| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 04/11/2007 | CN2888747Y A silicon controlled power amplifier |
| 04/11/2007 | CN2888592Y Flight data recording device |
| 04/11/2007 | CN1947330A 可编程无线收发器 Programmable wireless transceivers |
| 04/11/2007 | CN1945973A Voltage-current conversion circuit device |
| 04/11/2007 | CN1945966A Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 04/11/2007 | CN1310423C Output stage circuit of power amplifier |
| 04/10/2007 | US7203149 PLL circuit and data read-out circuit |
| 04/10/2007 | US7202863 Semiconductor device, and display device and electronic device utilizing the same |
| 04/10/2007 | US7202749 AC coupling technique for improved noise performance and simple biasing |
| 04/10/2007 | US7202748 Ultra-wideband constant gain CMOS amplifier |
| 04/10/2007 | US7202747 Self-tuning variable impedance circuit for impedance matching of power amplifiers |
| 04/10/2007 | US7202746 Multiple-stage operational amplifier and methods and systems utilizing the same |
| 04/10/2007 | US7202745 Power amplifier circuit |
| 04/10/2007 | US7202744 Transresistance amplifier |
| 04/10/2007 | US7202742 Digital amplification device |
| 04/10/2007 | US7202741 Highly linear variable gain amplifier |
| 04/10/2007 | US7202740 Gain boosting for tuned differential LC circuits |
| 04/10/2007 | US7202739 CMOS amplifiers with frequency compensating capacitors |
| 04/10/2007 | US7202738 Accurate voltage to current converters for rail-sensing current-feedback instrumentation amplifiers |
| 04/10/2007 | US7202736 CDMA power amplifier design for low and high power modes |
| 04/10/2007 | US7202735 Multi-band power amplifier module for wireless communication devices |
| 04/10/2007 | US7202734 Electronically tuned power amplifier |
| 04/10/2007 | US7202733 Transconductance amplifiers with compensation |
| 04/10/2007 | US7202732 Transimpedance amplifier with linearized transconductance feedback |
| 04/10/2007 | US7202714 Amplifier circuit with output delay selectively changed according to common mode voltage level, associated replica delay circuit and internal clock generator |
| 04/05/2007 | WO2007005376A3 Automatic bias control circuit for linear power amplifiers |
| 04/05/2007 | WO2006117599A3 Single - ended to differential transformer circuit |
| 04/05/2007 | WO2006102466A3 High power doherty amplifier using multi-stage modules |
| 04/05/2007 | WO2005107398A3 Minature bidirectional amplifier |
| 04/05/2007 | US20070076904 Microphone preamplifier |
| 04/05/2007 | US20070076814 Amplifier circuit and amplifying method |
| 04/05/2007 | US20070075784 Radio frequency power amplifier |
| 04/05/2007 | US20070075783 Handset Radiofrequency Front End Module In Fine Pitch Quad Flat No Lead (FQFP-N) Package |
| 04/05/2007 | US20070075781 Power amplifier system provided with improved protection function |
| 04/05/2007 | US20070075780 Apparatus and method for adaptive biasing of a Doherty amplifier |
| 04/05/2007 | US20070075779 Common gate with resistive feed-through low noise amplifier |
| 04/05/2007 | US20070075778 Amplifier systems with low-noise, constant-transconductance bias generators |
| 04/05/2007 | US20070075777 Device and method of eliminating DC offset |
| 04/05/2007 | US20070075776 Output driver with common mode feedback |
| 04/05/2007 | US20070075775 Amplifier |
| 04/05/2007 | US20070075774 Variable gain amplifier |
| 04/05/2007 | US20070075773 Amplifier having a regulation system controlled by the output stage |
| 04/05/2007 | US20070075772 Semiconductor integrated apparatus and black level correction method for image sensor |
| 04/05/2007 | US20070075771 Anti-theft structure for mobile phone |
| 04/05/2007 | US20070075767 Inductor element containing circuit board and power amplifier module |
| 04/05/2007 | US20070075751 Receiving apparatus and method thereof |
| 04/05/2007 | US20070075223 Light-receiving amplifier circuit and optical pick-up device using the same |
| 04/05/2007 | US20070075222 Photocurrent amplifier circuit and optical pick-up device |
| 04/05/2007 | DE19710474B4 Übertragungsleistungserfassungsschaltung zum Erfassen einer Übertragungsleistung eines Funksignals Transmission power detecting circuit for detecting a transmission power of a radio signal |
| 04/05/2007 | DE102004025437B4 Selbstschwingender Verstärker D-Klasse mit Frequenzteiler The self-oscillating amplifier class D with frequency divider |
