| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 11/07/2012 | CN102769432A Electrical isolation device |
| 11/07/2012 | CN102006015B SiGe bipolar complementary metal oxide semiconductor (BiCMOS) radio-frequency power amplifier |
| 11/07/2012 | CN101908881B Directional coupler and radio-frequency power amplifier containing same |
| 11/07/2012 | CN101867348B Radio frequency solid broadband high-power amplifier module |
| 11/07/2012 | CN101496295B 发送机 Transmitter |
| 11/07/2012 | CN101267705B Constant current circuit and light emitting diode drive device using the constant current circuit |
| 11/06/2012 | US8306494 Method and system for a single-ended input low noise amplifier with differential output |
| 11/06/2012 | US8306437 Optical receiver |
| 11/06/2012 | US8305148 Bias point setting for third order linearity optimization of class A amplifier |
| 11/06/2012 | US8305147 Power amplifier |
| 11/06/2012 | US8305146 Multi stage amplifier |
| 11/06/2012 | US8305145 Receiving circuit |
| 11/06/2012 | US8305144 Circuits and methods for controlling quiescent current in amplifiers |
| 11/06/2012 | US8305143 Amplifier circuit and transceiver |
| 11/06/2012 | US8305141 Distributed Doherty power amplifier |
| 11/06/2012 | US8305140 Linear, large swing active resistive circuit and method |
| 11/06/2012 | US8305060 Switching power supply device and a semiconductor integrated circuit |
| 11/01/2012 | WO2012148843A1 Isolated zero degree reactive radio frequency high power combiner |
| 11/01/2012 | WO2012147784A1 Analog multiplier circuit, variable gain amplifier, detector circuit, and physical quantity sensor |
| 11/01/2012 | WO2012147347A1 High-frequency amplifying device |
| 11/01/2012 | WO2012146016A1 Power amplifier device and power amplifier circuit |
| 11/01/2012 | WO2012146012A1 Base station radio frequency system and protection method of radio frequency power amplifier |
| 11/01/2012 | WO2012146011A1 Power amplification tube and power amplification method |
| 11/01/2012 | WO2012146009A1 Doherty power amplifier device and power amplification method |
| 11/01/2012 | WO2012146004A1 Power amplification tube and power amplification method |
| 11/01/2012 | WO2012146003A1 Power amplification tube and power amplification method |
| 11/01/2012 | WO2012146002A1 Doherty power amplifier and implementation method therefor |
| 11/01/2012 | WO2012118921A3 Power supply controller for multi-gain step rf power amplifier |
| 11/01/2012 | WO2012116668A3 High frequency power multiplier solution |
| 11/01/2012 | US20120274406 Low noise-linear power distributed amplifier |
| 11/01/2012 | US20120274405 Amplifier |
| 11/01/2012 | US20120274402 High electron mobility transistor |
| 11/01/2012 | US20120274401 Semiconductor device and method for driving the same |
| 11/01/2012 | US20120273659 Photoelectric conversion circuit |
| 10/31/2012 | EP2518965A1 Transmission circuit |
| 10/31/2012 | EP2518901A1 Rf signal generation circuit and wireless transmitter |
| 10/31/2012 | EP2518896A1 Amplifier |
| 10/31/2012 | DE10311096B4 Elektronische Schaltung für einen Transimpedanzverstärker Electronic circuit for a transimpedance amplifier |
| 10/31/2012 | DE10251702B4 Differenzverstärker Differential amplifier |
| 10/31/2012 | DE102009057225B4 Elektronische Leistungsverstärkerstufe und Leistungsverstärkerendstufe Electronic power amplifier stage and power amplifier power amplifier |
| 10/31/2012 | DE102008051630B9 Hochfrequenzleistungsverstärker High frequency power amplifier |
| 10/31/2012 | DE102007038379B4 Verstärkerschaltkreis, Pipeline-Analog-Digital-Konverter, Schaltkreis und Verfahren An amplifier circuit, pipeline analog-to-digital converter circuit and method |
| 10/31/2012 | CN202513884U Broken line direct-current amplifier |
| 10/31/2012 | CN202513883U High-power amplifier |
| 10/31/2012 | CN202513882U Multi-carrier power amplifier |
| 10/31/2012 | CN1820413B Circuit for varying gain of preamplifier |
| 10/31/2012 | CN102763325A Amplification device and wireless transmission device provided with same, and gain adjusting method for amplification device |
| 10/31/2012 | CN102763189A High-frequency supply of a load without impedance matching |
| 10/31/2012 | CN102761311A Micro assembly process for millimeter-wave circuit |
| 10/31/2012 | CN102760930A Millimeter wave power synthesis amplifier |
