| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 12/06/2011 | US8072283 Signal modulation for switched mode power amplifiers |
| 12/06/2011 | US8072272 Digital tunable inter-stage matching circuit |
| 12/06/2011 | US8072271 Termination circuit based linear high efficiency radio frequency amplifier |
| 12/06/2011 | US8072270 CMOS RF power amplifier with LDMOS bias circuit for large supply voltages |
| 12/06/2011 | US8072269 Amplifier |
| 12/06/2011 | US8072268 Operational amplifier |
| 12/06/2011 | US8072267 Phase margin modification in operational transconductance amplifiers |
| 12/06/2011 | US8072266 Class G amplifier with improved supply rail transition control |
| 12/06/2011 | US8072264 Amplifying device |
| 12/06/2011 | US8072263 Power control device for a signal with optimized input dynamics |
| 12/06/2011 | US8072245 dB-linear voltage-to-current converter |
| 12/06/2011 | US8072001 Heterojunction bipolar transistor and method for manufacturing the same, and power amplifier using the same |
| 12/01/2011 | WO2011149426A1 Amplifier and transceiver including the amplifier |
| 12/01/2011 | WO2011148711A1 Amplification circuit, communication device, and transmission device using amplification circuit |
| 12/01/2011 | WO2011148710A1 Switching circuit and envelope signal amplifier |
| 12/01/2011 | WO2011148584A1 Transmission circuit and transmission method |
| 12/01/2011 | WO2011148582A1 Transmission circuit, transmission device, and transmission method |
| 12/01/2011 | WO2011147941A1 Power supply pre-distortion |
| 12/01/2011 | WO2011147744A1 Self oscillating modulator |
| 12/01/2011 | WO2011093996A3 Cmos power amplifiers having integrated one-time programmable (otp) memories |
| 12/01/2011 | US20110294540 Apparatus and method for amplifying power in mobile terminal |
| 12/01/2011 | US20110294446 Gyrator circuit, wide-band amplifier and radio communication apparatus |
| 12/01/2011 | US20110293293 Trans-impedance amplifier with variable bandwidth and digital coherent optical receiver installing the same |
| 12/01/2011 | US20110293115 Dynamically biased amplifier |
| 12/01/2011 | US20110291873 Differential amplifier and pipeline a/d converter using the same |
| 12/01/2011 | US20110291766 Transimpedance Amplifier and Pon System |
| 12/01/2011 | US20110291762 Integrated circuit and semiconductor memory device |
| 12/01/2011 | US20110291761 High-speed sensing for resistive memories |
| 12/01/2011 | US20110291760 Folded cascode differential amplifier and semiconductor device |
| 12/01/2011 | US20110291759 Rail-to-rail amplifier |
| 12/01/2011 | US20110291758 Differential comparator circuit having a wide common mode input range |
| 12/01/2011 | US20110291754 Segmented Power Amplifier with Varying Segment Activation |
| 12/01/2011 | US20110291589 Multi-input differential amplifier and light emitting element driving device |
| 11/30/2011 | EP2391002A1 Self oscillating modulator |
| 11/30/2011 | CN202059377U 宽带直流放大装置 Broadband DC amplification device |
| 11/30/2011 | CN202059376U 单电源隔离放大器 Single power supply isolation amplifier |
| 11/30/2011 | CN202059375U 功率放大器的故障自动检测和热备份的装置 Device power amplifier automatic fault detection and hot backup |
| 11/30/2011 | CN202059374U 用于胎儿监护仪回波信号接收的前置放大器 Preamplifier for fetal monitor echo signals received |
| 11/30/2011 | CN202059373U 跨阻放大器前端电路 Transimpedance amplifier front-end circuit |
| 11/30/2011 | CN202059173U 放大器单电源供电与大功率双电源供电电路 Single power supply and power amplifier dual power supply circuit |
| 11/30/2011 | CN1536770B 具有直流偏移补偿功能的直接转换接收器及其补偿方法 Direct conversion receiver having a DC offset compensation and compensation methods |
| 11/30/2011 | CN102265511A 功率放大器 PA |
| 11/30/2011 | CN102265510A 功率放大器饱和检测 Power amplifier saturation detection |
| 11/30/2011 | CN102265509A 功率放大器保护 PA protection |
| 11/30/2011 | CN102265507A 失真补偿电路 The distortion compensation circuit |
| 11/30/2011 | CN102265505A 功率放大装置 Power amplifying means |
| 11/30/2011 | CN102265504A 功率放大装置 Power amplifying means |
| 11/30/2011 | CN102265496A 二次取样电力转换 Subsampling Power Conversion |
| 11/30/2011 | CN102263542A 移相器及其功率放大器和核磁共振成像设备 Phase shifter and a power amplifier and magnetic resonance imaging equipment |
| 11/30/2011 | CN101068106B 共源共栅放大电路、放大器、和共源共栅放大电路的方法 Cascode amplifier, amplifiers, and methods cascode amplifier circuit |
