| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 12/07/2011 | EP2393201A1 Two stage doherty amplifier |
| 12/07/2011 | EP2393112A2 Inductive circuit arrangement |
| 12/07/2011 | EP2393111A1 Inductive bond-wire circuit |
| 12/07/2011 | CN202068381U 用于抑制噪声的d类音频功率放大器 For suppressing noise in audio power amplifier class d |
| 12/07/2011 | CN202068379U 一种实用峰值保持电路 A practical peak hold circuit |
| 12/07/2011 | CN102273069A 改进的电源级 Improved power level |
| 12/07/2011 | CN102273068A 极化调制装置及通信设备 Polarization modulation device and communication equipment |
| 12/07/2011 | CN102270968A 片外谐波吸收回路 Harmonic absorption circuit chip |
| 12/07/2011 | CN102270967A 功率放大器片内谐波吸收回路 Internal power amplifier chip harmonic absorption circuit |
| 12/07/2011 | CN102270966A 两级多尔蒂放大器 Two Doherty amplifier |
| 12/07/2011 | CN101527542B 用于最小化共模振荡的多级放大器电路、方法及集成电路 Used to minimize common mode oscillation multistage amplifier circuits, methods and integrated circuits |
| 12/07/2011 | CN101366171B 单端放大器 Single-ended amplifier |
| 12/07/2011 | CN101361265B 具有大信号输出升压级的小信号放大器 Small-signal amplifier has a large signal output boost stage |
| 12/07/2011 | CN101309070B 运算放大器及其动态电流供应电路 Operational amplifier and dynamic current supply circuit |
| 12/06/2011 | US8072262 Low input bias current chopping switch circuit and method |
| 12/06/2011 | US8072261 Power amplifier |
| 12/01/2011 | WO2011149426A1 Amplifier and transceiver including the amplifier |
| 12/01/2011 | WO2011148939A1 Amplifying circuit, wireless communication device, wireless communication system, and remote radio unit |
| 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 | WO2011093996A3 Cmos power amplifiers having integrated one-time programmable (otp) memories |
| 12/01/2011 | US20110294452 Antenna amplifier device and antenna device provided in mobile object |
| 12/01/2011 | US20110293115 Dynamically biased amplifier |
| 12/01/2011 | US20110291764 Linear fet feedback amplifier |
| 12/01/2011 | US20110291763 Low noise amplifier |
| 12/01/2011 | DE102010022310A1 Stromquellenanordnung, Schaltungsanordnung mit der Stromquellenanordnung und Verfahren zum Betreiben einer solchen Current source means, the circuit arrangement to the current source arrangement and method for operating such a |
| 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 | CN102265509A 功率放大器保护 PA protection |
| 11/30/2011 | CN102265508A 失真补偿电路及无线基站 Distortion compensation circuit and the radio base station |
| 11/30/2011 | CN102265507A 失真补偿电路 The distortion compensation circuit |
| 11/30/2011 | CN102265506A 陶赫蒂Doherty电路、多路陶赫蒂Doherty电路和基站设备 Tao Dougherty Doherty circuit, multiple circuits and pottery Dougherty Doherty station equipment |
| 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 | CN102263572A 无线通信收发机 The wireless communication transceiver |
| 11/29/2011 | US8069015 Pseudo noise sequence acquisition in spread spectrum systems |
| 11/29/2011 | US8068997 Continuous performance analysis system and method |
| 11/29/2011 | US8067998 Communication transceiver having a three-line balun with power amplifier bias |
| 11/29/2011 | US8067986 Closed loop surge protection technique for differential amplifiers |
| 11/24/2011 | WO2011145710A1 Power-supply device and power-amplification device using same |
| 11/24/2011 | WO2011145002A2 Multi-band high-efficiency doherty amplifier |
| 11/24/2011 | WO2011143778A1 Power supply circuits for audio amplifiers |
| 11/24/2011 | DE19781955B4 Feed-Forward-Mehrträger-Leistungsverstärker und Verfahreen zum Steuern der Amplitude und der Phase von Intermodulationsprodukten in einem Mehrträger-Leistungsverstärker Feed-forward multi-carrier power amplifier and Verfahreen for controlling the amplitude and the phase of intermodulation products in a multi-carrier power amplifier |
| 11/23/2011 | EP2388912A1 Power control of reconfigurable outphasing Chireix amplifiers and methods |
| 11/23/2011 | EP2388911A2 Mobile terminal and method of controlling a driving voltage of a power amplifier therein |
| 11/23/2011 | EP2388910A2 Electronic switch with a linear amplifier supported by a switching amplifier |
| 11/23/2011 | EP2388815A1 A transistor package |
| 11/23/2011 | CN1964213B A method to improve linearity of radio-frequency power amplifier, system and baseband |
