| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/27/2012 | US20120326783 Low-voltage power-efficient envelope tracker |
| 12/27/2012 | US20120326780 Coupler and amplifier arrangement |
| 12/27/2012 | DE102011106234A1 Verfahren und Vorrichtung zum Schutz eines Hochfrequenz-Leistungsverstärkers gegen Fehlabschluss Method and apparatus for protecting a high-frequency power amplifier against false statements |
| 12/26/2012 | EP2538557A1 Doherty power amplifier and implementation method therefor |
| 12/26/2012 | EP2538556A1 Power amplification tube and power amplification method |
| 12/26/2012 | EP2538555A1 Control of a loudspeaker output |
| 12/26/2012 | EP2538554A1 Amplification device and wireless transmission device provided with same, and gain adjusting method for amplification device |
| 12/26/2012 | EP2538551A1 Power amplifier device and power amplifier circuit |
| 12/26/2012 | EP2538550A1 Doherty power amplifier device and power amplification method |
| 12/26/2012 | EP2538549A1 Doherty power amplifier and implementation method therefor |
| 12/26/2012 | CN202634682U Circuit for improving dynamic performance of sound signal |
| 12/26/2012 | CN202634371U Power amplifier with adjustable bias current |
| 12/26/2012 | CN202634370U Double-channel 150W audio power amplifying circuit |
| 12/26/2012 | CN202634369U X-waveband solid state power amplifier |
| 12/26/2012 | CN202634367U Logarithmic amplifier with temperature compensation function |
| 12/26/2012 | CN202633312U Image sensor and source follower |
| 12/26/2012 | CN102844987A Pipeline analog to digital converter and analog to digital conversion method and dynamic differential amplifier |
| 12/26/2012 | CN102844983A Dual carrier amplifier circuits and methods |
| 12/26/2012 | CN102844982A Single supply class-d amplifier |
| 12/26/2012 | CN102844981A 放大器电路和无线通信装置 The amplifier circuit and the wireless communication device |
| 12/26/2012 | CN102843110A Three-level class D audio power amplifier |
| 12/26/2012 | CN102843109A Class D power amplifier chip |
| 12/26/2012 | CN102843108A Efficient linear radio frequency power amplifying device and method |
| 12/26/2012 | CN102843107A Radio frequency power amplifier circuit with automatic output power regulation function |
| 12/26/2012 | CN102843103A Bias circuit |
| 12/26/2012 | CN102841327A Transmitting device, power-amplifier unit and method for generating target signal |
| 12/26/2012 | CN102075833B Method, circuit and device for realizing 2.1 sound track power amplification by using double-channel circuit |
| 12/26/2012 | CN101938256B Fully integrated dual-band configurable radio-frequency power amplifier |
| 12/26/2012 | CN101699652B Symmetrical coupling wave-guided wave power synthesis amplifier |
| 12/26/2012 | CN101451864B Improved low power consumption two-wire system vortex shedding flowmeter |
| 12/26/2012 | CN101438492B Multi-mode power amplifier with high efficiency under backoff operation |
| 12/25/2012 | US8339205 Low power wide-band amplifier with reused current |
| 12/25/2012 | US8339204 Semiconductor device |
| 12/25/2012 | US8339203 PA load-line tuning with capacitors around a balun |
| 12/25/2012 | US8339202 Current sensing system and method |
| 12/25/2012 | US8339201 Wideband doherty amplifier circuit having a constant impedance combiner |
| 12/25/2012 | US8339200 Wide-swing telescopic operational amplifier |
| 12/25/2012 | US8339199 Pre-amplifier |
| 12/25/2012 | US8339198 Negative capacitance synthesis for use with differential circuits |
| 12/25/2012 | US8339197 Circuitry including matched transistor pairs |
| 12/25/2012 | US8339196 Combined cell doherty power amplification apparatus and method |
| 12/25/2012 | US8339158 High speed dynamic comparative latch |
| 12/20/2012 | WO2012173112A1 Amplifier and signal processing device |
| 12/20/2012 | WO2012172927A1 Tunneling current circuit |
| 12/20/2012 | WO2012172627A1 Audio power amplifier |
| 12/20/2012 | WO2012172544A1 Method and system for boosting the supply of power amplifier |
| 12/20/2012 | WO2012171938A2 Power transistor gate driver |
| 12/20/2012 | WO2012125657A3 Apparatus and methods for capacitive load reduction |
| 12/20/2012 | US20120320642 Compound semiconductor device and method of manufacturing the same |
| 12/20/2012 | US20120319782 Class e power amplifier |
| 12/20/2012 | US20120319781 Receiver Circuits for Differential and Single-Ended Signals |
| 12/20/2012 | US20120319780 Wideband doherty amplifier circuit having a constant impedance combiner |
