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)
09/1995
09/06/1995EP0670630A1 Amplifier system
09/06/1995EP0309580B1 Braodband, high speed video amplifier
09/06/1995CN1029717C Power amplifier combining network
09/05/1995US5448203 Negative-feedback amplifier and feedback controlling method thereof
08/1995
08/31/1995DE4405068A1 Temperature dependent voltage circuit for e.g. LCD element
08/30/1995EP0669710A2 Variable gain amplifying circuit
08/30/1995EP0669709A1 Output stage especially for integrated amplifiers with externally connected output power devices
08/29/1995US5446405 Amplifier circuit with offset cancel circuit
08/29/1995US5446380 Monolithic integrated voltage regulator
08/24/1995WO1995022852A2 Multistage amplifier with hybrid nested miller compensation
08/23/1995EP0667994A1 Method and arrangement for controlling the operation of a high-frequency power amplifier
08/22/1995US5444419 Power amplifier having a temperature compensation circuit
08/22/1995US5444418 Method and apparatus for feedforward power amplifying
08/22/1995US5444417 Self-configurable, dual bridge, power amplifier
08/22/1995US5444413 Operational amplifier circuit with variable bias driven feedback voltage controller
08/22/1995CA2097057C Dynamically biased amplifier
08/22/1995CA2035455C Linear transmitter
08/17/1995WO1995022198A1 Low noise wide band amplifier
08/16/1995EP0667675A1 Bias control device for an amplifier
08/16/1995EP0667674A1 Polarisation circuit for push-pull output stage
08/16/1995EP0667673A1 Constant-current circuit using field-effect transistor
08/16/1995CN1106965A Low voltage RF amplifier and mixer with single bias block and method
08/15/1995US5442323 Broad-band power amplifier
08/15/1995US5442322 Power amplifier bias control circuit and method
08/15/1995US5442319 Active biasing control for class-AB CMOS operational amplifiers
08/15/1995US5442318 Gain enhancement technique for operational amplifiers
08/15/1995US5442317 Switching regulator and amplifier system
08/15/1995US5442316 Temperature compensated and supply independent clipping distortion indicator
08/15/1995US5442311 System and method for controlling a gain circuit
08/15/1995US5442309 Low distortion output stage
08/15/1995CA1336725C Circuit for removing unwanted slope transitions from an incoming signal
08/12/1995CA2141981A1 Amplifier bias control device
08/09/1995EP0665996A1 Radio transmitter with power amplifier linearizer
08/09/1995CN1106591A High efficiency amplifier with reduced switching distortion
08/08/1995US5440305 Method and apparatus for calibration of a monolithic voltage reference
08/08/1995US5440271 Integrated circuit amplifier arrangements
08/08/1995US5440261 Electronic device with low current consumption
08/03/1995WO1995020783A1 Integrated circuit
08/02/1995EP0665652A1 Injection-locked oscillator
08/02/1995EP0665641A2 Power amplifier and radio transmitter
08/02/1995EP0665485A1 Current source
08/01/1995US5438686 Amplitude-modulated broadcast transmitter for various types of modulation, in particular DSB, SSB and ISB
08/01/1995US5438684 Radio frequency signal power amplifier combining network
08/01/1995US5438298 Amplifier having overshoot preventing circuit
07/1995
07/26/1995EP0664608A1 Class AB push-pull drive circuit, drive method therefor and class AB electronic circuit using the same
07/26/1995EP0664607A2 High frequency power amplifier with high efficiency and low distortion
07/26/1995EP0664606A1 Method of high frequency current amplification using mosfet devices
07/26/1995CN1105805A Linear amplifier control
07/25/1995US5436595 Low voltage bipolar amplifier
07/25/1995US5436588 Click/pop free bias circuit
07/20/1995WO1995019574A1 Antenna amplifier for receiving frequencies
07/19/1995EP0663720A2 Solid state tube compression circuit
07/18/1995US5434540 High efficiency power amplifier
07/18/1995US5434536 Semiconductor emulation of vacuum tubes