| 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 | CN102257726A Apparatus and method for broadband amplifier linearization |
| 11/23/2011 | CN101471636B Amplifier with variable gain and high dynamic range |
| 11/23/2011 | CN101454970B An amplifier circuit with cross-coupled cascode transistors |
| 11/23/2011 | CN101272155B TDD mode digital predistortion power amplifier |
| 11/22/2011 | US8065031 Polishing end point detection method utilizing torque change and device thereof |
| 11/22/2011 | US8063701 System for reducing distortion in an electronic circuit using nonlinear feedback |
| 11/22/2011 | US8063700 Amplifier arrangement and method for amplifying a signal |
| 11/22/2011 | US8063699 Anti-pop circuit |
| 11/22/2011 | US8063698 Bypassing amplification |
| 11/22/2011 | US8063513 Power source and method for controlling operational power |
| 11/21/2011 | CA2740489A1 Method and apparatus for optimizing transmitter power efficiency |
| 11/17/2011 | WO2011143504A1 Area efficient concurrent matching transceiver |
| 11/17/2011 | WO2011142139A1 Amplifier |
| 11/17/2011 | WO2011141048A1 Higher order constellations based non-linear detection |
| 11/17/2011 | WO2011063358A3 Forward link signaling within a wireless power system |
| 11/17/2011 | US20110279183 Electronic Circuit with a Linear Amplifier Assisted by a Switch-Mode Amplifier |
| 11/17/2011 | US20110279181 Common-mode feedback circuit |
| 11/17/2011 | US20110279180 Power amplifier and power amplifying method |
| 11/17/2011 | US20110279177 Duplexer module |
| 11/17/2011 | DE102005038442B4 Gegentaktverstärker mit transformatorischer Gegenkopplung Push-pull amplifier with transformer feedback |
| 11/16/2011 | EP2387150A2 Automatic bias control circuit for linear power amplifiers |
| 11/16/2011 | EP2387149A1 Over-current protection for a switch mode class D audio amplifier |
| 11/16/2011 | CN202043078U Positive feedback broadband low-noise amplifier applied to millimeter-wave frequency ranges |
| 11/16/2011 | CN202043077U DPD Feedback path shared by multi-standard system |
| 11/16/2011 | CN202043076U Preposition amplifying circuit for turbine meter |
| 11/16/2011 | CN202043075U Back kicking prevention transistor-transistor logic (TTL) signal amplification circuit |
| 11/16/2011 | CN102246412A Amplifier with programmable off voltage |
| 11/16/2011 | CN102246411A Techniques for improving amplifier linearity |
| 11/16/2011 | CN101777875B Rectangular coordinate system-based adaptive nonlinear compensating device |
| 11/16/2011 | CN101667810B Chip of double-frequency radio-frequency power amplifier circuit |
| 11/16/2011 | CN101552594B High-fidelity power amplifying circuit in power supply regenerator |
| 11/16/2011 | CN101394153B Class d amplifier circuit |
| 11/15/2011 | US8058931 Enhancing an operational amplifier's capacitive load driving capability using parallel Miller feedback |
| 11/15/2011 | US8058928 Operational amplifier for an active pixel sensor |
| 11/15/2011 | CA2523781C Distributed gain network |
| 11/10/2011 | WO2011077247A9 Modulation agnostic digital hybrid mode power amplifier system and method |
| 11/10/2011 | US20110271756 Driver circuit for a measuring transducer as well as measuring system formed therewith |
| 11/10/2011 | DE102011012740A1 Electric circuit for protecting noise figure-power amplifier of output stage during switching-off of high electrical currents at electric starter motor, has switchable ohmic resistor arranged parallel to transistor of output stage |
| 11/10/2011 | DE102010039359A1 Durchbruchspannungsvervielfacherschaltung Durchbruchspannungsvervielfacherschaltung |
| 11/09/2011 | EP2385616A2 Low-noise high efficiency bias generation circuits and method |
| 11/09/2011 | EP2384543A1 Power amplifier protection |
| 11/09/2011 | CN202034947U Low-noise high-voltage amplifier |
| 11/09/2011 | CN1954495B Method and apparatus having a digital PWM signal generator with integral noise shaping |
| 11/09/2011 | CN1918790B Radio frequency low noise amplifier with automatic gain control |
| 11/09/2011 | CN102239634A Received light amplification circuit and optical disc device |
| 11/09/2011 | CN101771384B Non-dead time power amplifier output-stage circuit |