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)
05/2003
05/22/2003US20030095013 Modulation of a digital input signal using a digital signal modulator and signal splitting
05/22/2003US20030095006 Balanced amplifier and filter using the same
05/22/2003US20030095005 Variable gain amplifier and filter circuit
05/22/2003US20030095004 Differential amplifier circuit
05/22/2003US20030095003 Wide common mode differential input amplifier and method
05/22/2003US20030095002 N way phase cancellation power amplifier
05/22/2003US20030095000 Apparatus with ultra high output power class D audio amplifier
05/22/2003US20030094994 Method and device for reducing influence of early effect
05/22/2003US20030094989 Multiplier
05/22/2003US20030094977 Voltage mode differential driver and method
05/22/2003US20030094932 Power supply rejection ratio optimization during test
05/21/2003EP1313213A2 Wide common mode differential input amplifier and method
05/21/2003EP1313212A1 Power supply rejection ratio optimization during test
05/21/2003EP1313211A1 Operational transconductance amplifier with a non-linear current mirror for improved slew rate
05/21/2003EP1313185A2 Temperature dependent constant-current generating circuit
05/21/2003EP1312161A1 Rf signal amplifier unit, rf signal transmission device and rf signal transmitting terminal-antenna
05/21/2003EP1312160A1 Linear pre-amplifier for radio-frequency power amplifier
05/21/2003EP1312158A1 Transmitter including a composit amplifier
05/21/2003EP1232565B1 High efficiency power amplifier
05/21/2003EP1175774B1 Circuit for processing a time-discrete analog signal and image sensor
05/21/2003EP0925643B1 High-efficiency amplifying device
05/21/2003CN1419744A Front end and high frequency receiver having quadrature low noise amplifier
05/21/2003CN1419342A Aplitude method for signal transmitted from samd amplifier and having multiple carrier wave
05/21/2003CN1419337A Paraphase amplifier circuit for electron tube
05/21/2003CN1419290A Semiconductor IC
05/21/2003CN1109401C Bias circuit and method for multistage power amplifier
05/20/2003US6567653 Dual-mode communications transmitter
05/20/2003US6567441 Source follower circuit, laser driving apparatus, semiconductor laser apparatus, current-voltage convertion circuit, and light receiving circuit
05/20/2003US6567200 Photoelectric current amplifying circuit
05/20/2003US6566962 Apparatus and method for tuning an inter-stage matching network of an integrated multistage amplifier
05/20/2003US6566961 Wide-band single-ended to differential converter in CMOS technology
05/20/2003US6566959 Amplifier circuit having a particular biasing arrangement
05/20/2003US6566957 Methods and systems for a MOSFET-bipolar complimentary symmetry driver with local feedback for bias stabilization
05/20/2003US6566956 High frequency power amplifier
05/20/2003US6566955 High bandwidth transresistance amplifier
05/20/2003US6566954 High frequency amplifier bias circuit, high frequency power amplifier, and communication device
05/20/2003US6566953 High-frequency amplifier circuit for UHF television tuner having less distortion
05/20/2003US6566952 Operational amplifier with extended output voltage range
05/20/2003US6566951 Low voltage variable gain amplifier having constant common mode DC output
05/20/2003US6566950 Differential line driver that includes an amplification stage
05/20/2003US6566949 Highly linear high-speed transconductance amplifier for Gm-C filters
05/20/2003US6566946 Noise reduction scheme for operational amplifiers
05/20/2003US6566945 Feedforward amplifier
05/20/2003US6566944 Current modulator with dynamic amplifier impedance compensation
05/20/2003US6566943 Reference-free charge transfer amplifier
05/20/2003US6566942 Multistage amplifier circuit
05/20/2003US6566934 Charge cancellation circuit for switched capacitor applications
05/20/2003US6566926 Hysteretic self-biased amplifier
05/20/2003US6566891 Measurement system and method of determining characteristics associated with a waveform having distortion associated therewith