| 10/31/2012 | CN101595636B RF amplification device |
| 10/30/2012 | USRE43776 Layout technique for matched resistors on an integrated circuit substrate |
| 10/30/2012 | US8301038 Electronic circuit and communication system |
| 10/30/2012 | US8299857 RF power amplifier including broadband input matching network |
| 10/30/2012 | US8299856 Power transistor output match network with high Q RF path and low Q low frequency path |
| 10/30/2012 | US8299855 Power amplification systems and methods |
| 10/30/2012 | US8299854 Circuit for power amplification of an input signal and signal emission system incorporating such a circuit |
| 10/30/2012 | US8299851 High efficiency linear amplifier |
| 10/26/2012 | WO2012145540A1 Rf power amplifiers with improved efficiency and output power |
| 10/26/2012 | WO2012144392A1 Power supply circuit |
| 10/26/2012 | WO2012144104A1 Wireless communication apparatus |
| 10/26/2012 | WO2012143511A2 Linear amplifier arrangement for high-frequency signals |
| 10/26/2012 | WO2012099891A3 Single die power amplifier with closed loop power control |
| 10/26/2012 | WO2012094461A3 Circuit and method for reducing input leakage in chopped amplifier during overload conditions |
| 10/25/2012 | US20120270512 Transfer Gate Circuit and Power Combining Circuit, Power Amplifying Circuit, Transmission Device, and Communication Device Using the Transfer Gate Circuit |
| 10/25/2012 | US20120268213 High power amplifier |
| 10/25/2012 | US20120268212 Amplifier Arrangement and Method for Operating an Amplifier Arrangement |
| 10/25/2012 | US20120268211 Power amplifier |
| 10/25/2012 | US20120268210 Impedance matching arrangement for amplifier having split shunt capacitor and amplifier including the same |
| 10/25/2012 | US20120268209 Pulse electric power amplification apparatus |
| 10/25/2012 | US20120268208 Semiconductor integrated circuit device |
| 10/25/2012 | US20120268207 Integrated circuit |
| 10/25/2012 | US20120268205 Rf power amplifiers with improved efficiency and output power |
| 10/25/2012 | US20120268204 Apparatus and method for equalization |
| 10/25/2012 | US20120268202 Digital charge amplifier and method for converting charge signals into digital signals |
| 10/25/2012 | US20120268201 Very High Efficiency Flexible Travelling Wave Amplifier |
| 10/25/2012 | US20120268178 Fully differential adaptive bandwidth PLL with differential supply regulation |
| 10/25/2012 | US20120268169 Differential current signal circuit |
| 10/25/2012 | US20120268086 Power supply device |
| 10/25/2012 | DE102007027448B4 Verstärkerschaltung mit einem Ausgangstransistor zum Treiben einer komplexen Last Amplifier circuit having an output transistor for driving a resistive load |
| 10/24/2012 | EP2515435A2 Power amplifier |
| 10/24/2012 | EP2514091A1 Differential gm-boosting circuit and applications |
| 10/24/2012 | EP1569350B1 Power limit device and digital radio transmitter using the same |
| 10/24/2012 | CN202503479U A class AB operational amplifier with high gain and a high power supply rejection ration |
| 10/24/2012 | CN202503478U Bidirectional radio frequency power amplifier |
| 10/24/2012 | CN202503477U Mini-size signal amplifier |
| 10/24/2012 | CN1819715B Lound speaker with double-magnetic pole and moving coil, its playing and controlling circuit for cell-phone |
| 10/24/2012 | CN102754337A Push-pull amplifier having inductive common mode decoupling |
| 10/24/2012 | CN102754336A Digital amplifier |
| 10/24/2012 | CN102754334A Power amplifier with feedback impedance for stable output |
| 10/24/2012 | CN102754333A Wide band LNA with noise canceling |
| 10/24/2012 | CN102751957A Double-frequency amplifier and double-frequency receiver system |
| 10/24/2012 | CN102751956A Switched capacitor common-mode feedback structure |
| 10/24/2012 | CN102751955A Preamplifier for rapid spot size measurement |
| 10/24/2012 | CN102751954A Audio player and method |
| 10/24/2012 | CN102751953A Trans-impedance amplifier with stability compensation device for optical communication |
| 10/24/2012 | CN102751952A Impedance matching circuit and impedance matching method of power amplifier |
| 10/24/2012 | CN102751950A Digital predistortion method of multirange multimode radio frequency power amplifier |
| 10/23/2012 | US8295796 High frequency circuit |
| 10/23/2012 | US8295510 Power-saving amplifying device |