| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 12/05/2002 | US20020180530 MMIC driver amplifier having zig-zag RF signal flow |
| 12/05/2002 | US20020180529 Differential amplifier |
| 12/05/2002 | US20020180528 Cmos folding amplifier having high resolution and low power consumption |
| 12/05/2002 | US20020180527 Input stage of an operational amplifier |
| 12/05/2002 | US20020180526 Bipolar emitter couple pair transconductor for high speed operational amplifiers |
| 12/05/2002 | US20020180524 D-class power amplifier with electric power regeneration function |
| 12/05/2002 | US20020180522 Transmitter with a sliding compression point |
| 12/05/2002 | US20020180520 Variable gain amplifier |
| 12/05/2002 | US20020180519 Switching amplifier with voltage-multiplying output stage |
| 12/05/2002 | US20020180518 Switching amplifier having digital correction and method therefor |
| 12/05/2002 | US20020180493 Bipolar comparator |
| 12/05/2002 | US20020180490 Current mirror circuit |
| 12/05/2002 | US20020180482 High speed output buffers using voltage followers |
| 12/05/2002 | US20020179917 High-voltage hybrid circuit |
| 12/05/2002 | DE10211891A1 Intgrierte Halbleiterschaltung Intgrierte semiconductor circuit |
| 12/05/2002 | DE10119039A1 Apparatus for transmitting data via electrical mains network, amplifies data signal using switched amplifier and couples into power network |
| 12/04/2002 | EP1263130A2 D-class power amplifier with electric power regeneration function |
| 12/04/2002 | EP1263129A1 DC feedback control circuit |
| 12/04/2002 | EP1262020A2 High sheet mos resistor method and apparatus |
| 12/04/2002 | EP1262018A2 High-efficiency power modulators |
| 12/04/2002 | EP1262017A1 Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier |
| 12/04/2002 | EP0824783B1 Balanced double-folded cascode operational amplifier |
| 12/04/2002 | CN1383607A Amplifier with output transformer |
| 12/04/2002 | CN1383262A Class-A or B amplifier with complementary MOS |
| 12/03/2002 | US6489862 Method for reducing noise generated in a power amplifier |
| 12/03/2002 | US6489848 Linear and multi-sin h transconductance circuits |
| 12/03/2002 | US6489847 Low distoration driving amplifier for integrated filters |
| 12/03/2002 | US6489845 Multiplexing amplifier |
| 12/03/2002 | US6489843 Power amplifier and communication unit |
| 12/03/2002 | US6489842 Multiple traveling wave tube amplifier electronic power conditioner with centralized low voltage and distributed high voltage |
| 12/03/2002 | US6489841 Class D audio amplifier |
| 12/03/2002 | US6489840 Power amplification equipment |
| 12/03/2002 | US6489839 Amplifier with output transformer |
| 12/03/2002 | US6489814 Track and hold amplifier |
| 12/03/2002 | US6489680 Semiconductor device |
| 11/28/2002 | WO2002095937A1 Current-feedback amplifier exhibiting reduced distortion |
| 11/28/2002 | WO2002095936A1 Audio output amplifier |
| 11/28/2002 | WO2002095935A1 Audio output amplifier |
| 11/28/2002 | WO2002095934A1 A compensation method in a class-g amplifier output stage |
| 11/28/2002 | WO2002095933A1 Composite amplifier with optimized linearity and efficiency |
| 11/28/2002 | WO2002058231A3 Power amplifier (pa) with increased dynamics and efficiency |
| 11/28/2002 | US20020177420 Communications signal amplifiers having independent power control and amplitude modulation |
| 11/28/2002 | US20020176197 Method and apparatus for compensation of second order distortion |
| 11/28/2002 | US20020175878 Tunable matching circuit |
| 11/28/2002 | US20020175863 Ferroelectric antenna and method for tuning same |
| 11/28/2002 | US20020175766 Driver circuit apparatus, measuring circuit apparatus and amplifier circuit apparatus therefor |
| 11/28/2002 | US20020175763 Wide-band single-ended to differential converter in CMOS technology |
| 11/28/2002 | US20020175762 Amplifier circuit |
| 11/28/2002 | US20020175761 High-bandwidth low-voltage gain cell and voltage follower having an enhanced transconductance |
| 11/28/2002 | US20020175760 Compensation method in a class-G amplifier output stage |
| 11/28/2002 | US20020175759 Current-feedback amplifier exhibiting reduced distortion |
| 11/28/2002 | US20020175757 Double-cascode two-stage operational amplifier |
