |
| 02/01/2011 | US7880549 Transistor including intrinsic harmonic trap |
| 02/01/2011 | US7880548 Headphone amplifier circuit |
| 02/01/2011 | US7880547 Systems and methods for power amplifiers with voltage boosting multi-primary transformers |
| 02/01/2011 | US7880546 Amplifier and the method thereof |
| 02/01/2011 | US7880544 Differential amplifier and applications thereof |
| 02/01/2011 | US7880541 Low noise, low power instrumentation amplifier |
| 02/01/2011 | US7880539 Power amplifier and liquid jet printing apparatus |
| 02/01/2011 | US7880537 Operational amplifier, line driver, and liquid crystal display device |
| 02/01/2011 | US7880511 MOS integrated circuit and electronic equipment including the same |
| 01/27/2011 | WO2011011756A1 Split-biased current scalable buffer |
| 01/27/2011 | WO2011011754A1 Multi-mode low noise amplifier with transformer source degeneration |
| 01/27/2011 | WO2011010513A1 Pop sound reduction circuit and audio circuit having such pop sound reduction circuit for use in audio amplifier |
| 01/27/2011 | WO2011010443A1 Drive device |
| 01/27/2011 | WO2011009905A1 Microwave switching structure having a distributed amplifier with an input for feeding a test signal therein |
| 01/27/2011 | WO2010096705A3 Systems and methods for driving high power stages using lower voltage processes |
| 01/27/2011 | US20110020011 Amplifier, Optical Receiver Circuit, Optical Module and Data Exchange System |
| 01/27/2011 | US20110019728 System and method of altering a pwm carrier power spectrum |
| 01/27/2011 | US20110018639 Power amplifier bias circuit |
| 01/27/2011 | US20110018638 Split-biased current scalable buffer |
| 01/27/2011 | US20110018637 Radiofrequency signal power amplification method and device |
| 01/27/2011 | US20110018636 Signal amplification apparatus with advanced linearization |
| 01/27/2011 | US20110018635 Multi-mode low noise amplifier with transformer source degeneration |
| 01/27/2011 | US20110018634 Method and Apparatus for Systematic and Random Variation and Mismatch Compensation for Multilevel Flash Memory Operation |
| 01/27/2011 | US20110018633 Operational amplifier having dc offset cancellation capability |
| 01/27/2011 | US20110018629 Reference voltage supply circuit |
| 01/27/2011 | US20110018628 Dynamic bias supply devices |
| 01/27/2011 | US20110018624 Integrated power detector with temperature compensation for fully-closed loop control |
| 01/26/2011 | EP2278706A2 High linearity variable gain amplifier |
| 01/26/2011 | EP2278704A1 Radiofrequency signal power amplifying method and apparatus. |
| 01/26/2011 | EP2277261A1 Amplifier design with biasing and power control aspects |
| 01/26/2011 | EP1149466B1 Amplifier |
| 01/26/2011 | CN201726521U Vehicle-mounted DVD navigation audio-visual device for raising audio frequency |
| 01/26/2011 | CN201726373U RF power amplifier in push-pull structure |
| 01/26/2011 | CN201726372U Push-pull type radio-frequency power amplifier with improved linearity |
| 01/26/2011 | CN201726371U Push-pull type radio-frequency power amplifier with improved linearity and efficiency |
| 01/26/2011 | CN201726370U Radio-frequency power amplifier |
| 01/26/2011 | CN201726369U Radio-frequency power amplifier circuit with function of adjusting pre-distortion |