Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008)
12/2005
12/28/2005CN1713522A Distributed amplifier
12/28/2005CN1713521A Differential amplifier circuit and method for controlling base bais voltage of differential amplifier circuit
12/28/2005CN1713520A Differential amplifier circuit and method for controlling differential amplifier circuit
12/28/2005CN1713519A Wireless communication system and semiconductor integrated circuit
12/28/2005CN1713518A Electric component for high frequency power amplifier
12/28/2005CN1713516A Low voltage differential amplifier circuit for wide voltage operation range and its operation method
12/28/2005CN1234206C Amplifier common-mode feedback system used for switch capacitor structure
12/27/2005US6980780 Power controller
12/27/2005US6980058 Amplifier circuitry
12/27/2005US6980057 Power amplifier, power distributor, and power combiner
12/27/2005US6980055 CMOS differential buffer circuit
12/27/2005US6980054 Trans-conductance amplification circuit, trans-conductance filter circuit, and filtering method
12/27/2005US6980053 Adaptable voltage control for a variable gain amplifier
12/27/2005US6980052 Low-voltage pre-distortion circuit for linear-in-dB variable-gain cells
12/27/2005US6980050 Differential amplifier and comparator using the same
12/22/2005WO2005121820A1 Method and apparatus to reduce jitter by adjusting vertical offset
12/22/2005WO2005098880A3 Distributed active transformer power control techniques
12/22/2005WO2005011106A3 A low-power wide dynamic range envelope detector system and method
12/22/2005US20050282508 Method and apparatus for controlling a TX power amplifier
12/22/2005US20050282507 Method and apparatus for controlling a TX power amplifier
12/22/2005US20050281362 Integrated circuit implementation for power and area efficient adaptive equalization
12/22/2005US20050281353 Method and apparatus for controlling a TX power amplifier
12/22/2005US20050281103 Semiconductor integrated circuit and operational amplifier
12/22/2005US20050280486 Transmission line and semiconductor integrated circuit device
12/22/2005US20050280472 Method and apparatus to provide wideband low noise amplification
12/22/2005US20050280471 Electric component for high frequency power amplifier
12/22/2005US20050280469 Transconductance amplifier
12/22/2005US20050280468 Accurate quiescent current control scheme in floating controlled class AB amplifier
12/22/2005US20050280467 Monolithic CMOS differential LNA with enhanced linearity
12/22/2005US20050280466 Method and apparatus for an enhanced efficiency power amplifier
12/22/2005US20050280464 Constant voltage outputting circuit
12/22/2005DE19962811B4 Gegentaktverstärkerschaltung Push-pull amplifier circuit
12/22/2005DE10312435B4 Mit einer Antenne gekoppelte Verstärkungseinrichtung zum Senden und Empfangen Amplifying means coupled to an antenna for transmitting and receiving
12/22/2005DE102004025918A1 Verstärkeranordnung und Verfahren zum Betreiben einer Verstärkeranordung Amplifier arrangement and method for operating a Verstärkeranordung
12/21/2005EP1606884A2 Clip detection in pwm amplifier
12/21/2005EP1606875A1 Systems and methods for protection of audio amplifier circuits
12/21/2005EP1537653B1 Linear amplification device with a non-linear amplification element for a mobile radio device
12/21/2005EP1054508B1 Microwave amplifier
12/21/2005CN1711735A Electromagnetic wave transmitter systems, methods and articles of manufacture
12/21/2005CN1711679A Improved RF transistor amplifier linearity using suppressed third order transconductance
12/21/2005CN1711678A Power amplifier
12/21/2005CN1233138C Transmitting circuit device
12/21/2005CN1233090C Programmable radio frequency front compensation linear circuit and method thereof
12/21/2005CN1233088C System and method for generating amplified signal or version thereof
12/20/2005US6978008 Zero crossing detection circuit
12/20/2005US6977562 Self-tuned matching network for high efficient power amplifiers
12/20/2005US6977555 Tuner circuit
12/20/2005US6977554 Variable gain amplifier for high frequency band using microstrip hybrid
12/20/2005US6977552 Impedance matching low noise amplifier having a bypass switch
12/20/2005US6977549 Differential circuit, amplifier circuit, driver circuit and display device using those circuits
