Patents
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
06/2010
06/17/2010WO2010067644A1 Voltage generator, control circuit, vector synthesis type phase shifter and optical transceiver
06/17/2010WO2010066853A2 Multiport amplifier adjustment
06/17/2010US20100150357 Amplifier circuit and method of signal amplification
06/17/2010US20100148878 Amplifier with dither
06/17/2010US20100148877 Integrated power amplifiers for use in wireless communication devices
06/17/2010US20100148873 Techniques for improving amplifier linearity
06/17/2010US20100148872 Power amplifier having transformer
06/17/2010US20100148871 Systems and methods for an adaptive bias circuit for a differential power amplifier
06/17/2010US20100148870 Adaptive feedback cascode
06/17/2010US20100148869 Power amplification circuit having transformer
06/17/2010US20100148868 Differential amplifier
06/17/2010US20100148864 Amplifier Control Device
06/17/2010US20100148863 Arrangement for reducing interference
06/17/2010US20100148862 Method and apparatus for enhancing performance of doherty power amplifier
06/17/2010US20100148861 Method of forming a charge pump controller and structure therefor
06/17/2010US20100148038 Light receiving circuit
06/17/2010US20100148037 Pixel array with shared readout circuitry
06/17/2010DE102008061254A1 Switching arrangement for producing microwave oscillations, has oscillator-switch with two amplifying elements, particularly transistors and resonator
06/17/2010DE102005020319B4 Verstärkeranordnung mit einem umschaltbaren Verstärkungsfaktor und Verfahren zum Verstärken eines zu verstärkenden Signals mit einem umschaltbaren Verstärkungsfaktor Amplifier arrangement with a switchable gain and method for amplifying a signal to be amplified with a switchable gain factor
06/17/2010CA2746518A1 Multiport amplifier adjustment
06/16/2010EP2195926A2 Tunable rf filter
06/16/2010EP2195924A1 Signal amplifier structure for radio transmitter
06/16/2010EP2195923A1 A device for and a method of generating signals
06/16/2010EP2195922A2 Automatic common-mode rejection calibration
06/16/2010EP2195921A2 Integrated doherty amplifier
06/16/2010CN201509182U MOS efficient carrier digital amplifying circuit
06/16/2010CN1960173B D power output stage
06/16/2010CN1922788B Load insensitive power amplifier
06/16/2010CN1868118B Method and apparatus for resetting a buffer amplifier
06/16/2010CN1792038B A sigma-delta modulator and sigma-delta modulating method
06/16/2010CN101741385A Analog-to-digital converter of stage-resolution scalable sharing operational amplifier
06/16/2010CN101741329A Complementary input circularly folding gain bootstrap operational transconductance amplifier
06/16/2010CN101741328A Complementary input circularly folding operational transconductance amplifier
06/16/2010CN101741327A Compensated operational amplification circuit and related method
06/16/2010CN101741326A Rf功率放大器 Rf Power Amplifier
06/16/2010CN101741325A Class-D audio-frequency power amplifier with carrier wave adjustable module and carrier wave modulation method thereof
06/16/2010CN101741324A Product-to-sum type D power amplifier and method thereof
06/16/2010CN101741323A Radio frequency power amplifier
06/16/2010CN101741322A Power amplifiers with discrete power control
06/16/2010CN101741321A Sound box non-contact inductive control system and control method thereof
06/16/2010CN101741320A Wide-area high-resolution programmable gain amplifier
06/16/2010CN101741319A Heat regulating device and method for D-type audio amplifier and D-type audio amplifier with heat regulation
06/16/2010CN101741318A Method for controlling degree of distortion of sine vibrating table
06/16/2010CN101741316A Gain variable broadband radio frequency low-noise amplifier
06/16/2010CN101739963A Drive circuit system and method for enhancing slew rate of operational amplifier
06/16/2010CN101325404B Frequency-hopping carrier generator
06/16/2010CN101162893B Variable gain amplifiers and relative transduction unit
06/16/2010CN101076281B Apparatus and method for reducing interference