| 11/28/2002 | US20020175756 Method and apparatus for an efficient low voltage switchable gm cell |
| 11/28/2002 | US20020175755 Differential current mode gain stage and methods of using the same |
| 11/28/2002 | US20020175753 Stabilized high band width differential emitter follower amplifier |
| 11/28/2002 | US20020175750 Method of detecting load impedance for inductive boost amplifier |
| 11/28/2002 | US20020175749 Differential signal transfer circuit |
| 11/28/2002 | US20020175739 Duty cycle integrator with tracking common mode feedback control |
| 11/28/2002 | US20020175732 Active auto zero circuit for programmable time continuous open loop amplifiers |
| 11/28/2002 | US20020175731 Active auto zero circuit for time continuous open loop amplifiers |
| 11/28/2002 | US20020175716 Ultra high speed clocked limiting preamplifier |
| 11/27/2002 | EP1261083A1 Driver circuit apparatus, measuring circuit apparatus and amplifier circuit apparatus therefor |
| 11/27/2002 | EP1260018A1 Emitter follower with constant collector current biasing means |
| 11/27/2002 | EP1260015A1 Variable transconductance variable gain amplifier utilizing a degenerated differential pair |
| 11/27/2002 | CN2523113Y Digital constant-voltage power amplifier |
| 11/27/2002 | CN1382321A Impedance adapting amplifier device for low frequency with electronic tubes insertible on line of path of low frequency signal |
| 11/27/2002 | CN1382000A 功率控制器 Power Controllers |
| 11/27/2002 | CN1381950A High-frequency electric power amplifier |
| 11/27/2002 | CN1381948A 半导体集成电路 The semiconductor integrated circuit |
| 11/27/2002 | CN1381947A 半导体集成电路 The semiconductor integrated circuit |
| 11/27/2002 | CN1095243C Display driving apapratus having variable driving ability |
| 11/26/2002 | US6486820 Pipeline analog-to-digital converter with common mode following reference generator |
| 11/26/2002 | US6486737 Bipolar rail-to-rail input stage with transconductance correction |
| 11/26/2002 | US6486736 Class AB single-range advanced operational amplifier |
| 11/26/2002 | US6486734 Amplifier apparatus |
| 11/26/2002 | US6486724 FET bias circuit |
| 11/26/2002 | CA2295341C Wideband linear gaasfet ternate cascode amplifier |
| 11/21/2002 | WO2002093979A2 Dynamic allocation of power supply |
| 11/21/2002 | WO2002093973A1 Apparatus for electric to acoustic conversion |
| 11/21/2002 | WO2002093858A1 Multiple bandwidth amplifier control systems for mobile stations and methods therefor |
| 11/21/2002 | WO2002093735A1 Integrated circuit radio frequency amplifier with notch filter |
| 11/21/2002 | WO2001095485A3 Radio frequency device with fast charging of an input capacitance |
| 11/21/2002 | US20020173287 Integrated circuit radio frequency amplifier with notch filter |
| 11/21/2002 | US20020172380 Impedance adapter preamplifier device for electronic tube audio frequencies able to be inserted on line on the path of the low frequency signal |
| 11/21/2002 | US20020172059 Bias control circuit |
| 11/21/2002 | US20020171960 Magnetic recording and reproducing apparatus and semiconductor integrated circuit for use in the same |
| 11/21/2002 | US20020171773 Image sampling circuit with a black reference combined with the video input |
| 11/21/2002 | US20020171493 Variable gain amplifier |
| 11/21/2002 | US20020171491 Non-linear signal processor |
| 11/21/2002 | US20020171490 Amplifier |
| 11/21/2002 | US20020171488 Amplifier |
| 11/21/2002 | US20020171487 Reconfigurable dual-mode multiple stage operational amplifiers |
| 11/21/2002 | US20020171486 High gain, high bandwidth, fully differential amplifier |
| 11/21/2002 | US20020171483 High-frequency amplifier |
| 11/21/2002 | US20020171481 High-frequency amplifier circuit and radio communication apparatus using same |
| 11/21/2002 | US20020171480 Self oscillating power amplifier |
| 11/21/2002 | US20020171478 Operational amplifier arrangement including a quiescent current control circuit |
| 11/21/2002 | US20020171477 High-frequency amplifier, feed-forward amplifier and distortion compensating amplifier |
| 11/21/2002 | US20020171475 Method and systems for power amplifying of signals |
| 11/21/2002 | US20020171474 Offset control of an operational amplifier |