| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/15/2013 | CN102006018B Opening control circuit used for AB class audio amplifier |
| 05/15/2013 | CN101507109B Circuits and methods for implementing power amplifiers for millimeter wave applications |
| 05/14/2013 | US8442628 Differential voltage sensing method |
| 05/14/2013 | US8441322 Broadband linearization by elimination of harmonics and intermodulation in amplifiers |
| 05/14/2013 | US8441321 Multi-stage amplifier |
| 05/14/2013 | US8441320 Cancelation of gain change due to amplifier self-heating |
| 05/14/2013 | US8441319 Method and apparatus for biasing rail to rail DMOS amplifier output stage |
| 05/14/2013 | US8441318 Push-pull low noise amplifier with variable gain, push-pull low noise amplifier with common gate bias circuit and amplifier with auxiliary matching |
| 05/14/2013 | US8441317 Tapered-impedance distributed switching power amplifier |
| 05/14/2013 | US8441316 Switching supply circuits and methods |
| 05/10/2013 | WO2013066752A1 Differential amplifier |
| 05/10/2013 | WO2013065846A1 Self-oscillating class-d amplifier and self-oscillating frequency control method for self-oscillating class-d amplifier |
| 05/10/2013 | WO2013065401A1 Power amplifying circuit |
| 05/10/2013 | WO2013063926A1 Power amplification module, multimode radio frequency transceiver, and multimode terminal |
| 05/10/2013 | WO2013063924A1 Power amplification module, radio frequency front-end module and multi-mode terminal |
| 05/09/2013 | US20130116017 Apparatus and methods for power amplifiers |
| 05/09/2013 | US20130114665 Low Nonlinear Distortion Variable Gain Amplifier |
| 05/09/2013 | US20130114361 Sense amplifier having an isolated pre-charge architecture, a memory circuit incorporating such a sense amplifier and associated methods |
| 05/09/2013 | US20130113642 Duty Cycle Translator Methods and Apparatus |
| 05/09/2013 | US20130113571 Antenna lna filter for gnss devices |
| 05/09/2013 | US20130113570 Method and Device for Controlling Power Amplification |
| 05/09/2013 | US20130113569 Cross-coupled multipath feedforward operational amplifiers |
| 05/09/2013 | US20130113568 Push-pull low-noise amplifier with area-efficient implementation |
| 05/09/2013 | US20130113567 Semiconductor integrated circuit, and reception apparatus and radio communication terminal including semiconductor integrated circuit |
| 05/09/2013 | US20130113566 Variable gain amplifier |
| 05/09/2013 | US20130113565 Linear differential amplifier with high input impedance |
| 05/09/2013 | US20130113564 Fast settling low power low noise amplifier |
| 05/09/2013 | US20130113563 Gain enhancement for cascode structure |
| 05/09/2013 | US20130113562 Current reuse electronic device based on magnetic coupling components |
| 05/09/2013 | US20130113561 Output mode switching amplifier |
| 05/09/2013 | US20130113554 Signal splitting apparatus suitable for use in a power amplifier |
| 05/09/2013 | US20130113553 Chopper |
| 05/08/2013 | EP2590323A1 Apparatus and method for implementing a differential drive amplifier and a coil arrangment |
| 05/08/2013 | EP2590322A1 Apparatus and method for implementing a differential drive amplifier and a coil arrangement |
| 05/08/2013 | EP2590321A2 Versatile audio power amplifier |
| 05/08/2013 | EP2590320A2 Switching system and method for control thereof |
| 05/08/2013 | DE102012219839A1 Flexibler, Anstiegsraten-gesteuerter Ausgabepuffer mit geringer Leistungsaufnahme Flexible, slew rate controlled output buffer with low power consumption |
| 05/08/2013 | CN202931256U Multifunctional power amplifier |
| 05/08/2013 | CN202931255U Power amplification driving circuit applied to electric-power carrier communication |
| 05/08/2013 | CN1754312B A method and a device for adjusting power amplifier properties |
| 05/08/2013 | CN103098369A Multiplexed amplifier with reduced glitching |
| 05/08/2013 | CN103098368A Output mode switching amplifier |
| 05/08/2013 | CN103098367A Apparatus and method for amplifying a signal from a transmitter |
| 05/08/2013 | CN103095239A Amplifier capable of controlling operating modes |
| 05/08/2013 | CN103095238A Audio output amplifier |
| 05/08/2013 | CN103095237A High output amplitude mixer based on logarithmic amplifier |