| 12/20/2012 | US20120319779 Transformer and cmos power amplifier including the same |
| 12/20/2012 | US20120319778 Semiconductor power amplifier |
| 12/20/2012 | US20120319777 Method and Apparatus for Biasing Rail to Rail DMOS Amplifier Output Stage |
| 12/20/2012 | US20120319773 Power generating circuit and switching circuit |
| 12/20/2012 | US20120319772 Flexible multi-channel amplifiers via wavefront muxing techniques |
| 12/20/2012 | US20120319771 Apparatus for calibrating amplitude and phase errors, multiport amplifier including the same, and method of amplifying the multiport amplifier |
| 12/20/2012 | US20120319769 Combiner-less multiple input single output (miso) amplification with blended control |
| 12/20/2012 | DE112009005411T5 Leistungsverstärkerschaltung und Anpassungsschaltung A power amplifier circuit and adaptation circuit |
| 12/20/2012 | DE102012105260A1 Breitband-Doherty-Verstärkerschaltung mit Konstantimpedanzkombinierer High-Doherty amplifier circuit with Konstantimpedanzkombinierer |
| 12/20/2012 | DE102010054897B4 Verstärkerschaltung für eine Zwei-Draht-Schnittstelle, Mikrofonverstärker sowie Schaltungsanordnung zur Umwandlung eines Sprachsignals Amplifier circuit for a two-wire interface, microphone and amplifier circuit arrangement for conversion of a speech signal |
| 12/20/2012 | CA2833248A1 Amplifier and signal processing device |
| 12/19/2012 | EP2536026A1 Power amplification tube and power amplification method |
| 12/19/2012 | EP2536023A2 Method and apparatus for biasing rail to rail DMOS amplifier output stage |
| 12/19/2012 | EP2534756A1 Push-pull amplifier having inductive common mode decoupling |
| 12/19/2012 | EP2534755A1 Wide band lna with noise canceling |
| 12/19/2012 | CN202617068U Current-type stimulation amplifying device of rotary transformer |
| 12/19/2012 | CN202617067U Push-pull amplifier circuit |
| 12/19/2012 | CN102835027A Broadband analog radio-frequency components |
| 12/19/2012 | CN102835026A Amplifier circuit, detector arrangement and method for operating an amplifier |
| 12/19/2012 | CN102835025A Low output impedance RF amplifier |
| 12/19/2012 | CN102832895A High-precision operational amplifier adopting data sampling |
| 12/19/2012 | CN102832894A D-type power amplifying method |
| 12/19/2012 | CN102832893A D-type power amplifier |
| 12/19/2012 | CN102832892A Power amplifier for Ku-waveband for satellite |
| 12/19/2012 | CN102832891A Method and apparatus for biasing rail to rail DMOS amplifier output stage |
| 12/19/2012 | CN102832890A Radio frequency low-temperature low-noise amplifier system of thermoelectric refrigeration |
| 12/19/2012 | CN102832889A Method, device and system for adjusting radio frequency load output |
| 12/19/2012 | CN102832887A High-fidelity D type voice frequency amplifier |
| 12/19/2012 | CN102832432A Radial linear power divider/synthesizer |
| 12/19/2012 | CN102832231A Compound semiconductor device and method of manufacturing the same |
| 12/19/2012 | CN101785180B Broadband power amplifier |
| 12/19/2012 | CN101447768B 放大电路 Amplifier circuit |
| 12/19/2012 | CN101409572B Module for matching single or multi-system signal |
| 12/19/2012 | CN101409534B Differential amplifier with single ended output and its realization method |
| 12/18/2012 | US8334724 Open-loop transimpedance amplifier for infrared diodes |
| 12/18/2012 | US8334496 3D active imaging device with a circuit for integrating and timestamping incident radiation on a photosensitive element |
| 12/13/2012 | WO2012170582A2 Switched-capacitor dc blocking amplifier |
| 12/13/2012 | WO2012169944A1 Power amplifier assembly comprising suspended strip lines |
| 12/13/2012 | WO2012168989A1 Operational amplifier |
| 12/13/2012 | US20120314880 Stereo Headset Amplifier |
| 12/13/2012 | US20120314734 Reconstruction filter with built-in balun |
| 12/13/2012 | US20120313713 Switching Power Supply |
| 12/13/2012 | US20120313712 Apparatus and method for a smooth powerup of a reference signal |
| 12/13/2012 | US20120313710 Performance optimization of power amplifier |
| 12/13/2012 | US20120313708 Method and apparatus for automatically adjusting the bandwidth of an electronic amplifier |
| 12/13/2012 | US20120313707 Push-pull amplifier having inductive common mode decoupling |
| 12/13/2012 | US20120313706 Unbalanced/balanced conversion differential amplifier |
| 12/13/2012 | US20120313705 Method for introducing feedback in a FET amplifier |