| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 07/02/2009 | US20090167438 Harmonic tuned doherty amplifier |
| 07/02/2009 | US20090167437 Common mode feedback circuit supporting dual data rate, programmable gain amplifier having the same, and image sensor having the programmable gain amplifier |
| 07/02/2009 | US20090167436 High-efficiency switching power amplifiers with low harmonic distortion |
| 07/02/2009 | US20090167434 Device, system, and method of semi-doherty outphasing amplification |
| 07/02/2009 | US20090167432 Instrumentation amplification with input offset adjustment |
| 07/02/2009 | US20090167431 Class D Amplifier Having PWM Circuit with Look-up Table |
| 07/02/2009 | US20090167427 Power circuit and power amplifier and base station device using the same |
| 07/02/2009 | US20090167407 Operational amplifier and integrating circuit |
| 07/02/2009 | US20090167361 High-speed amplitude detector with a digital output |
| 07/02/2009 | DE102008025347A1 Elektronischer Verstärker Electronic amplifier |
| 07/02/2009 | CA2710450A1 Monolithically integrated antenna and receiver circuit for the detection of terahertz waves |
| 07/02/2009 | CA2708503A1 Multiport amplifiers in communications satellites |
| 07/01/2009 | EP2075910A1 Instrumentation amplification with input offset adjustment |
| 07/01/2009 | EP2075909A2 Current sampling method and circuit |
| 07/01/2009 | EP2074694A1 Automatic zero voltage switching mode controller |
| 07/01/2009 | EP1476949B1 Power amplification apparatus of portable terminal |
| 07/01/2009 | CN201266910Y Gallbladder prime amplifier |
| 07/01/2009 | CN201266909Y Electromagnetic interference resistance circuit for D-genus audio power amplifier |
| 07/01/2009 | CN201266908Y D-genus power amplification circuit |
| 07/01/2009 | CN101473532A Amplifying circuit and method |
| 07/01/2009 | CN101473531A Integrated implementation of a voltage boost follower and method therefor |
| 07/01/2009 | CN101471634A Output stage circuit and operational amplifier applying the same |
| 07/01/2009 | CN101471633A Output stage bias circuit and operational amplifier applying the same |
| 07/01/2009 | CN101471632A Self-bias low-voltage operation transconductance amplifier circuit with controllable loop gain |
| 07/01/2009 | CN101471631A CMOS audio operational amplifier |
| 07/01/2009 | CN101471630A Whole differential amplifier |
| 07/01/2009 | CN101471629A Amplifier circuit |
| 07/01/2009 | CN101471628A AB genus amplifier |
| 07/01/2009 | CN100508376C Operation amplifier phase reversion and overflowing suppression circuit |
| 07/01/2009 | CN100508375C Differential amplifier circuit and method for controlling base bais voltage of differential amplifier circuit |
| 07/01/2009 | CN100508374C Current-mode instrumentation amplifier |
| 07/01/2009 | CN100508373C 数字放大器 Digital Amplifier |
| 07/01/2009 | CN100508372C Class D amplifier |
| 07/01/2009 | CN100508371C Power level controlling of first amplification stage for an integrated RF power amplifier |
| 06/30/2009 | US7554866 Circuit and method of controlling input/output sense amplifier of a semiconductor memory device |
| 06/30/2009 | US7554411 Wireless transmitter having multiple programmable gain amplifiers (PGAs) with tuned impedance to provide substantially linear response |
| 06/30/2009 | US7554410 Power amplifier |
| 06/30/2009 | US7554408 Apparatus and method for asymmetric charge pump for an audio amplifier |
| 06/30/2009 | US7554407 Multi-mode power amplifier with low gain variation over temperature |
| 06/30/2009 | US7554406 Spatially distributed amplifier circuit |
| 06/30/2009 | US7554405 Adaptive biasing input stage and amplifiers including the same |
| 06/30/2009 | US7554404 Method and system for a low noise amplifier with tolerance to large inputs |
| 06/30/2009 | US7554403 Gainboost biasing circuit for low voltage operational amplifier design |
| 06/30/2009 | US7554402 High CMR amplifier topology |
| 06/30/2009 | US7554401 Power amplifier |
| 06/30/2009 | US7554400 Integrator and error amplifier |
| 06/30/2009 | US7554399 Protection circuit and method for protecting switching power amplifier circuits during reset |
| 06/30/2009 | US7554398 Integration improvement technique for switching amplifiers |
| 06/30/2009 | US7554394 Power amplifier circuit |
| 06/30/2009 | US7554392 Multiple output power mode amplifier |
| 06/30/2009 | US7554391 Amplifier having a virtual ground and method thereof |