| 05/08/2013 | CN103095236A Difference frequency device based on exponential amplifier |
| 05/08/2013 | CN103095235A Mixer based on exponential amplifier |
| 05/08/2013 | CN103095234A Fully-differential operation transconductance amplifier |
| 05/08/2013 | CN103095233A Amplifier eliminating direct current offsets |
| 05/08/2013 | CN103095232A Dual slope logarithmic amplifier circuit structure |
| 05/08/2013 | CN103095231A Novel common mode feedback circuit |
| 05/08/2013 | CN103095230A High-gain and high-power millimeter wave power amplifier |
| 05/08/2013 | CN103095229A Radio frequency power amplifier |
| 05/08/2013 | CN103095228A Intermodulation suppression amplifying circuit and control method |
| 05/08/2013 | CN103095227A Worldwide interoperability for microwave access (WiMAX) radio frequency front end two-way amplifier |
| 05/08/2013 | CN103095225A Power amplification transistor circuit and method for improving stability of circuit |
| 05/08/2013 | CN103095223A Radio-frequency low-noise amplifier |
| 05/08/2013 | CN103095222A Active Balun with mismatch compensation technology |
| 05/08/2013 | CN103094315A Compound semiconductor device, method for manufacturing the same, and electronic circuit |
| 05/08/2013 | CN101933228B Lna having a post-distortion mode and a high-gain mode |
| 05/08/2013 | CN101911479B Differential amplifier system |
| 05/08/2013 | CN101729029B Electronic devices with calibrated radio frequency communications circuitry |
| 05/08/2013 | CN101630533B Sample and hold circuit and digital-to-analog converter circuit |
| 05/08/2013 | CN101178883B 数据驱动器及显示装置 A data driver and display device |
| 05/07/2013 | US8437723 Amplifier circuit and communication device |
| 05/07/2013 | US8437719 Method and system for multiple tuner application using a low noise broadband distribution amplifier |
| 05/07/2013 | US8437478 Systems and methods for improved over-current clipping |
| 05/07/2013 | US8437031 Image processing device and method for reducing an original image |
| 05/07/2013 | US8436684 Apparatus and method for low noise amplification |
| 05/07/2013 | US8436683 High efficiency audio amplifier |
| 05/07/2013 | US8436682 Fourth-order electrical current source apparatus, systems and methods |
| 05/02/2013 | WO2013063212A1 Systems and methods for performing multi-modal power amplification |
| 05/02/2013 | WO2013062975A1 Dual mode power amplifier control interface |
| 05/02/2013 | WO2013061679A1 High-frequency amplifier module and high-frequency amplifier module unit |
| 05/02/2013 | WO2013060376A1 Receiver circuit, phased-array receiver and radar system |
| 05/02/2013 | WO2012033801A3 Radio frequency communications system |
| 05/02/2013 | US20130109434 Multi-mode multi-band self-realigning power amplifier |
| 05/02/2013 | US20130108081 Amplifier |
| 05/02/2013 | US20130107933 Linear system for link training |
| 05/02/2013 | US20130106521 Operational Amplifying Device |
| 05/02/2013 | US20130106520 Hybrid class amplifier |
| 05/02/2013 | US20130106519 Radio frequency amplifier circuit |
| 05/02/2013 | US20130106518 Integrated circuit |
| 05/02/2013 | US20130106517 Power Amplifier Tube and Power Amplification Method |
| 05/02/2013 | US20130106516 Fast Settling Reference Voltage Buffer and Method Thereof |
| 05/02/2013 | US20130106515 Method and apparatus of common mode compensation for voltage controlled delay circuits |
| 05/02/2013 | US20130106514 High voltage driver amplifier for piezo haptics |
| 05/02/2013 | US20130106513 Differential amplifier |
| 05/02/2013 | US20130106512 Folded cascode operational amplifier |
| 05/02/2013 | US20130106511 Switching amplifier using inductor current feedback |
| 05/02/2013 | US20130106507 Systems and methods for performing multi-modal power amplification |
| 05/02/2013 | DE19841677B4 Integrierte, aktive Intergrator-Filterschaltung Built-in active integrator filter circuit |
| 05/01/2013 | EP2587667A1 Programmable low noise amplifier and methods for use therewith |
| 05/01/2013 | EP2587666A2 High-frequency amplifier |
| 05/01/2013 | EP2587665A1 Amplifier apparatus |
| 05/01/2013 | EP2587484A1 Integrated circuit with configurable output cell |
| 05/01/2013 | EP2413499B1 Switched capacitor circuit |
| 05/01/2013 | CN202918248U Audio frequency amplifier |
| 05/01/2013 | CN202918246U Preposed charge amplifier with low noise |