| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/06/2014 | US20140035679 Power Amplifier Device and Power Amplifier Circuit Thereof |
| 02/06/2014 | US20140035678 Power Amplifier Apparatus and Power Amplifier Circuit |
| 02/06/2014 | US20140035677 Doherty Power Amplifier and Implementation Method Thereof |
| 02/06/2014 | US20140035676 Doherty Power Amplifier and Implementation Method Thereof |
| 02/06/2014 | US20140035673 Multimode differential amplifier biasing system |
| 02/06/2014 | US20140035672 Level shifting circuit with adaptive feedback |
| 02/06/2014 | US20140035671 Sense amplifier and electronic apparatus using the same |
| 02/06/2014 | US20140035670 Fet pair based physically unclonable function (puf) circuit with a constant common mode voltage |
| 02/06/2014 | US20140035669 Differential Stacked Output Stage for Power Amplifiers |
| 02/06/2014 | US20140035668 Cascaded class d amplifier with improved linearity |
| 02/06/2014 | US20140035665 Two-Stage Class AB Operational Amplifier |
| 02/06/2014 | US20140035652 Signal directing means for dividing an input signal into at least two output signals or combining at least two input signals into one output signal |
| 02/06/2014 | DE102013106159A1 Differentielle gestapelte Ausgangsstufe für Leistungsverstärker Differential stacked output stage for power amplifiers |
| 02/05/2014 | EP2693638A1 Pulse generation device |
| 02/05/2014 | EP2693634A1 Harmonic suppression in switching amplifiers |
| 02/05/2014 | EP2693633A1 Calibration for power amplifier predistortion |
| 02/05/2014 | EP2693632A1 Amplifier and audio device provided with amplifier |
| 02/05/2014 | EP2692056A1 Low switching error, small capacitors, auto-zero offset buffer amplifier |
| 02/05/2014 | CN203423793U Class-D power amplifier regulation circuit |
| 02/05/2014 | CN203423692U Compatible average optical power monitoring circuit |
| 02/05/2014 | CN203423657U Device for improving fidelity of D-type power amplifier |
| 02/05/2014 | CN103563251A VSWR measurement circuit, wireless communication device, VSWR measurement method and recording medium in which VSWR measurement program is stored |
| 02/05/2014 | CN103563250A 放大器 Amplifiers |
| 02/05/2014 | CN103560760A Amplification circuit and measurement device |
| 02/05/2014 | CN103560759A Low-power channel power amplifier provided with heterojunction bipolar transistor |
| 02/05/2014 | CN103560758A Power amplifier used for polar coordinate transmitter |
| 02/05/2014 | CN103560757A Intermediate power amplifier of radio-frequency signal output module |
| 02/05/2014 | CN103560756A Double-frequency amplification circuit |
| 02/05/2014 | CN103560755A Power amplifier, power amplifier saturation detection and mobile wireless telecommunication device |
| 02/05/2014 | CN101917165B Electron beam system, image generator, and amplifier of high-speed driving inductor |
| 02/04/2014 | US8643438 Class-AB power amplifier |
| 02/04/2014 | US8643437 Multi-input differential amplifier with dynamic transconductance compensation |
| 02/04/2014 | US8643436 Multi-level boosted Class D amplifier |
| 02/04/2014 | US8643434 Adjustable gain audio power amplifying circuit |
| 02/04/2014 | US8643432 Op-Amp sharing by swapping trans-conductance cells |
| 02/04/2014 | CA2728901C Method of achieving high selectivity in receiver rf front-ends |
| 02/03/2014 | CA2822450A1 Mobile wireless communications device with rf lte switches and related methods |
| 01/30/2014 | WO2014018935A1 Low voltage multi-stage amplifier |
| 01/30/2014 | WO2014018124A1 Receiver having a wide common mode input range |
| 01/30/2014 | WO2014017699A1 Power amplifier having stack structure |
| 01/30/2014 | WO2014016770A2 Digital upconversion for multi-band multi-order power amplifiers |
| 01/30/2014 | US20140029359 Sense amplifier circuit and memory device including the same |
| 01/30/2014 | US20140029143 Receiver having a wide common mode input range |
| 01/30/2014 | US20140028399 Signal Amplifier |
| 01/30/2014 | US20140028398 Wideband AFT Power Amplifier Systems With Frequency-Based Output Transformer Impedance Balancing |
| 01/30/2014 | US20140028397 Low voltage multi-stage amplifier |
| 01/30/2014 | US20140028396 Unity-gain buffer with enhanced slew rate |
| 01/30/2014 | US20140028395 Op-Amp Sharing by Swapping Trans-Conductance Cells |