| 11/30/2011 | CN101043207B 差动放大器、数模转换器以及显示装置 A differential amplifier, digital to analog converter and a display device |
| 11/29/2011 | US8067998 Communication transceiver having a three-line balun with power amplifier bias |
| 11/29/2011 | US8067985 Resonant operating mode for a transistor |
| 11/29/2011 | US8067983 High bandwidth, rail-to-rail differential amplifier with intermediate stage current amplifier |
| 11/29/2011 | US8067982 Transconductance amplifier with improved linearity |
| 11/29/2011 | US8067980 Pulse width modulation circuit and class-D amplifier comprising the PWM circuit |
| 11/29/2011 | US8067720 Image sensing device and imaging system |
| 11/24/2011 | WO2011146700A1 High power gallium nitride field effect transistor switches |
| 11/24/2011 | WO2011145710A1 Power-supply device and power-amplification device using same |
| 11/24/2011 | WO2011144150A1 Power amplifier, asymmetric doherty power amplifier device and base station |
| 11/24/2011 | WO2011143778A1 Power supply circuits for audio amplifiers |
| 11/24/2011 | US20110286611 Digital amplifier |
| 11/24/2011 | US20110286368 Radio frequency device and mobile communication terminal using the same |
| 11/24/2011 | US20110285884 Circuit for Processing a Time-discrete Analog Signal and Image Sensor |
| 11/24/2011 | US20110285468 Pre-amplifier |
| 11/24/2011 | US20110285467 Distributed Doherty Amplifiers |
| 11/24/2011 | US20110285466 Power amplifier circuit |
| 11/24/2011 | US20110285465 Operational amplifier having a common mode feedback circuit portion |
| 11/24/2011 | US20110285464 Apparatus and method for low noise amplification |
| 11/24/2011 | US20110285463 Output circuits with class d amplifier |
| 11/24/2011 | US20110285460 High frequency amplifier, wireless device, and control method |
| 11/24/2011 | US20110285316 Error Amplifier and LED Circuit Comprising the Same |
| 11/24/2011 | US20110285304 Error Amplifier and LED Circuit Comprising the Same |
| 11/24/2011 | US20110284840 Process Monitor for Monitoring an Integrated Circuit Chip |
| 11/23/2011 | EP2388933A1 Transimpedance amplifier and pon system |
| 11/23/2011 | EP2388913A1 Wireless transceiver system |
| 11/23/2011 | EP2388911A2 Mobile terminal and method of controlling a driving voltage of a power amplifier therein |
| 11/23/2011 | EP2388819A2 Low noise amplifier including group III nitride based high electron mobility transistors |
| 11/23/2011 | CN1956320B Amplifier circuit |
| 11/23/2011 | CN1751434B Enhanced efficiency feed forward power amplifier utilizing reduced cancellation bandwidth and small error amplifier |
| 11/23/2011 | CN102257727A Class ab amplifier with resistive level-shifting circuitry |
| 11/23/2011 | CN102255606A Solid-state RF (radio frequency) power supply based on E-power amplifying circuit |
| 11/23/2011 | CN102255605A Adjustable active biasing circuit for radiofrequency power amplifier |
| 11/23/2011 | CN101529716B Power amplifier |
| 11/23/2011 | CN101454970B An amplifier circuit with cross-coupled cascode transistors |
| 11/23/2011 | CN101341654B Input drive control for switcher regulated power amplifier modules |
| 11/22/2011 | US8064555 Input/output multi-level channelizer amplifier |
| 11/22/2011 | US8063706 Cascode CMOS RF power amplifier with programmable feedback cascode bias under multiple supply voltages |
| 11/22/2011 | US8063705 Push-pull transimpedance amplifier |
| 11/22/2011 | US8063702 High frequency receiver preamplifier with CMOS rail-to-rail capability |
| 11/22/2011 | US8063697 Self-oscillating driver circuit |
| 11/22/2011 | US8063620 Switching power supply device and semiconductor integrated circuit |
| 11/17/2011 | WO2011143504A1 Area efficient concurrent matching transceiver |
| 11/17/2011 | WO2011142876A1 Maintaining loop linearity in presence of threshold adjustment |
| 11/17/2011 | WO2011142139A1 Amplifier |
| 11/17/2011 | WO2011140728A1 Differential analog front end apparatus for low frequency signal detection and transmission system |
| 11/17/2011 | WO2011087656A3 Dynamic constant power amplifier |
| 11/17/2011 | WO2011063358A3 Forward link signaling within a wireless power system |
| 11/17/2011 | US20110279718 Amplifier for reducing horizontal band noise and devices having the same |
| 11/17/2011 | US20110279185 Method and system for providing automatic gate bias for field effect transistors |