| 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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| 02/11/2015 | CN204156816U 提高功率合成效率的功率放大器 Improve the efficiency of the power amplifier synthesis |
| 02/11/2015 | CN104348433A 高速运算放大器及其运作方法 Speed op amps and method of operation |
| 02/11/2015 | CN104348432A 一种差分输出增益相位高度平衡且稳健的单转双低噪声放大器 Kind of differential output gain phase highly balanced and robust single-turn double low noise amplifier |
| 02/11/2015 | CN104348429A 直流漂移消除电路 DC offset cancellation circuit |
| 02/11/2015 | CN104348428A 用于振幅调变至相位调变失真补偿的装置及方法 For amplitude modulation to phase modulation distortion compensation apparatus and method |
| 02/11/2015 | CN104348427A 一种d类音频功放电路、功率放大器及音频播放装置 One kind of class d audio amplifier circuit, amplifier and audio playback device |
| 02/11/2015 | CN104348424A 具有增强的线性度的分离偏置射频功率放大器 Separation with enhanced linearity bias RF power amplifier |
| 02/11/2015 | CN104348423A 功率放大器 PA |
| 02/11/2015 | CN104348422A 实现消除音频功率放大器开关噪声的电路结构及其方法 Audio power amplifier circuit structure to achieve the elimination of switching noise and its method |
| 02/11/2015 | CN104348421A 开关模式放大器 Switch-mode amplifier |
| 02/11/2015 | CN104348420A 功率放大模块 Power amplifier module |
| 02/11/2015 | CN102780459B 应用于mems读出电路的伪随机调制解调斩波电路 Applied to the pseudo-random reads mems modem chopper circuit |
| 02/11/2015 | CN102281034B 功率放大器 PA |
| 02/11/2015 | CN102210093B 检测步进电机的运转情况的方法 The method of operation to the detection of the stepping motor |
| 02/10/2015 | US8953728 System for processing data streams |
| 02/10/2015 | US8953711 Configurable pre-emphasis component for transmission circuitry |
| 02/10/2015 | US8952757 Amplifiers with enhanced power supply rejection ratio at the output stage |
| 02/10/2015 | US8952755 Power amplifier |
| 02/10/2015 | US8952754 Linearization of heterogeneous power amplifier systems |
| 02/10/2015 | US8952752 Smart power combiner |
| 02/10/2015 | US8952751 Amplifier circuits and methods of amplifying an input signal |
| 02/10/2015 | US8952455 Source follower circuit or bootstrap circuit, driver circuit comprising such circuit, and display device comprising such driver circuit |
| 02/05/2015 | WO2015017832A1 Apparatus and methods for biasing power amplifiers |
| 02/05/2015 | WO2015017487A1 Amplifiers with configurable mutually-coupled source degeneration inductors |
| 02/05/2015 | WO2015017352A1 Power Amplifier Open Loop Current Clamp |
| 02/05/2015 | WO2015014303A1 Tunable radio frequency low noise amplifier |
| 02/05/2015 | US20150038092 Power Amplifier Open Loop Current Clamp |
| 02/05/2015 | US20150035609 Method and apparatus for converting single-ended signals into differential signals |
| 02/05/2015 | US20150035608 Distortion compensating apparatus and distortion compensation method |
| 02/05/2015 | US20150035606 Time and amplitude alignment in envelope tracking amplification stage |
| 02/05/2015 | US20150035603 Feed-forward amplifier device and method thereof |
| 02/05/2015 | US20150035602 Noise canceling low-noise amplifier |
| 02/05/2015 | US20150035600 Amplifiers with configurable mutually-coupled source degeneration inductors |
| 02/05/2015 | US20150035596 Versatile Audio Power Amplifier |
| 02/05/2015 | US20150035594 Method and Apparatus for Improving Leakage Performance of a Multi-Port Amplifier |
| 02/05/2015 | US20150035593 Input Power Detecting Arrangement and Method |
| 02/05/2015 | DE10015315B4 Antennenverstärker und regelbares Stellglied Antenna amplifier and adjustable actuator |
| 02/04/2015 | EP2833547A1 An Amplification Circuit |
| 02/04/2015 | CN204145418U 一种超小型宽带的砷化镓功率均衡电路 An ultra-compact wideband GaAs power equalization circuit |
| 02/04/2015 | CN204145417U 导频生成和对消装置以及前馈功放系统 Pilot generating and feedforward cancellation device and amplifier system |
| 02/04/2015 | CN104335486A 多系统放大装置 Multi-system amplifying device |
| 02/04/2015 | CN104335484A 头戴式耳机放大器 Headphone amplifier |
| 02/04/2015 | CN104335483A 用于载波聚集的多输入多输出(mimo)低噪声放大器 Carrier aggregation for multiple-input multiple-output (mimo) low noise amplifier |
| 02/04/2015 | CN104333336A 一种应用于跨阻放大电路中的分相电路 Applied to the transimpedance amplifier circuit in phase |
| 02/04/2015 | CN104333335A 自适应双极型晶体管功率放大器线性偏置电路 Adaptive linear bipolar transistor power amplifier bias circuit |
| 02/04/2015 | CN104333334A 卫星导航航空增强系统宽带低噪射频放大器和传输装置 Aviation enhanced broadband satellite navigation system low-noise RF amplifier and transmission equipment |
| 02/04/2015 | CN104333333A 一种单端放大器及其噪声消除方法 A single-ended amplifier and noise cancellation method |
| 02/04/2015 | CN104333332A 一种Doherty功放的控制方法和装置 A control method and apparatus of the Doherty amplifier |
| 02/04/2015 | CN104333331A 音频功放电路的供电方法和装置及音频播放设备 Power audio amplifier circuit method and apparatus and audio playback equipment |