| 01/30/2014 | US20140028394 Current mode logic circuit and method |
| 01/30/2014 | US20140028393 Circuits for providing class-e power amplifiers |
| 01/30/2014 | US20140028387 Monolithic integrated circuit chip integrating multiple devices |
| 01/30/2014 | US20140027639 CTIA for IR Readout Integrated Circuits Using Single Ended OPAMP With In-Pixel Voltage Regulator |
| 01/29/2014 | EP2690779A2 Wideband AFT power amplifier systems with frequency-based output transformer impedance balancing |
| 01/29/2014 | EP2689491A1 A signal directing means for dividing an input signal into at least two output signals or combining at least two input signals into one output signal |
| 01/29/2014 | CN203416227U Small signal amplification circuit |
| 01/29/2014 | CN103548260A Power supply with rectifier protection |
| 01/29/2014 | CN103548259A Wireless communications including distributed feedback architecture |
| 01/29/2014 | CN103548258A Switching circuit |
| 01/29/2014 | CN103548249A Power supply arrangement for single ended class d amplifier |
| 01/29/2014 | CN103546184A Power amplification method and power amplification system adaptive to multiple modes, multiple frequencies and wide bands |
| 01/29/2014 | CN103546108A 功率放大器 PA |
| 01/29/2014 | CN103546107A Broadband linear current-carrying amplifier |
| 01/29/2014 | CN103546103A 放大器电路 The amplifier circuit |
| 01/29/2014 | CN102394576B Substrate integrated crack waveguide power synthesis amplifier |
| 01/29/2014 | CN102106079B Predistorter |
| 01/28/2014 | US8638480 Image reading apparatus |
| 01/28/2014 | US8638171 Radiofrequency amplifier |
| 01/28/2014 | US8638170 Single supply headphone driver/charge pump combination |
| 01/28/2014 | US8638169 Power supply method and apparatus |
| 01/28/2014 | US8638168 Digital power amplifier |
| 01/28/2014 | US8637835 Drawing apparatus, method of manufacturing article, and processing apparatus |
| 01/23/2014 | WO2014013869A1 Amplifying module and transmitting module provided with same |
| 01/23/2014 | WO2013173489A3 Integrated technique for enhanced power amplifier forward power detection |
| 01/23/2014 | US20140022021 Power amplifier |
| 01/23/2014 | US20140022020 Semiconductor package design providing reduced electromagnetic coupling between circuit components |
| 01/23/2014 | US20140022017 Integrator input error correction circuit and circuit method |
| 01/23/2014 | US20140022016 Amplifiers and Related Biasing Methods and Devices |
| 01/23/2014 | US20140022015 Multiple-output transconductance amplifier based instrumentation amplifier |
| 01/23/2014 | US20140022014 Apparatus and methods for amplifier power supply control |
| 01/23/2014 | US20140022013 Antenna drive apparatus |
| 01/23/2014 | DE102013107414A1 Vorrichtung und verfahren zur verstärkerstromversorgungssteuerung Apparatus and method for amplifier power supply control |
| 01/22/2014 | EP2688204A1 Electric charge detection circuit |
| 01/22/2014 | EP2688203A2 Multiple-output transconductance amplifier based instrumentation amplifier |
| 01/22/2014 | EP2688202A2 Systems and methods for vector power amplification |
| 01/22/2014 | EP2688201A1 A controller and a method for controlling an operating characteristic of an amplifier circuit |
| 01/22/2014 | EP2686953A2 Enhanced doherty amplifier |
| 01/22/2014 | CN203407017U 网络型数字功放 Network-based digital amplifier |
| 01/22/2014 | CN203406837U Signal amplification circuit and signal amplifier |
| 01/22/2014 | CN203406836U Digital power amplifier unit of passenger room |
| 01/22/2014 | CN203406835U Power amplification device |
| 01/22/2014 | CN203406834U Power amplifier circuit and audio-video playing device |
| 01/22/2014 | CN103534941A Electric charge detection circuit |
| 01/22/2014 | CN103534940A Positive feedback common gate low noise amplifier |
| 01/22/2014 | CN103534939A Power supply with tickle pulse injection |
| 01/22/2014 | CN103534938A Amplification circuit and reception chain |
| 01/22/2014 | CN103534937A 放大器电路和无线通信设备 Amplifier circuits and wireless communication devices |
| 01/22/2014 | CN103534936A 电流缓冲器 Current Buffer |
| 01/22/2014 | CN103532507A 传感器信号运算放大器 Sensor signal of the operational amplifier |
| 01/22/2014 | CN103532506A System and method for a cascoded amplifier |
| 01/22/2014 | CN103532505A Groove-hole high-frequency device applied to terahertz amplifier |