| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 10/11/2011 | US8035449 Capacitively-coupled distributed amplifier with baseband performance |
| 10/11/2011 | US8035448 Differential amplifier that compensates for process variations |
| 10/11/2011 | US8035445 Frequency response compensation amplifier arrangements |
| 10/11/2011 | US8035444 Amplifier apparatus |
| 10/11/2011 | US8035422 Transconductance amplifier with a filter for rejecting noise outside the useful band |
| 10/11/2011 | US8035362 Amplifier system with DC-component control |
| 10/11/2011 | US8035317 Optocoupler system with reduced power consumption and pulse width distortion |
| 10/11/2011 | US8035073 Switched capacitor input stage for imaging front-ends |
| 10/11/2011 | US8035072 Optical semiconductor device and infrared data communication apparatus eliminating low frequency component |
| 10/06/2011 | WO2011123183A1 Variable class characteristic amplifier |
| 10/06/2011 | WO2011121954A1 Digital amplifier |
| 10/06/2011 | WO2011120996A1 Efficient supply voltage |
| 10/06/2011 | WO2011120757A1 Amplifier circuit, detector arrangement and method for operating an amplifier |
| 10/06/2011 | WO2011084384A3 Amplifier with improved input resistance and controlled common mode |
| 10/06/2011 | US20110243352 Concept, method and apparatus of improved distortion switched-mode amplifier |
| 10/06/2011 | US20110242145 Display device, differential amplifier, and data line drive method for display device |
| 10/06/2011 | US20110241783 Detector circuit and system for a wireless communication |
| 10/06/2011 | US20110241782 Power amplifier |
| 10/06/2011 | US20110241781 Variable Class Characteristic Amplifier |
| 10/06/2011 | US20110241780 Amplifier circuit, signal processor circuit, and semiconductor integrated circuit device |
| 10/06/2011 | US20110241779 Front-end equalizer and amplifier circuit |
| 10/06/2011 | US20110241778 Peaking circuit, method for adjusting peaking circuit, differential amplifier installing peaking circuit, laser diode driving circuit installing peaking circuit, and data processing unit installing peaking circuit |
| 10/06/2011 | US20110241777 Conversion circuit from single phase signal to differential phase signal |
| 10/06/2011 | US20110241774 Versatile Audio Power Amplifier |
| 10/06/2011 | US20110241773 Multi-Channel Radio Frequency Generator |
| 10/06/2011 | US20110241770 Amplifier for processing differential input using amplifier circuits with different driving capabilities and/or different frequency compensation characteristics |
| 10/06/2011 | DE102010013958A1 Differenzverstärker mit einem Rail-to-Rail-Eingangsspannungsbereich Differential amplifier having a rail-to-rail input voltage range |
| 10/06/2011 | DE102010013318A1 Verstärkerschaltung, Detektoranordnung und Verfahren zum Betreiben eines Verstärkers Amplifier circuit, detector assembly and method for operating an amplifier |
| 10/05/2011 | EP2372906A1 Power amplifier |
| 10/05/2011 | EP2372905A1 Efficiency-improved doherty amplifier arrangement |
| 10/05/2011 | EP2372904A1 Power amplication device |
| 10/05/2011 | EP2372903A1 Method and apparatus for aligning feed forward loops |
| 10/05/2011 | EP2371059A1 Operational transconductance amplifier having two amplification stages. |
| 10/05/2011 | EP2078334B1 Voltage boosting stage |
| 10/05/2011 | EP1886405B1 System and method for providing an input to a distributed power amplifying system |
| 10/05/2011 | CN202004730U Dual-mode working audio frequency amplifier |
| 10/05/2011 | CN202004729U Solid-state high-power amplification module |
| 10/05/2011 | CN202004728U D-type audio power amplifier |
| 10/05/2011 | CN202004727U Digital power amplifier |
| 10/05/2011 | CN202004726U Audio frequency power amplifier for urban railway system |
| 10/05/2011 | CN202004315U Double-channel laser tuning control circuit |
| 10/05/2011 | CN102210100A Circuit arrangement for amplifying a digital signal, and transceiver circuit for a bus system |
| 10/05/2011 | CN102210097A High frequency differential amplifier and transceiver circuit |
| 10/05/2011 | CN102208900A Switched mode pre-amplification and AM feedback for on-coil switched mode amplifiers |
| 10/05/2011 | CN102208899A Power amplifier |
| 10/05/2011 | CN102208898A Differential amplifier circuit |
| 10/05/2011 | CN101488729B Multi-segment primary and multi-turn secondary transformer for power amplifier systems |
| 10/05/2011 | CN101454971B Mode selection amplifier circuit usable in a signal acquisition probe |