06/15/2010US7739522 Efficient power supply for rapidly changing power requirements
06/15/2010US7738619 Transmitter
06/15/2010US7737790 Cascode amplifier and method for controlling current of cascode amplifier
06/15/2010US7737789 Broadband active balun
06/15/2010US7737788 Cascode gain boosting system and method for a transmitter
06/15/2010US7737787 Impedance-mapping amplifier circuit with exclusively reactive negative feedback
06/15/2010US7737786 Broadband reciprocal active balun structure
06/15/2010US7737784 Self configuring output stages of precision amplifiers
06/15/2010US7737783 Differential amplifier
06/15/2010US7737782 Operational amplifier circuit
06/15/2010US7737781 Differential amplifier and input circuit using the same
06/15/2010US7737780 Scheme for improving settling behavior of gain boosted fully differential operational amplifier
06/15/2010US7737776 Power efficient amplifier
06/15/2010US7737733 Current-voltage conversion circuit
06/10/2010WO2010065243A2 Hybrid power control for a power amplifier
06/10/2010WO2010064442A1 Received light amplification circuit and optical disc device
06/10/2010WO2010064412A1 Bias circuit and method for making bias circuit
06/10/2010WO2010063616A1 Operational transconductance amplifier having two amplification stages.
06/10/2010WO2010033727A3 Transmitters for wireless power transmission
06/10/2010US20100142611 Digital communication system and method
06/10/2010US20100141345 Amplifier system with dynamically-adjusted supply voltage
06/10/2010US20100141344 Reference bias generating circuit
06/10/2010US20100141343 Operational transconductance amplifier having two amplification stages
06/10/2010US20100141342 Amplification circuit and method therefor
06/10/2010US20100141341 Receiver Having Multi-Stage Low Noise Amplifier
06/10/2010US20100141340 Method and apparatus for a high bandwidth amplifier with wide band peaking
06/10/2010US20100141338 Broadband power amplifier
06/10/2010US20100141337 Amplifier with programmable off voltage
06/10/2010US20100141168 Class-e amplifier and lighting ballast using the amplifier
06/10/2010US20100140456 Semiconductor device
06/10/2010DE102009056353A1 Programmierbares Kompensationsnetzwerk für Operationsverstärker Programmable compensation network for operational amplifiers
06/10/2010DE102005025677B4 Empfangsverstärker, insbesondere für Fernsehempfänger und Verwendung des Empfangsverstärkers Receiver amplifier, particularly for television receivers and use of the receiving amplifier
06/10/2010CA2743484A1 Hybrid power control for a power amplifier
06/09/2010EP2194684A1 Transmitter-receiver amplifier and method for compensating delay deviation
06/09/2010EP2193603A1 High-swing operational amplifier output stage using adaptive biasing
06/09/2010EP2193601A2 A distributed low noise amplifier
06/09/2010EP1712049B1 Fractional-n sigma-delta modulator comprising an adaptive compensation filter that compensates for the undesired effects of the phase locked loop and methods thereof
06/09/2010CN201504293U Isolator of visitor talkback system host
06/09/2010CN201504173U Digital radio frequency power supply
06/09/2010CN1977459B Transmission apparatus, communication apparatus and mobile radio apparatus
06/09/2010CN1930784B Transmission device and radio communication device
06/09/2010CN101730217A Improved radio frequency power control method and terminal
06/09/2010CN101729031A Drive circuit and drive ic
06/09/2010CN101729030A D class amplifier and control method thereof
06/09/2010CN101729029A Electronic devices with calibrated radio frequency communications circuitry
06/09/2010CN101729028A Amplifier device
06/09/2010CN101729027A High gain amplifier circuit
06/09/2010CN101729025A Sectioned linear transformation method
06/09/2010CN101727120A Linear voltage regulator circuit for rapidly responding to load change without plug-in capacitor
06/09/2010CN101251399B High input impedance differential pre-amplifier circuit of ultrasonic flowmeter
06/09/2010CN101247108B Integrated digital predistortion power amplifier
06/09/2010CN101188407B A digital natural impulse modulation method and device