| 02/04/2015 | CN102983819B 一种功率放大器的模拟方法及功率放大器模拟装置 Simulation method for power amplifier and power amplifier simulator |
| 02/04/2015 | CN102694514B 功放装置 Amplifier device |
| 02/04/2015 | CN102694508B 一种多路Doherty放大器 A multi-way Doherty amplifier |
| 02/04/2015 | CN101800519B 运算放大器及降低运算放大器的偏移电压的方法 Operational Amplifiers and reduce operational amplifier offset voltage method |
| 02/04/2015 | CN101562429B 向用于脉冲负载的放大器模块馈送直流电能的方法和设备 Method and apparatus for pulse load to the amplifier module capable of feeding DC |
| 02/03/2015 | US8949077 Physiological signal quality classification for ambulatory monitoring |
| 02/03/2015 | US8948700 Method and system for compensating for distortion in a transmitter by utilizing a digital predistortion scheme with a feedback mixer configuration |
| 02/03/2015 | US8947166 Radio frequency power amplifier |
| 02/03/2015 | US8947165 Multi-mode Doherty power amplifier |
| 02/03/2015 | US8947164 Integrated technique for enhanced power amplifier forward power detection |
| 02/03/2015 | US8947162 Power control |
| 02/03/2015 | US8947161 Linear amplifier power supply modulation for envelope tracking |
| 02/03/2015 | US8947157 Voltage multiplier charge pump buck |
| 01/29/2015 | WO2015013125A1 Suppression of spurious harmonics generated in tx driver amplifiers |
| 01/29/2015 | WO2015011561A2 Amplification device, and wireless communication device |
| 01/29/2015 | WO2015010328A1 Method, apparatus and system for envelope tracking |
| 01/29/2015 | US20150031318 Transmitter and method with rf power amplifier having predistorted bias |
| 01/29/2015 | US20150030184 Audio Amplifier and Power Supply Voltage Switching Method |
| 01/29/2015 | US20150028951 Operational amplifier circuits |
| 01/29/2015 | US20150028950 Charge preamplifier |
| 01/29/2015 | US20150028949 High voltage input circuit for a differential amplifier |
| 01/29/2015 | US20150028947 Distortion compensation apparatus and method |
| 01/29/2015 | US20150028946 Amplitude Modulation to Phase Modulation (AMPM) Distortion Compensation |
| 01/28/2015 | EP2830089A1 RF power device |
| 01/28/2015 | EP2828971A1 Bandpass sampling schemes for observation receiver for use in pa dpd system for concurrent multi-band signals |
| 01/28/2015 | EP2828970A2 Reconfigurable input power distribution doherty amplifier with improved efficiency |
| 01/28/2015 | CN204131468U 一种毫米波倍频放大装置 A frequency doubling millimeter wave amplification device |
| 01/28/2015 | CN104321964A 用于动态误差向量大小加强的集成启动偏置增强 Integrated start-up bias for dynamic error vector magnitude enhancements strengthen |
| 01/28/2015 | CN104321963A 用于载波聚集的低噪声放大器 For carrier aggregation of a low noise amplifier |
| 01/28/2015 | CN104320096A 一种微电流、电流反馈的斩波调制仪表放大器 A micro current, current-feedback instrumentation amplifier chopper modulation |
| 01/28/2015 | CN104320095A 一种降低数字预失真中adc采样速率的方法及装置 Method and apparatus for reducing digital predistortion adc sampling rate |
| 01/28/2015 | CN104320094A 脉冲信号驻波保护电路 Pulse signal VSWR protection circuit |
| 01/28/2015 | CN104320093A 一种用于稳定放大器的系统及方法 A system and method for stabilizing amplifier |
| 01/28/2015 | CN104320092A 一种微弱信号测量的宽频带低噪声差分放大电路 Wideband low-noise differential measurement of a weak signal amplifying circuit |
| 01/28/2015 | CN104320091A 用于电脑音箱的功率放大电路 Computer speakers for power amplifier circuit |
| 01/28/2015 | CN104320090A 低噪声放大器的改进结构 Improve the structure of the low-noise amplifier |
| 01/28/2015 | CN102751950B 一种多波段多模式射频功率放大器的数字预失真方法 A multi-band multi-mode digital RF power amplifier predistortion method |
| 01/28/2015 | CN102439856B 自适应参量功率放大器保护电路 Adaptive parametric amplifier protection circuits |
| 01/27/2015 | US8942949 Apparatus and method for determining a state parameter of an object to be monitored |
| 01/27/2015 | US8942652 Split VCC and common VCC power management architecture for envelope tracking |
| 01/27/2015 | US8942651 Cascaded converged power amplifier |
| 01/27/2015 | US8942650 RF PA linearity requirements based converter operating mode selection |
| 01/27/2015 | US8942649 Radio-frequency transmitter and amplifier |
| 01/27/2015 | US8942635 Method and system for compensating for estimated distortion in a transmitter by utilizing a digital predistortion scheme with a single feedback mixer |
| 01/27/2015 | US8942391 Distortion compensation |
| 01/27/2015 | US8942313 Group delay calibration method for power amplifier envelope tracking |
| 01/27/2015 | US8941439 Differential charge reduction |
| 01/27/2015 | US8941438 Bandwidth limiting for amplifiers |
| 01/27/2015 | US8941412 Amplifiers using gated diodes |
| 01/22/2015 | WO2015008429A1 Constant current constant voltage circuit |
| 01/22/2015 | WO2015006866A1 Dual-band high efficiency doherty amplifiers with hybrid packaged power devices |