07/18/1995US5434535 RC filter for low and very low frequency applications
07/18/1995US5434533 Reference voltage generating circuit temperature-compensated without addition of manufacturing step and semiconductor device using the same
07/13/1995WO1995019066A1 Waste energy control management for power amplifier
07/13/1995DE4400435A1 Supply voltage increasing circuitry for audio amplifier output stage
07/13/1995CA2157183A1 Waste energy control management for power amplifier
07/12/1995EP0662752A2 Multi-stage solid state amplifier that emulates tube distortion
07/11/1995US5432479 D.C. current compensation circuit for a nonlinear amplifier
07/11/1995US5432477 Wide frequency range amplifier apparatus
07/11/1995US5432473 Dual mode amplifier with bias control
07/11/1995US5432433 Current source having current mirror arrangement with plurality of output portions
07/05/1995EP0661802A1 Operational amplifier protection circuit using, either in working conditions or at start-up, identical circuit elements for detecting permanent output abnormal conditions
07/04/1995US5430413 Semiconductor device
07/04/1995US5430412 Amplifier with lossless feedback
07/04/1995US5430410 Amplifier bias control system
07/04/1995US5430409 Amplifier clipping distortion indicator with adjustable supply dependence
07/04/1995US5430395 Temperature compensated constant-voltage circuit and temperature compensated constant-current circuit
07/04/1995US5430337 Transconductor stage
06/1995
06/29/1995DE3590480C2 High-frequency amplifier for TV or satellite receivers
06/28/1995EP0660509A1 Amplifier with offset correction
06/28/1995EP0660508A1 High efficiency amplifier with reduced switching distortion
06/27/1995US5428314 Odd/even order distortion generator and distortion cancellation circuit
06/22/1995WO1995017047A1 Radio transceiver comprising an arrangement for compensating for a dc component
06/22/1995WO1995017041A1 Cross-conduction prevention circuit for power amplifier output stage
06/22/1995WO1995017040A1 Click/pop free bias circuit
06/22/1995WO1995017012A1 Refractory metal contact for a power device
06/22/1995DE4445808A1 CMOS differential amplifier circuit with min. current-source voltage
06/21/1995EP0658976A1 Low distortion output stage
06/21/1995EP0658975A1 Baseband predistortion system for the adaptive linearization of power amplifiers
06/21/1995EP0658835A1 Low supply voltage, band-gap voltage reference
06/21/1995EP0572377B1 Darlington transistor circuit
06/21/1995EP0362219B1 Asymmetrical dual input amplifier
06/21/1995CN2201757Y Separating amplifier
06/20/1995US5426641 Adaptive class AB amplifier for TDMA wireless communications systems
06/20/1995US5426395 Method and apparatus for protecting power amplifiers from excessive operating power levels
06/20/1995US5426394 Sound intermediate frequency amplifier for a broadcast receiver
06/20/1995CA2072251C Feed forward distortion minimization circuit
06/20/1995CA2027812C Linear amplifier with automatic adjustment of feed forward loop gain and phase
06/20/1995CA2009315C Amplifying circuit
06/20/1995CA2006683C High efficiency uhf linear power amplifier
06/15/1995CA2137994A1 Baseband predistortion system for the adaptive linearization of power amplifiers
06/14/1995EP0657863A2 A signal amplifier circuit and an image display device adopting the signal amplifier circuit
06/13/1995US5424686 Negative-resistance-compensated microwave buffer
06/13/1995US5424685 High-level modulator with bipolar modulation reference
06/13/1995US5424684 Power amplifier circuit for audio signal and audio device using the same
06/13/1995US5424683 Differential amplification circuit wherein a DC level at an output terminal is automatically adjusted and a power amplifier wherein a BTL drive circuit is driven by a half wave
06/13/1995US5424681 Wide range operational amplifier
1 ... 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 ... 303