12/20/2005US6977547 Minimizing changes in the amplification factor of an amplification circuit during operation
12/20/2005US6977546 High efficiency power amplifier systems and methods
12/20/2005US6977543 Biasing technique using thin and thick oxide transistors
12/20/2005US6977541 Variable time constant circuit and filter circuit using the same
12/20/2005US6977535 Differential current output unit
12/20/2005US6977532 Dual differential comparator circuit with full range of input swing
12/20/2005US6977526 Fully differential input buffer with wide signal swing range
12/15/2005WO2005119911A1 Power supply voltage monitoring circuit and electronic device incorporating the same
12/15/2005WO2005119907A2 General-purpose wideband amplifier
12/15/2005WO2005119906A2 Extended bandwidth amplifier and oscillator using positive current feedback through inductive load
12/15/2005WO2005119905A2 Linearity enhanced amplifier
12/15/2005WO2005119904A1 Power amplifier and pulse-width modulated amplifier
12/15/2005WO2005119903A1 Quadrature offset power amplifier
12/15/2005WO2005119773A1 Module integration integrated circuits
12/15/2005WO2005079240A3 Switching power amplifier using a frequency translating delta sigma modulator
12/15/2005US20050277826 Apparatus and method for reducing interference
12/15/2005US20050276145 Differential input buffer for receiving signals relevant to low power
12/15/2005US20050276136 Method and apparatus for amplifying a regulated differential signal to a higher voltage
12/15/2005US20050275980 RF generator with commutation inductor
12/15/2005US20050275477 Methods and apparatus for calibrating gm-Z
12/15/2005US20050275466 Multi-gigabit/s transimpedance amplifier for optical networks
12/15/2005US20050275465 Semiconductor amplifier
12/15/2005US20050275464 Transistor amplifying stage
12/15/2005US20050275463 Low voltage differential amplifier circuit and bias control technique enabling accommodation of an increased range of input levels
12/15/2005US20050275462 Low voltage differential amplifier circuit and a sampled low power bias control technique enabling accommodation of an increased range of input levels
12/15/2005US20050275461 Low voltage differential amplifier circuit for wide voltage range operation
12/15/2005US20050275460 Current-mode instrumentation amplifier
12/15/2005US20050275459 Voltage comparator circuit
12/15/2005US20050275458 Programmable passive inductor
12/15/2005US20050275457 Driver apparatus and method of operation thereof
12/15/2005US20050275456 RF generator with reduced size and weight
12/15/2005US20050275455 Method and apparatus for linear low-frequency feedback in monolithic low-noise charge amplifiers
12/15/2005US20050275454 Cross-differential amplifier
12/15/2005US20050275453 Current-mode instrumentation amplifier gain error correction circuitry
12/15/2005US20050275452 Precision chopper-stabilized current mirror
12/15/2005US20050275446 Automatic integration reset offset subtraction circuit
12/15/2005US20050275444 HIgh voltage level converter using low voltage devices
12/15/2005US20050275404 High fidelity, high power switched amplifier
12/15/2005DE102005022579A1 Überstromschutzschaltung, zugehöriger Schaltverstärker und Überstromschutzverfahren The overcurrent protection circuit, associated switching amplifier and overcurrent protection method
12/15/2005DE102004024805A1 Verfahren und Regelanordnung zur Regelung der Ausgangsleistung einer HF-Verstärkeranordnung Process and control device for controlling the output power of an RF amplifier arrangement
12/14/2005EP1605586A1 Semiconductor amplifier
12/14/2005EP1604455A1 Three state class d amplifier
12/14/2005EP1488549B1 Optical fiber receiver having an increased bandwidth
12/14/2005CN1708983A Read-out circuit for infrared detectors
12/14/2005CN1708897A Differential circuit and receiver with same
12/14/2005CN1707950A Radio frequency switching circuit and semiconductor device using the same
12/14/2005CN1707942A Voltage comparator circuit
12/14/2005CN1232037C Circuit capable of generating control signal in linear current and method thereof
12/13/2005US6975843 Method and an arrangement relating to telecommunications systems
12/13/2005US6975734 Audio apparatus of negative driving with adaptive gain control
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