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)
08/2003
08/27/2003CN1119859C Mixing amplifier
08/27/2003CN1119857C MUltiband high-efficiency linear power amplifier and high-efficiency power amplifier
08/26/2003US6611680 Radio architecture
08/26/2003US6611174 Self-compensated transimpedance amplifier
08/26/2003US6611172 Thermally distributed darlington amplifier
08/26/2003US6611171 Linear transconductance amplifier
08/26/2003US6611169 Power supply regulation and protection circuit for audio power amplifier
08/26/2003US6611168 Differential parametric amplifier with physically-coupled electrically-isolated micromachined structures
08/26/2003US6611163 Switched capacitor scheme for offset compensated comparators
08/26/2003US6611157 Differential signal output circuit
08/26/2003US6611155 Internally and externally biased dual mode 1394 compliant driver
08/26/2003CA2193826C Electrical power amplifier for continuous cardiac output monitoring
08/21/2003WO2003069774A2 A-ab transconductor
08/21/2003WO2003069719A1 Switchable combiner and integrated combining apparatus for using it
08/21/2003WO2003034383A3 Drive circuit for adaptive control of precharge current and method therefor
08/21/2003WO2003017468A3 A system and method for minimizing dissipation in rf power amplifiers
08/21/2003WO2002015388A3 Amplifier circuits and methods to provide smooth transition of amplifier outputs during powering sequences
08/21/2003US20030156101 Adaptive control boost current method and apparatus
08/21/2003US20030156003 Printed circuit board transformer
08/21/2003US20030155980 Semiconductor device including semiconductor element of high breakdown voltage
08/21/2003US20030155979 Device comprising a symmetrical amplifier
08/21/2003US20030155977 Gain block with stable internal bias from low-voltage power supply
08/21/2003US20030155976 Cmos transceiver having an integrated power amplifier
08/21/2003US20030155975 Method and circuit for trimming offset and temperature drift
08/21/2003US20030155974 Method and circuit for trimming offset and temperature drift for operational amplifiers and voltage references
08/21/2003US20030155973 Variable gain amplifier
08/21/2003US20030155972 Switched gain amplifier circuit
08/21/2003US20030155969 Variable-impedance reference circuit and varying method
08/21/2003US20030155967 Switched-capacitor amplifier and analog interface circuit for charge coupled element adopting the same
08/21/2003US20030155966 Low-power, low-noise CMOS amplifier
08/21/2003DE10164382C1 Integrierte Schaltungsanordnung mit einem Transkonduktanzverstärker Integrated circuit arrangement having a transconductance amplifier
08/20/2003EP1337049A2 Radio base station
08/20/2003EP1337038A2 Power control loop, radiofrequency amplifying circuit, and transmitter for radiofrequency signals having such a circuit
08/20/2003EP1337037A1 Method and circuit for trimming offset and temperature drift for operational amplifiers and voltage references
08/20/2003EP1336911A1 Circuit arrangement for controlling a constant current through a load
08/20/2003EP1336136A1 Method for adjusting a bgr circuit
08/20/2003EP1264396B1 Circuit arrangement for adjusting the operating point of a high-frequency transistor and an amplifier circuit
08/20/2003EP1236273B1 High voltage hybrid circuit
08/20/2003EP0804789B1 Arrangement comprising a magnetic write head, and write amplifier with capacitive feed-forward compensation
08/20/2003CN1437319A Amplifier of display device, drive circuit, mobile phone and portable electronic apparatus
08/20/2003CN1437318A Transmission line tuning switch power amplifier
08/19/2003US6608710 Automatic gain control circuit and optical receiver
08/19/2003US6608582 A/D conversion using a variable offset comparator
08/19/2003US6608526 CMOS assisted output stage
08/19/2003US6608525 Operational transconductance amplifier and filter circuit
08/19/2003US6608504 Sample-and-hold amplifier circuit and pipelined A/D and D/A converters using sample hold amplification circuit
08/19/2003US6608492 AC impedance bridge
08/14/2003WO2003067755A1 Semiconductor circuit
08/14/2003WO2003067754A1 Output circuit amd mixer circuit
