Patents
Sitemap › H03 - Basic electronic circuitry › H03F - Amplifiers › H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
09/2003
09/02/2003US6614306 Bias circuit for class AB high frequency amplifiers
09/02/2003US6614305 Method and circuit for trimming offset and temperature drift for operational amplifiers and voltage references
09/02/2003US6614303 Signal dependent current controlled amplifier and method of performing same
09/02/2003US6614299 Method and system for automated current balance adjustment for parallel combined amplification elements
09/02/2003US6614298 Apparatus and method for controlling adaptive circuits
09/02/2003US6614295 Feedback-type amplifier circuit and driver circuit
09/02/2003US6614280 Voltage buffer for large gate loads with rail-to-rail operation and preferable use in LDO's
08/2003
08/28/2003WO2003013095A3 Method for reducing the power loss occurring during the amplification of ofdm signals, and an associated device
08/28/2003WO2002093979A3 Dynamic allocation of power supply
08/28/2003WO2002045258A3 Method of linearising a signal
08/28/2003WO2002014891A9 Automotive radar systems and techniques
08/28/2003US20030162520 Improved multi-carrier receiver for a radio telecommunication network
08/28/2003US20030162502 Radio frequency (rf) Transceiver
08/28/2003US20030161640 Optical receiving circuit
08/28/2003US20030160658 Power supply processing for power amplifiers
08/28/2003US20030160655 Antenna amplifier
08/28/2003US20030160654 Power amplifier with an adjustable quiescent current
08/28/2003US20030160653 BTL amplifying system
08/28/2003US20030160652 Amplifier device with a selectable active or passive operational mode and ultrasonic apparatus
08/27/2003EP1339248A1 Method and device of gain equalization based on wideband multi-carrier base-station
08/27/2003EP1131885B1 Circuit and method for linearizing amplitude modulation in a power amplifier
08/27/2003CN1438771A Optical receiver ampeifier and optical pick-up device adopting said circuit
08/27/2003CN1438706A Electrostatic releasing protection circuit
08/27/2003CN1119857C MUltiband high-efficiency linear power amplifier and high-efficiency power amplifier
08/27/2003CN1119855C Amplifier with adjustable bias current
08/26/2003US6611174 Self-compensated transimpedance amplifier
08/26/2003US6611173 Miller effect-based circuit for splitting poles
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
08/26/2003CA2193826C Electrical power amplifier for continuous cardiac output monitoring
08/21/2003WO2003069774A2 A-ab transconductor
08/21/2003WO2003069773A2 Deed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier
08/21/2003WO2003034383A3 Drive circuit for adaptive control of precharge current and method therefor
08/21/2003WO2003019770A3 N way cancellation coupler for power amplifier
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
08/21/2003US20030158711 Method for automatically releasing and placing an order
08/21/2003US20030157905 Transmitter and associated method for reducing the adjacent channel power during wireless communications
08/21/2003US20030156658 Method and apparatus for preparing signals to be compared to establish predistortion at the input of an amplifier
08/21/2003US20030156101 Adaptive control boost current method and apparatus
08/21/2003US20030155980 Semiconductor device including semiconductor element of high breakdown voltage
08/21/2003US20030155978 Dynamic bias controller for power amplifier circuits
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
08/21/2003US20030155971 Power servo-loop, an RF signal amplifier circuit, and an RF signal transmitter fitted with such a circuit
08/21/2003US20030155969 Variable-impedance reference circuit and varying method
08/21/2003US20030155966 Low-power, low-noise CMOS amplifier
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
08/20/2003EP1337036A2 Distortion-correcting circuit, integrated circuit, and radio communication device
08/20/2003EP1264396B1 Circuit arrangement for adjusting the operating point of a high-frequency transistor and an amplifier circuit
08/20/2003EP0804789B1 Arrangement comprising a magnetic write head, and write amplifier with capacitive feed-forward compensation
08/20/2003CN1437794A Feed-forward amplifier
08/20/2003CN1437793A Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio
08/20/2003CN1437792A Negative feedback gain control for common electrode transistor
08/20/2003CN1118944C Linear transmitter using precorrection
08/20/2003CN1118813C Input signal amplifier
08/19/2003US6608529 Frequency synthesis apparatus, systems, and methods
08/19/2003US6608523 System and method for producing a pilot signal in a distortion reduction system
08/19/2003US6608504 Sample-and-hold amplifier circuit and pipelined A/D and D/A converters using sample hold amplification circuit
08/19/2003US6607747 Spheronized beadlet containing acid labile group is selected from the group consisting of 2', 3'-dideoxyadenosine, 2', 3' dideoxycytidine, pravstatin, erythromycin, digoxin and pancreatin
08/14/2003WO2002047249A3 A polar loop amplifier arrangement
08/14/2003US20030153287 Method and apparatus for sensing operating temperature in a power amplifier
08/14/2003US20030153270 Distortion-correcting circuit, integrated circuit, and radio communication device
08/14/2003US20030152215 Driver circuit for subscriber terminals
08/14/2003US20030152015 Photoreceiver amplifier circuit and optical pickup employing the same
08/14/2003US20030151865 Electrostatic discharge protection circuit
08/14/2003US20030151462 Fast recovery time precision amplifier
08/14/2003US20030151457 Feed forward RF power amplifier with high efficiency main amplifier and highly linear error amplifier
08/13/2003EP1335489A1 Nonlinear distortion compensation power amplifier
08/13/2003EP0948838B1 Combined linear power amplifying device and method
08/13/2003EP0929935A4 Coplanar waveguide amplifier
08/13/2003CN1436398A 功率放大器模块 Power Amplifier Module
08/13/2003CN1436397A Method and apparatus for optimum biasing of cascaded MOSFET radio-frequency devices
08/13/2003CN1435945A Power amplifier clipping circuit for minimized output of distortion
08/13/2003CN1118148C Non-linearity-caused distortion compensating system
08/13/2003CN1118132C Method for adaptively controlling amplifier linearization devices
08/13/2003CN1118131C Feedforward amplifier network with frequancy swept pilot tone for reducing power amplifier produced distortion
08/12/2003US6606489 Differential to single-ended converter with large output swing
08/12/2003US6606483 Dual open and closed loop linear transmitter
08/12/2003US6606212 Wideband readout of magneto-resistive heads for data storage
08/12/2003US6605999 High-frequency power amplifier, wireless communication apparatus and wireless communication system
08/12/2003US6605998 Linear transconductance amplifier
08/12/2003US6605994 Stabilized high band width differential emitter follower amplifier
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
08/12/2003CA2284956C Cmos circuit for generating a current reference
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
08/07/2003WO2003065569A2 Output circuit for a semiconductor amplifier element
08/07/2003WO2003065498A1 High-frequency circuit module and radio communication apparatus
08/07/2003US20030148792 Wideband error amplifier
08/07/2003US20030146792 Two-stage operational amplifier
08/07/2003US20030146791 Variable output power supply
08/07/2003US20030146790 Multi-mode amplifier bias circuit
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