| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 08/08/2002 | US20020105379 Feedforward amplifier |
| 08/08/2002 | US20020105377 Digital power amplifier |
| 08/08/2002 | US20020105363 Current comparator |
| 08/08/2002 | US20020105360 Single-ended differential circuit using complementary devices |
| 08/08/2002 | CA2427141A1 Audio sound quality enhancement apparatus |
| 08/07/2002 | EP1229641A1 Self oscillating power amplifier |
| 08/07/2002 | EP1229639A2 Elimination of noise during power supply switching in an audio amplifier circuit |
| 08/06/2002 | US6429747 System and method for converting from single-ended to differential signals |
| 08/06/2002 | US6429744 Method for bias rail buffering |
| 08/06/2002 | US6429743 Signal conversion circuit for stable differential amplification and semiconductor device provided with the same as input buffer |
| 08/06/2002 | US6429742 Gain-controlled tuned differential adder |
| 08/06/2002 | US6429739 Amplifier with feedback power control loop offset compensation |
| 08/06/2002 | US6429737 Method and apparatus for multi-channel digital amplification |
| 08/06/2002 | US6429735 High speed output buffer |
| 08/06/2002 | US6429734 Differential active loop filter for phase locked loop circuits |
| 08/06/2002 | US6429702 CMOS buffer for driving a large capacitive load |
| 08/06/2002 | US6429700 Driver circuit with output common mode voltage control |
| 08/06/2002 | US6429697 Multi-stage, low-offset, fast-recovery, comparator system and method |
| 08/06/2002 | US6429695 Differential comparison circuit |
| 08/06/2002 | US6429690 Programmable linear transconductor circuit |
| 08/06/2002 | US6429412 Combining electronically scanned input circuits for reading photodiodes |
| 08/01/2002 | WO2002060146A1 Method of implementing modulation and modulator |
| 08/01/2002 | WO2002060077A1 Front end and high frequency receiver having quadrature low noise amplifier |
| 08/01/2002 | WO2002060052A2 Precision automatic gain control circuit |
| 08/01/2002 | WO2002060051A2 High linearity circuits and methods regarding same |
| 08/01/2002 | WO2002060050A2 Power amplifier system having frequency and amplifier failure compensation |
| 08/01/2002 | WO2002059928A2 Active radio frequency cavity amplifier |
| 08/01/2002 | WO2002033822A3 Circuit arrangement |
| 08/01/2002 | US20020102952 Portable radio transceiver having shared power source for audio and RF amplifiers |
| 08/01/2002 | US20020102003 Power supply noise immunity for audio amplifer |
| 08/01/2002 | US20020101287 Current mirror compensation system for power amplifiers |
| 08/01/2002 | US20020101286 Extremely linear, high speed, class AB rail to rail bipolar amplifier output stage with high output drive |
| 08/01/2002 | US20020101285 Stable AGC transimpedance amplifier with expanded dynamic range |
| 08/01/2002 | US20020101284 Class E/F switching power amplifiers |
| 08/01/2002 | US20020101283 RF amplifier |
| 08/01/2002 | US20020101282 Elimination of noise during power supply switching in an audio amplifier circuit |
| 08/01/2002 | US20020101270 Current pulse receiving circuit |
| 08/01/2002 | US20020101268 Operational amplifier output stage |
| 08/01/2002 | DE10157006A1 Hochgeschwindigkeitssignalfenstererfassung High-speed signal acquisition window |
| 07/31/2002 | EP1227580A2 High frequency differential amplifier |
| 07/31/2002 | EP1227579A2 Method and apparatus for providing digital error correction for a class D power stage |
| 07/31/2002 | EP1227578A2 RF amplifier |
| 07/31/2002 | EP1227576A2 Mosfet well biasing scheme that mitigates body effect |
| 07/31/2002 | CN1361938A Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform |
| 07/31/2002 | CN1361589A Electrical apparatus of shielding plate and emitting device for filtering electric signal at two two side of shielding plate |
| 07/30/2002 | US6427067 Detector driven bias circuit for power transistors |
| 07/30/2002 | US6427015 Power supply for microphone |
| 07/30/2002 | US6426744 Display driving apparatus having variable driving ability |
| 07/30/2002 | US6426678 High power amplifier system having low power consumption and high dynamic range |
| 07/30/2002 | US6426676 Compact differential transconductance amplifier and a method of operation thereof |