| 06/30/2009 | US7554390 Method and system for transitioning between operation states in an output system |
| 06/30/2009 | US7554389 Differential amplifier and digital-to-analog converter |
| 06/30/2009 | US7554376 Offset correcting method, offset correcting circuit, and electronic volume |
| 06/30/2009 | US7554074 Image sensor for low-noise voltage operation |
| 06/30/2009 | US7554072 Amplifier configuration with noise reduction for a photodiode |
| 06/25/2009 | WO2009079468A2 Amplifier with dynamic bias |
| 06/25/2009 | WO2009079096A1 High-speed, multi-stage class ab amplifiers |
| 06/25/2009 | WO2009079021A1 Filter circuit for an electret microphone |
| 06/25/2009 | WO2009078345A1 Constant voltage circuit |
| 06/25/2009 | WO2009078112A1 Arithmetic amplifier and pipeline type ad converter |
| 06/25/2009 | WO2009077816A1 Amplifier circuit, electronic device, method for configuring an amplifier circuit |
| 06/25/2009 | WO2009077501A1 Radial power amplification device with phase dispersion compensation of the amplification paths |
| 06/25/2009 | WO2009077265A1 Comparator circuit |
| 06/25/2009 | US20090160961 Amplifier circuit |
| 06/25/2009 | US20090160559 Integrated circuit including impedance to provide symmetrical differential signals |
| 06/25/2009 | US20090160558 Rf amplifier |
| 06/25/2009 | US20090160557 Self-biased cascode current mirror |
| 06/25/2009 | US20090160555 Apparatus for power amplification based on envelope elimination and restoration (eer) and push-pull switching |
| 06/25/2009 | US20090160553 Distortion suppression circuit for digital class-d audio amplifier |
| 06/25/2009 | US20090160552 Apparatus and method for class d amplifier with sampling rate conversion |
| 06/25/2009 | US20090160551 Switching Amplifier |
| 06/25/2009 | US20090160547 Method and system for transitioning between operation states in an output system |
| 06/25/2009 | US20090159784 Integrated circuit device and imaging apparatus using integrated circuit device |
| 06/25/2009 | DE102008057234A1 Device for amplifying audio signal by digital circuit amplifier and reproduction by one or multiple loudspeaker elements, has digital circuit amplifier whose regulating notch is provided with rectified unstabilized supply voltage |
| 06/25/2009 | CA2709406A1 Radial power amplification device with phase dispersion compensation of the amplification paths |
| 06/24/2009 | EP2073382A1 A method for signal amplification, a current switched power amplifier system, a base station, a mobile station and a communication network therefor |
| 06/24/2009 | EP2073381A1 Multiport amplifiers in communications satellites |
| 06/24/2009 | EP1538744B1 Gain-controlled amplifier, receiver circuit and radio communication device |
| 06/24/2009 | CN101465624A Amplifier with selective channel and variable gain as well as implementing method thereof |
| 06/24/2009 | CN101465623A Differential amplifier with symmetric ciruict topology |
| 06/24/2009 | CN101465622A D-genus audio power amplifier |
| 06/24/2009 | CN101465621A Controllable supply voltage circuit for power amplifier |
| 06/24/2009 | CN101465620A Radio frequency buffering amplifying circuit |
| 06/24/2009 | CN100505527C Systems and methods for providing multi channel pulse width modulated audio with staggered outputs |
| 06/24/2009 | CN100505526C Low voltage circuit for interfacing with high voltage analog signals |
| 06/24/2009 | CN100505525C Filter circuit |
| 06/24/2009 | CN100505524C Limiting amplifiers |
| 06/24/2009 | CN100505523C Signal power amplifier and signal amplification method |
| 06/24/2009 | CN100505519C Method and apparatus for realizing a low noise amplifier |
| 06/24/2009 | CN100504324C Semiconductor device, temperature sensor, and electronic apparatus comprising it |
| 06/23/2009 | US7551903 Reflecting modulator circuit comprising a negative impedance amplifier |
| 06/23/2009 | US7551687 Distortion compensating apparatus |
| 06/23/2009 | US7551036 Power amplifier for amplifying high-frequency (H.F.) signals |
| 06/23/2009 | US7551035 Fast converter for crossing voltage domains |
| 06/23/2009 | US7551030 Two-stage operational amplifier with class AB output stage |
| 06/23/2009 | US7551029 Transconductance stage providing gain control |
| 06/23/2009 | US7551028 Signal generators for current-mode three-level digital amplifiers |
| 06/23/2009 | US7551022 Power supply compensation |
| 06/23/2009 | US7550700 Light-receiving semiconductor device and optical pickup device |