| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 10/30/2013 | CN103379409A Music rhythm electroacoustic low frequency power amplifying signal conversion circuit |
| 10/30/2013 | CN103378813A System and method for high input capacitive signal amplifier |
| 10/30/2013 | CN103378812A Class D amplifiers |
| 10/30/2013 | CN103378811A Power amplifier with fast loadline modulation |
| 10/30/2013 | CN103378808A Amplifier with floating well |
| 10/30/2013 | CN101904090B Trans-impedance amplifier |
| 10/30/2013 | CN101573865B Apparatus and method for controlling common-mode voltage of switching amplifiers |
| 10/29/2013 | US8570103 Flexible multi-channel amplifiers via wavefront muxing techniques |
| 10/29/2013 | US8570102 Switching amplifier |
| 10/29/2013 | US8570101 Variable duty cycle generation for out-phasing and PWM power amplifiers |
| 10/29/2013 | US8569674 Multiplexed photocurrent monitoring circuit comprising current mirror circuits |
| 10/24/2013 | WO2013158760A1 Optimizing cascade gain stages in a communication system |
| 10/24/2013 | WO2013158128A1 High side current sense amplifier |
| 10/24/2013 | WO2013158088A1 Circuit providing dc voltages to differential signal lines via restore pulse |
| 10/24/2013 | WO2013157298A1 Filter circuit, class-f power amplifier, inverse class-f power amplifier |
| 10/24/2013 | WO2013157039A1 Path-switching electrical power amplifier |
| 10/24/2013 | WO2013156822A1 A dynamic frequency divider circuit |
| 10/24/2013 | WO2013155580A1 Scalar energy generation device |
| 10/24/2013 | US20130281043 Low Noise Amplifier |
| 10/24/2013 | US20130281035 Method and system for adjusting transmission power |
| 10/24/2013 | US20130279630 Circuit and transmitter for reducing transmitter gain asymmetry variation |
| 10/24/2013 | US20130278341 Radio frequency front-end circuit and operation method thereof |
| 10/24/2013 | US20130278340 Power Amplifiers with Improved Power Control |
| 10/24/2013 | US20130278339 Power Control for Power Amplifiers |
| 10/24/2013 | US20130278338 Trans-impedance amplifier for high speed optical-electrical interfaces |
| 10/24/2013 | US20130278336 Gain enhancement for cascode structure |
| 10/24/2013 | US20130278335 High Speed, Low Power Write Current Switching Scheme for HDD Preamplifier |
| 10/24/2013 | DE102012103403A1 Signal level regulator of amplifier for use in e.g. radio, has output terminals that are connected to transmission lines, respectively through capacitors |
| 10/24/2013 | DE10109873B4 Signalverarbeitungsvorrichtung Signal processing apparatus |
| 10/23/2013 | EP2654205A1 Class D Amplifiers |
| 10/23/2013 | EP2652872A1 Current mirror and high-compliance single-stage amplifier |
| 10/23/2013 | EP2652871A1 Apparatus and methods for capacitive load reduction |
| 10/23/2013 | CN203251273U Charge amplifier |
| 10/23/2013 | CN203251272U CMOS amplifying circuit matched with infrared low-impedance photoconductive detector |
| 10/23/2013 | CN103370874A Apparatus and methods for capacitive load reduction |
| 10/23/2013 | CN103368573A Self-range-adaptive current ADC (Analog to Digital Converter) circuit |
| 10/23/2013 | CN103368514A Variable gain amplifier-equipped measuring apparatus |
| 10/23/2013 | CN103368513A Dual-channel microwave power amplifying module |
| 10/23/2013 | CN103368512A Multichannel differential amplification circuit and accuracy compensation method thereof |
| 10/23/2013 | CN103368511A Transconductance adjustment circuit, circuit device, and electronic apparatus |
| 10/23/2013 | CN103368510A Fully complementary self-biased differential receiver with startup circuit |
| 10/23/2013 | CN103368509A 跨导运算放大器 Transconductance operational amplifier |
| 10/23/2013 | CN103368508A Radio frequency power amplifier with low dynamic error vector magnitude |
| 10/23/2013 | CN103368503A MEMS device front-end charge amplifier and related method |
| 10/23/2013 | CN103368502A Compensating circuit and method of amplifier driving large capacitive load |
| 10/23/2013 | CN102007687B Amplitude control circuit, polar modulation transmission circuit and polar modulation method |
| 10/23/2013 | CN101944887B Ended output type D-class amplifier of double-feedback differential circuit |
| 10/23/2013 | CN101911477B Predistorter |
| 10/22/2013 | US8564373 Broadband power amplifier |
