| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 08/19/2009 | CN101510762A Low power supply voltage whole-differential rail-to-rail amplifying circuit |
| 08/19/2009 | CN101510761A Operational amplifier circuit and display apparatus using the same |
| 08/19/2009 | CN101510760A High efficiency power amplifier |
| 08/19/2009 | CN101510759A Design method for variable load closed-loop E genus amplifier |
| 08/19/2009 | CN100531166C Method and system for switching mode power amplification |
| 08/19/2009 | CN100530953C Automatic control method for RF amplifier gain based on varying electrical bridge principle |
| 08/19/2009 | CN100530952C An amplifier gain control circuit of wireless transceiver |
| 08/19/2009 | CN100530951C Delay mismatched feed forward amplifier system using penalties and floors for control |
| 08/19/2009 | CN100530950C Differential amplifier with cascode control |
| 08/19/2009 | CN100530949C Multi-mode power amplifier and method for amplifying modulation signal |
| 08/19/2009 | CN100530948C Digital amplifier |
| 08/19/2009 | CN100530943C Blind linearization using cross-modulation |
| 08/19/2009 | CN100530021C Low voltage CMOS bandgap reference |
| 08/19/2009 | CN100529675C Double passage differential anti-jamming current amplification circuit |
| 08/19/2009 | CN100529673C Series bridge circuit |
| 08/18/2009 | US7576619 Integrated circuit arrangement |
| 08/18/2009 | US7576613 Regulated cascode circuits and CMOS analog circuits including the same |
| 08/18/2009 | US7576612 Power amplifier |
| 08/18/2009 | US7576611 Systems and methods for high frequency electronic power conversion and amplification |
| 08/18/2009 | US7576610 Operational amplifier of class AB |
| 08/18/2009 | US7576609 Preamplifier for receiver and method thereof |
| 08/18/2009 | US7576608 Amplifier circuit with voltage interpolation function |
| 08/18/2009 | US7576606 Digital PWM amplifier having a low delay corrector |
| 08/18/2009 | US7576605 Low power output stage |
| 08/18/2009 | US7576604 All-digital class-D audio amplifier |
| 08/18/2009 | US7576594 Method and device for reducing influence of early effect |
| 08/18/2009 | US7576574 Constant current circuit and light emitting diode drive circuit |
| 08/13/2009 | WO2009100387A1 Lna having a post-distortion mode and a high-gain mode |
| 08/13/2009 | WO2009100381A1 Multi-mode power amplifiers |
| 08/13/2009 | WO2009099486A1 Radio frequency power delivery system |
| 08/13/2009 | WO2009099056A1 Envelope tracking power supply circuit and high-frequency amplifier including envelope tracking power supply circuit |
| 08/13/2009 | WO2009098609A1 Load detector for a switching device |
| 08/13/2009 | WO2009061817A3 Apparatus and method for low power rail-to- rail operational amplifier |
| 08/13/2009 | WO2009055035A3 High sensitivity two-stage amplifier |
| 08/13/2009 | US20090201237 Operational amplifier circuit and display apparatus using the same |
| 08/13/2009 | US20090201089 High frequency power amplifier |
| 08/13/2009 | US20090201088 Measuring Load Impedance Of An Amplifier Driving A Variable Load |
| 08/13/2009 | US20090201087 Differential input amplifier |
| 08/13/2009 | US20090201086 Current sense amplifier with extended common mode voltage range |
| 08/13/2009 | US20090201083 Amplifier device and system using the device |
| 08/12/2009 | EP2088671A2 Amplifier device and system using the device |
| 08/12/2009 | EP2087588A1 Active distributed signal splitting apparatus |
| 08/12/2009 | EP2087587A1 Power amplifier |
| 08/12/2009 | EP2087586A1 Switched modulation of a radio-frequency amplifier |
| 08/12/2009 | EP2087549A1 Merged low-noise amplifier and balun |
| 08/12/2009 | EP2013630A4 Systems and methods of rf power transmission, modulation, and amplification |
| 08/12/2009 | EP1673857B1 Data signal amplifier and processor with multiple signal gains for increased dynamic signal range |
| 08/12/2009 | EP1646153B1 Activation signal output circuit |
| 08/12/2009 | EP1262017B1 Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier |
| 08/12/2009 | EP1245078B9 Power amplifier and a method for operating a power amplifier |
| 08/12/2009 | CN201290094Y Wcdma低噪声放大器装置 Low noise amplifier means Wcdma |