| 07/30/2002 | US6426674 Circuit and method for compensating an offset voltage in an operational amplifier |
| 07/30/2002 | US6426672 Means of selecting low noise performance or low power dissipation in the analog front end of a custom integrated circuit |
| 07/30/2002 | CA2298317C Microwave power amplifier |
| 07/25/2002 | WO2002058231A2 Power amplifier (pa) with increased dynamics and efficiency |
| 07/25/2002 | WO2002058230A1 Intelligent switching mode power amplifying apparatus |
| 07/25/2002 | WO2002058229A1 Digital power amplifier |
| 07/25/2002 | WO2002058227A2 Common mode output current control circuit and method |
| 07/25/2002 | WO2002058104A1 Amplified cmos transducer for single photon read-out of photodetectors |
| 07/25/2002 | WO2002033819A3 Amplifier having stacked current-driven current drivers |
| 07/25/2002 | WO2001039366B1 Circuit that operates in a manner substantially complementary to an amplifying device included therein and apparatus incorporating same |
| 07/25/2002 | US20020098820 Front end and high frequency receiver having quadrature low noise amplifier |
| 07/25/2002 | US20020098812 Amplifier phase change compensation |
| 07/25/2002 | US20020097606 Semiconductor circuit |
| 07/25/2002 | US20020097097 High-frequency power amplifier |
| 07/25/2002 | US20020097096 Power amplifier (PA) with increased dynamics and efficiency |
| 07/25/2002 | US20020097092 Circuit topology for better supply immunity in a cascaded gm/gm amplifier |
| 07/25/2002 | US20020097091 Class D audio amplifier |
| 07/25/2002 | US20020097090 Method and apparatus for error correction of amplifier |
| 07/25/2002 | US20020097088 Power splitter/combiner circuit, high power amplifier and balun circuit |
| 07/25/2002 | US20020097086 Dual bridge amplifier |
| 07/25/2002 | US20020097085 High efficiency power amplifier systems and methods |
| 07/25/2002 | US20020097081 Method and apparatus for reducing DC reducing offset |
| 07/25/2002 | DE10102622A1 Circuit for increasing the stability of feedback differential amplifiers in control circuits by use of a compensation circuit for compensation of frequency response and phase shift |
| 07/25/2002 | DE10061589C1 Schaltungsanordnung mit Integriertem Verstärker Circuitry with Integrated Amplifier |
| 07/24/2002 | EP1225786A1 Method and apparatus for implementing a class D driver and speaker system |
| 07/24/2002 | EP1225692A2 RF power amplifier |
| 07/24/2002 | EP1225691A1 Improved class AB, high speed, input stage with base current compensation for fast settling time |
| 07/24/2002 | EP1224732A1 Compensation circuit and method for a power transistor |
| 07/24/2002 | EP1116330B1 Differential input circuit for digital signal processing system |
| 07/24/2002 | EP1078456B1 High frequency receiver range switching circuit |
| 07/24/2002 | EP1072151B1 Low-noise active pixel sensor for imaging arrays with global reset |
| 07/24/2002 | CN1360753A Power amplifier driver system for wireless handset |
| 07/24/2002 | CN1088291C Servo-amplifier for controlling high-ohmic low-voltage source |
| 07/24/2002 | CN1088288C 运算放大器 Operational Amplifier |
| 07/24/2002 | CA2368313A1 Amplifier |
| 07/23/2002 | US6424585 Semiconductor memory device with a voltage down converter stably generating an internal down-converted voltage |
| 07/23/2002 | US6424227 Monolithic balanced RF power amplifier |
| 07/23/2002 | US6424226 Two-port with a frequency-dependent network |
| 07/23/2002 | US6424224 Auxiliary circuitry for monolithic microwave integrated circuit |
| 07/23/2002 | US6424222 Variable gain low noise amplifier for a wireless terminal |
| 07/23/2002 | US6424220 Single-ended push-pull amplifier circuit |
| 07/23/2002 | US6424219 Operational amplifier |
| 07/23/2002 | US6424218 Programmable differential active voltage divider circuit |
| 07/23/2002 | US6424216 Power amplifier system having amplifier failure compensation |
| 07/23/2002 | US6424213 Loss reduction using multiple amplifiers identically divided |
| 07/23/2002 | US6424212 Power amplifiers |
| 07/23/2002 | US6424211 Digital trimming of OP AMP offset voltage and quiescent current using non-volatile memory |
| 07/23/2002 | US6424210 Isolator circuit |
| 07/23/2002 | US6424204 Current mirror circuit |
| 07/23/2002 | US6424183 Current comparator |