08/14/2003WO2003067753A1 Digital pwm input d class amplifier by pwm negative feedback
08/14/2003WO2003067752A2 Adc having chopper offset cancellation
08/14/2003WO2002059928A3 Active radio frequency cavity amplifier
08/14/2003WO2002058104A9 Amplified cmos transducer for single photon read-out of photodetectors
08/14/2003WO2002003542A3 System and method for noise and spurious suppression in power amplifier systems
08/14/2003US20030153269 Integrated circuit transponder having a plurality of high-gain radio frequency signal inputs
08/14/2003US20030152215 Driver circuit for subscriber terminals
08/14/2003US20030152015 Photoreceiver amplifier circuit and optical pickup employing the same
08/14/2003US20030151581 Driving voltage controller
08/14/2003US20030151462 Fast recovery time precision amplifier
08/14/2003US20030151460 Cmos dual-stage differential receiver-amplifier
08/14/2003US20030151459 High frequency switch-mode power amplifier
08/14/2003US20030151458 Transimpedance amplifier and circuit including the same
08/14/2003US20030151456 Multi-reference high accuracy switching amplifier expansion
08/14/2003US20030151443 DC offset cancel circuit
08/14/2003US20030151431 Apparatus for effecting high speed switching of a communication signal
08/14/2003US20030151396 Current driver and method of precisely controlling output current
08/14/2003DE10236532C1 Circuit controlling power transistors, includes two current-regulated supplies and gate voltage limiter
08/13/2003EP1335489A1 Nonlinear distortion compensation power amplifier
08/13/2003EP1335185A1 Differential charge amplifier with built-in testing for rotation rate sensor
08/13/2003EP1145426B1 Data pulse receiver
08/13/2003EP0948838B1 Combined linear power amplifying device and method
08/13/2003EP0929935A4 Coplanar waveguide amplifier
08/13/2003CN1436400A High-gain, very wide common mode range, self biased operational amplifier
08/13/2003CN1436399A Boosted high-gain, very wide common mode range, self-biased operational amplifier
08/13/2003CN1436398A 功率放大器模块 Power Amplifier Module
08/13/2003CN1436351A Multiple output current mirror with improved accuracy
08/12/2003US6606489 Differential to single-ended converter with large output swing
08/12/2003US6606212 Wideband readout of magneto-resistive heads for data storage
08/12/2003US6606049 Analog to digital converters based on transconveyance amplifiers
08/12/2003US6606044 Method and apparatus for generating a pulse width modulated signal
08/12/2003US6606002 Common device node balun grounded balanced amplifier
08/12/2003US6606001 High-speed current-mirror circuitry and method of operating the same
08/12/2003US6606000 Radio-frequency amplifier, radio-frequency module and communication device
08/12/2003US6605999 High-frequency power amplifier, wireless communication apparatus and wireless communication system
08/12/2003US6605998 Linear transconductance amplifier
08/12/2003US6605997 CMOS dual-stage differential receiver-amplifer
08/12/2003US6605996 Automatically gain controllable linear differential amplifier using variable degeneration resistor
08/12/2003US6605995 Differential amplifier circuit
08/12/2003US6605994 Stabilized high band width differential emitter follower amplifier
08/12/2003US6605993 Operational amplifier circuit
08/12/2003US6605992 Offset error in linear feedback loops corrected by loop replication
08/12/2003US6605991 Circuitry for creating a spectral null in a differential output switching amplifier and method therefor
08/12/2003US6605990 Balanced transformer-less amplifier and an offset detection and correction system therefore
08/11/2003CA2371522A1 Low emi class d amplifier
08/07/2003WO2003065599A1 Power amplification apparatus of portable terminal
08/07/2003WO2003065573A1 N-way rf power amplifier with increased backoff power and power added efficiency
08/07/2003WO2003065572A1 Distributed level-shifting network for cascading broadband amplifiers
08/07/2003WO2003065571A1 Output stage with stable quiescent current
08/07/2003WO2003065570A2 Modulator- amplifier
08/07/2003WO2003065569A2 Output circuit for a semiconductor amplifier element
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