05/20/2003CA2187486C Differential charge amplifier for a piezoelectric sensor
05/20/2003CA2169041C Transimpedance amplifier circuit
05/20/2003CA2123667C Opto-electronic integrated circuit
05/15/2003WO2003041270A1 A power amplifier module with distortion compensation
05/15/2003WO2003041269A1 Variable frequency switching amplifier and method therefor
05/15/2003WO2002062103A3 Audio sound quality enhancement apparatus
05/15/2003US20030091123 Method of clipping signal comprising a plurality of carriers transmitted by the same non-linear amplifier
05/15/2003US20030090326 Transimpedance amplifier with dual gain outputs
05/15/2003US20030090324 Push-pull amplifier
05/15/2003US20030090323 BiCMOS variable-gain transconductance amplifier
05/15/2003US20030090322 Gain control circuit with well-defined gain states
05/15/2003US20030090321 Bipolar class AB folded cascode operational amplifier for high-speed applications
05/15/2003US20030090318 Digital power amplifier
05/15/2003US20030090300 Differential comparator with offset correction
05/14/2003EP1311097A1 Method for clipping a composite multicarrier modulated signal
05/14/2003EP1310043A1 Differential complementary amplifier
05/14/2003EP1310042A1 Noise and input impedance matched amplifier
05/14/2003EP1310041A2 Digital class-d audio amplifier
05/14/2003EP1310039A1 Transmitter including a composite amplifier
05/14/2003EP1234377B1 Power booster amplifier
05/14/2003EP1214780B1 Modulated radio signal transmitter with self-adapted amplification polarisation
05/14/2003EP1212831B1 Impedance adapting amplifier device for low frequency with electronic tubes insertible on line in the path of the low frequency signal
05/14/2003EP0788680B1 Electronic lamp ballast comprising a bridge circuit and an integrated circuit arrangement provided with a voltage-current converter for controlling the bridge circuit
05/14/2003CN1108658C Device for continuous-time filtering in digital CMOS process
05/13/2003US6563883 Transmitter
05/13/2003US6563395 Power splitter/combiner circuit, high power amplifier and balun circuit
05/13/2003US6563384 High gain amplifier with rail to rail range and frequency compensation
05/13/2003US6563383 Variable gain circuit
05/13/2003US6563382 Linear variable gain amplifiers
05/13/2003US6563381 Circuits and methods for extending the input common mode voltage range of JFET op-amps
05/13/2003US6563380 Dual bridge amplifier
05/13/2003US6563379 High voltage operational amplifier
05/13/2003US6563378 Digital amplifier linearization using analog feedback
05/13/2003US6563377 Class D switching audio amplifier
05/13/2003US6563376 Mute circuit and digital audio amplifier circuit
05/13/2003US6563375 Amplifier having stacked current-driven current drivers
05/13/2003US6563374 Positive and negative current feedback to vary offset in variable-offset amplifier circuits
05/13/2003US6563348 Method and apparatus for double-sampling a signal
05/13/2003US6563270 Thin film transistor circuit and display utilizing the same
05/13/2003CA2243305C Optical module for receiving optical signal from optical fiber
05/08/2003WO2003038995A1 Balanced power amplifier with a bypass structure
05/08/2003WO2003038994A1 Balanced transconductor and electronic device
05/08/2003WO2003038993A2 Method and apparatus for automated current balance adjustment for parallel combined amplification elements
05/08/2003WO2003038420A1 Biosensor circuit and sensor array consisting of a plurality of said biosensor circuits and biosensor array
05/08/2003US20030087626 RF power amplifier circuit
05/08/2003US20030087621 Variable frequency switching amplifier and method therefor
05/08/2003US20030085764 Variable gain amplifier with autobiasing supply regulation
05/08/2003US20030085763 Electronic output stage
05/08/2003US20030085760 Method and system for automated current balance adjustment for parallel combined amplification elements
05/08/2003US20030085758 Nonlinear digital differential amplifier offset calibration
05/08/2003US20030085718 Switching device provided with polarity-inverting means
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