| 10/22/2013 | US8564372 Circuit for compensating base current of transistor and amplifier circuit provided with the same |
| 10/22/2013 | US8564370 Error amplifier and LED circuit comprising the same |
| 10/22/2013 | US8564367 Power amplifier |
| 10/22/2013 | US8564366 High-frequency power amplifier device |
| 10/17/2013 | WO2013155197A1 Adaptive rail power amplifier technology |
| 10/17/2013 | WO2013154013A1 Power amplifier |
| 10/17/2013 | WO2013153894A1 Cascode amplifier and amplifier circuit |
| 10/17/2013 | WO2013153802A1 Motion sensor, and electronic apparatus using same |
| 10/17/2013 | WO2013153485A1 Digital predistorter (dpd) structure based on dynamic deviation reduction (ddr)-based volterra series |
| 10/17/2013 | WO2013152786A1 A high speed rf power detector |
| 10/17/2013 | US20130272545 Multi-stage amplifier with pulse width modulation (pwm) noise shaping |
| 10/17/2013 | US20130271225 Power module for envelope tracking |
| 10/17/2013 | US20130271224 Multiband rf switch ground isolation |
| 10/17/2013 | US20130271223 Amplifier with floating well |
| 10/17/2013 | US20130271222 Apparatus and method for balanced power amplification |
| 10/17/2013 | US20130271221 Direct current (dc)-dc converter having a multi-stage output filter |
| 10/17/2013 | US20130271217 Differential amplifier stage with integrated offset cancellation circuit |
| 10/17/2013 | US20130271216 High Side Current Sense Amplifier |
| 10/17/2013 | US20130271215 Class d audio amplifier with noise suppression and the method thereof |
| 10/17/2013 | US20130271214 Class d amplifiers |
| 10/17/2013 | DE112012000470T5 Vorrichtung und Verfahren zur Miller-Kompensation bei mehrstufigen Verstärkern Apparatus and method for Miller compensation in multi-stage amplifiers, |
| 10/16/2013 | EP2649725A2 Fast power up comparator |
| 10/16/2013 | EP2649724A1 Pseudo-envelope follower power management system with high frequency ripple current compensation |
| 10/16/2013 | CN203243286U Isolating amplifying circuit of analog quantity converter |
| 10/16/2013 | CN203243285U Amplifier with output swing twice as large as supply voltage |
| 10/16/2013 | CN203243284U Ultrahigh frequency dual-band power amplifying circuit |
| 10/16/2013 | CN203243283U High-frequency amplifier, semiconductor device and system comprising semiconductor device |
| 10/16/2013 | CN1822718B Small light and thin large power high sensitivity high sound quality speaker and power drive and control circuit |
| 10/16/2013 | CN103354444A Low-power-consumption variable gain amplifier |
| 10/16/2013 | CN103354443A CTCMFB (continuous time common-mode feedback) circuit applied to high-speed fully differential operational amplifier |
| 10/16/2013 | CN101888263B Electronic device with data-rate-dependent power amplifier bias |
| 10/16/2013 | CN101836358B Integrated-circuit low-noise amplifier |
| 10/15/2013 | US8559658 Electronic apparatus |
| 10/15/2013 | US8558622 Radio frequency power amplifier |
| 10/15/2013 | US8558621 Driver amplifier circuit and communication system |
| 10/15/2013 | US8558620 Radial power amplification device with phase dispersion compensation of the amplification paths |
| 10/15/2013 | US8558619 Silicon-on-insulator high power amplifiers |
| 10/15/2013 | US8558618 Versatile audio power amplifier |
| 10/15/2013 | US8558617 Multilevel class-D amplifier |
| 10/15/2013 | US8558611 Peaking amplifier with capacitively-coupled parallel input stages |
| 10/15/2013 | US8558610 Integrator input error correction circuit and circuit method |
| 10/15/2013 | US8558609 Amplification systems and methods with noise reductions |
| 10/10/2013 | WO2013152290A1 Headphone amplifier |
| 10/10/2013 | WO2013150564A1 Multi-mode/multi-band amplifier |
| 10/10/2013 | WO2013150156A1 Extremely high frequency dual-mode class ab power amplifier |
| 10/10/2013 | US20130265111 Power amplifier and operating method thereof |
| 10/10/2013 | US20130265110 High gain, high voltage power amplifier |
| 10/10/2013 | US20130265109 Power amplification circuit having transformer |
| 10/10/2013 | US20130265108 Extremely High Frequency Dual-Mode Class AB Power Amplifier |
| 10/10/2013 | US20130265107 Electronic devices with multiple amplifier stages and methods of their manufacture |
| 10/10/2013 | US20130264909 System for driving a piezoelectric load and method of making same |