| 04/05/2007 | DE10136503B4 Abtastverstärkerschaltung und Ausgabedatenverstärker eines Halbleiterbauelementes Sense amplifier and amplifier output data of a semiconductor device |
| 04/04/2007 | EP1770855A1 Class D amplifier |
| 04/04/2007 | EP1770821A1 Mode translating waveguide adapter for a quasi-optic grid array |
| 04/04/2007 | EP1770777A2 Semiconductor device |
| 04/04/2007 | EP1683269A4 Electronically programmable multimode circuit |
| 04/04/2007 | EP1131886B1 Multi-reference, high-accuracy switching amplifier |
| 04/04/2007 | CN2886917Y 温度补偿电路 Temperature compensation circuit |
| 04/04/2007 | CN1943121A Transmitter and radio communication device |
| 04/04/2007 | CN1943120A Transmission modulation apparatus, communication apparatus and mobile wireless apparatus |
| 04/04/2007 | CN1943108A High speed rail to rail phase splitter for providing a symmetrical differential output signal having low skew |
| 04/04/2007 | CN1943107A High speed differential receiver with rail to rail common mode operation having a symmetrical differential output signal with low skew |
| 04/04/2007 | CN1941630A Open-loop slew-rate controlled output driver |
| 04/04/2007 | CN1941616A Differential amplifier, digital-to-analog converter and display device |
| 04/04/2007 | CN1941615A Differential amplifier, digital-to-analog converter, and display device |
| 04/04/2007 | CN1941614A 差动放大器 Differential amplifier |
| 04/04/2007 | CN1941613A D类放大器 Class D Amplifier |
| 04/03/2007 | US7200370 Power amplifier having enhanced swing cascode architecture |
| 04/03/2007 | US7200369 LINC power transmitter |
| 04/03/2007 | US7200187 Modulator for digital amplifier |
| 04/03/2007 | US7200099 Low voltage differential signal transmitting circuit and optical disc recording apparatus |
| 04/03/2007 | US7199744 Circuits and methods for reducing interference from switched mode circuits |
| 04/03/2007 | US7199670 Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design |
| 04/03/2007 | US7199669 Dual gate cascade amplifier |
| 04/03/2007 | US7199668 Integrated circuit and optical pickup device |
| 04/03/2007 | US7199667 Integrated power amplifier arrangement |
| 04/03/2007 | US7199666 Construction and use of preamps having discrete gain states |
| 04/03/2007 | US7199665 Single to dual non-overlapping converter |
| 04/03/2007 | US7199663 Use of analog-valued floating-gate transistors for parallel and serial signal processing |
| 04/03/2007 | US7199662 Bias circuit for a display driver operational amplifier |
| 04/03/2007 | US7199661 Variable gain amplification using Taylor expansion |
| 04/03/2007 | US7199660 Variable gain amplifier |
| 04/03/2007 | US7199659 Non-match power amplifier and method for increased output 1 dB compression point |
| 04/03/2007 | US7199658 Circuits and methods for implementing power amplifiers for millimeter wave applications |
| 04/03/2007 | US7199656 Amplifiers with compensation |
| 04/03/2007 | US7199655 Multistage amplifier circuit without interstage coupling capacitor |
| 04/03/2007 | US7199652 Amplifier; and transmitter and communication device incorporating the same |
| 04/03/2007 | US7199647 Constant current circuit |
| 04/03/2007 | US7199644 Bias circuit having transistors that selectively provide current that controls generation of bias voltage |
| 04/03/2007 | US7199628 Power supply apparatus for delay locked loop and method thereof |
| 03/29/2007 | WO2007034141A1 Radio frequency signal device biasing circuit |
| 03/29/2007 | WO2007033809A1 Circuit arrangement for supplying a photodiode with a bias |
| 03/29/2007 | WO2007033646A2 Feedback correction for switching amplifiers |
| 03/29/2007 | WO2006105413A3 Doherty power amplifier with phase compensation |
| 03/29/2007 | US20070069822 Device for measuring very short current pulses |
| 03/29/2007 | US20070069821 Active balun device |
| 03/29/2007 | US20070069819 Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits to effectively drive a power transistor |
| 03/29/2007 | US20070069818 Multilevel power amplifier architecture using multi-tap transformer |
| 03/29/2007 | US20070069817 Adaptable voltage control for a variable gain amplifier |
| 03/29/2007 | US20070069816 Method for transconductance linearization for DC-coupled applications |
| 03/29/2007 | US20070069815 Operational amplifier |