| 10/04/2011 | US8031547 Differential sense amplifier |
| 10/04/2011 | US8031006 Method and apparatus for an LNA with high linearity and improved gain control |
| 10/04/2011 | US8031004 Active balun with stacked structure |
| 10/04/2011 | US8031003 Solid-state RF power amplifier for radio transmitters |
| 10/04/2011 | US8031002 Buffer amplifier |
| 10/04/2011 | US8031001 Differential amplifier, reference voltage generating circuit, differential amplifying method, and reference voltage generating method |
| 10/04/2011 | US8031000 Differential amplifier, sample-and-hold circuit, and amplifier circuit |
| 10/04/2011 | US8030999 Low voltage operational transconductance amplifier circuits |
| 10/04/2011 | US8030994 Driver for an inductive load |
| 10/04/2011 | US8030763 Semiconductor package with reduced inductive coupling between adjacent bondwire arrays |
| 10/04/2011 | US8030609 Read circuit, variable resistive element device, and imaging device |
| 10/04/2011 | US8030606 Pixel with differential readout |
| 10/04/2011 | CA2476246C Feed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier |
| 10/04/2011 | CA2388039C Improved floating, balanced output circuit |
| 09/30/2011 | DE202011103692U1 Signalverstärker mit Amplitudenbegrenzung Signal amplifier clipping |
| 09/29/2011 | WO2011119632A2 Discrete time operational transconductance amplifier for switched capacitor circuits |
| 09/29/2011 | WO2011119103A1 A gm-ratioed amplifier |
| 09/29/2011 | WO2011118311A1 Class d amplifier |
| 09/29/2011 | WO2011084592A3 Amplifier circuit |
| 09/29/2011 | US20110237206 Switched power amplifier topology providing high efficiency |
| 09/29/2011 | US20110235831 Drive device |
| 09/29/2011 | US20110235827 Amplifier circuit and methods of operation thereof |
| 09/29/2011 | US20110235689 Power amplifier and semiconductor integrated circuit |
| 09/29/2011 | US20110234440 Amplifying circuit and analog-digital converting circuit including same |
| 09/29/2011 | US20110234323 Amplification control circuit |
| 09/29/2011 | US20110234322 Apparatus and method for reducing current noise |
| 09/29/2011 | US20110234321 Multi-function monolithic microwave integrated circuit (mmic) operating as amplifier switch |
| 09/29/2011 | US20110234319 Differential amplifier circuit |
| 09/29/2011 | US20110234318 Low voltage differential signal driver with reduced power consumption |
| 09/29/2011 | US20110234317 Differential driver circuit |
| 09/29/2011 | US20110233385 Avalanche Photodiode Circuits |
| 09/29/2011 | DE10248149B4 Treiberschaltung mit frequenzabhängiger Signalrückkopplung Driver circuit with frequency-dependent signal feedback |
| 09/29/2011 | DE102010012433A1 Verstärkerschaltung und Verfahren zur Konditionierung eines Ausgangsstromsignals eines Detektorelements Amplifier circuit and method for conditioning an output current signal of a detector element |
| 09/28/2011 | EP2369742A1 Amplifier circuit and method for conditioning an output current signal of a detecting element |
| 09/28/2011 | EP2369741A1 Capacitive load driving device and fluid ejection device |
| 09/28/2011 | EP2368324A1 Sub sampling electrical power conversion |
| 09/28/2011 | EP2248256B1 Lna having a post-distortion mode and a high-gain mode |
| 09/28/2011 | EP2002558B1 High efficiency converter providing switching amplifier bias |
| 09/28/2011 | CN201994915U 一种低成本可编程语音输出电路 A low-cost programmable voice output circuit |
| 09/28/2011 | CN1582528B Ping-pong amplifier with auto-zeroing and chopping |
| 09/28/2011 | CN1575544B Auto-zeroed ping-pong amplifier with low transient switching |
| 09/28/2011 | CN102204401A A passive transmitter architecture with switchable outputs for wireless applications |
| 09/28/2011 | CN102204087A Amplifier with improved ESD protection circuitry |
| 09/28/2011 | CN102204086A Headphone amplifier circuit |
| 09/28/2011 | CN102201790A Coupling blocking method and operational amplifier |
| 09/28/2011 | CN101656514B Gain controllable parallel radio-frequency power amplifier based on matching share |
| 09/28/2011 | CN101515785B Feedforward amplifier and control method thereof |
| 09/28/2011 | CN101447785B Differential drive circuit and communication device |
| 09/28/2011 | CN101369801B Distortion sensing means, automatic distortion avoiding device, and amplifier |
| 09/28/2011 | CN101252344B Cryogenic receiving amplifier and amplifying method |
| 09/28/2011 | CN101101491B Power supply circuit |
| 09/27/2011 | US8027594 Receiving apparatus and electronic device using the same |