| 08/12/2009 | CN101507111A Multi-function passive frequency mixer |
| 08/12/2009 | CN101507110A Switch-less bidirectional amplifier |
| 08/12/2009 | CN101507109A Circuits and methods for implementing power amplifiers for millimeter wave applications |
| 08/12/2009 | CN101507108A Methods and apparatuses for providing input voltages to power amplifiers |
| 08/12/2009 | CN101507107A Filter-tracking and control method |
| 08/12/2009 | CN101507105A Method and apparatus for controlling a selectable voltage audio power output stage |
| 08/12/2009 | CN101505141A Reference buffer |
| 08/12/2009 | CN101505140A Trans-impedance amplifier with low noise and high gain-bandwidth product |
| 08/12/2009 | CN101505097A Voltage regulator with compensation and the method thereof |
| 08/12/2009 | CN101504558A Semiconductor circuits capable of mitigating unwanted effects caused by input signal variations |
| 08/11/2009 | US7573336 Power amplifier and multistage amplification circuit including same |
| 08/11/2009 | US7573334 Bias control circuitry for amplifiers and related systems and methods of operation |
| 08/11/2009 | US7573333 Amplifier and driving circuit using the same |
| 08/11/2009 | US7573332 Amplifier with active inductor |
| 08/11/2009 | US7573331 Low power low noise amplifier for a magnetoresistive sensor |
| 08/11/2009 | US7573330 High efficiency digital power amplifier |
| 08/11/2009 | US7573328 Power amplifier |
| 08/11/2009 | US7573016 Amplification type solid-state imaging device |
| 08/06/2009 | WO2009097372A1 Differential amplifier with accurate input offset voltage |
| 08/06/2009 | WO2009097353A1 Method and apparatus for reducing intermodulation distortion in an electronic device having an amplifier circuit |
| 08/06/2009 | WO2009096132A1 Power amplification device and communication device |
| 08/06/2009 | WO2009095331A1 Signal conditioner with suppression of interfering signals |
| 08/06/2009 | WO2009079468A3 Amplifier with dynamic bias |
| 08/06/2009 | WO2009059185A3 Differential amplifier system |
| 08/06/2009 | WO2009040697A3 Automatic common-mode rejection calibration |
| 08/06/2009 | WO2009037603A3 Polar modulation based transmitter with switching mode power amplifiers |
| 08/06/2009 | US20090195433 Multistage amplifier and a method of settling the multistage amplifier |
| 08/06/2009 | US20090195334 High frequency module provided with power amplifier |
| 08/06/2009 | US20090195320 Implementing layout of integrated circuit containing operational amplifier |
| 08/06/2009 | US20090195319 Large Time Constant Steering Circuit and Instrumentation Amplifier Implementing Same |
| 08/06/2009 | US20090195318 Self Regulating Biasing Circuit |
| 08/06/2009 | US20090195317 Multi-Mode High Efficiency Linear Power Amplifier |
| 08/06/2009 | US20090195316 Re-configurable low noise amplifier utilizing feedback capacitors |
| 08/06/2009 | US20090195315 Sample-and-hold amplifiers |
| 08/06/2009 | US20090195314 Device and method for amplifying pulsed rf signals |
| 08/06/2009 | US20090195313 Boosted tail-current circuit |
| 08/06/2009 | US20090195312 Differential amplifier |
| 08/06/2009 | US20090195311 Independent dominant pole compensation of two loops using one compensation element |
| 08/06/2009 | US20090195310 Lna having a post-distortion mode and a high-gain mode |
| 08/06/2009 | US20090195307 Multiple-path power amplifier |
| 08/06/2009 | US20090194673 Image detection apparatus |
| 08/06/2009 | DE102008006435A1 Vorrichtung und Verfahren für eine verbesserte Einschwingzeit in Systemen mit Multiplexeingang An apparatus and method for improved settling time in systems with multiplexed input |
| 08/06/2009 | DE102007021254B4 Buffertreiber Buffer Driver |
| 08/06/2009 | DE102005018344B4 Herstellungsverfahren für rekonfigurierbare Verbindung Production method of compound reconfigurable |
| 08/05/2009 | EP2086111A2 Large time constant steering circuit and instrumentation amplifier implementing same |
| 08/05/2009 | EP2086109A1 Differential amplifier |
| 08/05/2009 | EP2086108A1 Transconductance amplifier |
| 08/05/2009 | EP2084812A2 Amplifier circuit |
| 08/05/2009 | EP1652294B1 Cartesian loop transmitter and method of adjusting an output level of such transmitter |