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)
05/2003
05/07/2003EP1309088A1 Switching device equipped with polarity inversion means
05/07/2003EP1308026A2 Driver circuit for subscriber terminals
05/07/2003EP1307962A2 Method and circuit for a dual supply amplifier
05/07/2003EP1307961A1 Broad-band driver circuit
05/07/2003CN2549651Y Class A and B linear power amplifiers with large dynamic ranges
05/07/2003CN1416616A High-frequency semiconductor device
05/07/2003CN1416615A Circuit arrangement for adjusting operating point of high-frequency transistor and amplifier circuit
05/07/2003CN1108084C Constant power driving method for loudspeaker
05/07/2003CN1108025C Device for controlling power envelope
05/07/2003CN1107892C Voltage to current conversion circuit for converting voltage to multiple current outputs
05/06/2003US6559995 Optical transmission method and optical transmitter with temperature compensation function
05/06/2003US6559724 Techniques for enhancing gain in a quasi-optic grid array
05/06/2003US6559723 Single ended input, differential output amplifier
05/06/2003US6559721 Circuit configuration with an integrated amplifier
05/06/2003US6559720 GM-controlled current-isolated indirect-feedback instrumentation amplifier
05/06/2003US6559719 Amplifier
05/06/2003US6559718 Semiconductor integrated circuit device
05/06/2003US6559716 Switchable operational amplifier for switched op-amp applications
05/06/2003US6559705 Circuit arrangement
05/06/2003US6559688 Voltage comparing circuit
05/02/2003EP1306971A1 Base bias circuit, and power amplifier using the base bias circuit
05/02/2003EP1219024B1 Amplifier
05/01/2003WO2003036793A1 Operational transconductance amplifier circuit
05/01/2003WO2003036792A1 A power amplifier module
05/01/2003WO2003036791A1 Operational amplifier with chopped input transistor pair
05/01/2003WO2003036790A2 Variable gain amplifier with autobiasing supply regulation
05/01/2003WO2003036716A1 Multi-stage, high frequency, high power signal amplifier
05/01/2003WO2002075918A3 Modulator using class-e stage
05/01/2003US20030084408 Semiconductor integrated circuit designing method and semiconductor device
05/01/2003US20030080814 Distortion compensation apparatus and distortion compensation method
05/01/2003US20030080810 Operational amplifier with chopped input transistor pair
05/01/2003US20030080809 Methods and apparatus for amplification in high temperature environments
05/01/2003US20030080805 Temperature dependent constant-current generating circuit
05/01/2003US20030080800 Integrated analog multiplexer
05/01/2003US20030080786 Balanced transconductor and electronic device
05/01/2003US20030080774 Input/output circuit, reference-voltage generating circuit, and semiconductor integrated circuit
05/01/2003US20030080771 Control loop compensation circuit and method
05/01/2003US20030080349 Power amplifier with base and collector straps
04/2003
04/30/2003CN1415134A Remote sensing technology high-order filtering
04/30/2003CN1414797A Conversion equipment equipped with polarity reverse device
04/30/2003CN1414701A High common mode rejection ratio preamplifier
04/30/2003CN1414700A Current mirror induction amplifier and its operating mode
04/30/2003CN1414634A 半导体集成电路 The semiconductor integrated circuit
04/30/2003CN1414631A 半导体集成电路 The semiconductor integrated circuit
04/30/2003CN1107375C 半导体器件 Semiconductor devices
04/29/2003US6556848 Power amplifier
04/29/2003US6556814 Memory-based amplifier load adjust system
04/29/2003US6556416 Variable capacitor and a variable inductor
04/29/2003US6556155 Method and integrated circuit for temperature coefficient compensation
04/29/2003US6556085 Low power low noise amplifier
04/29/2003US6556084 Linearized class C amplifier with dynamic biasing
04/29/2003US6556081 Single-ended, ultra low voltage class AB power amplifier architecture having a common-mode feedback quiescent current control circuit
04/29/2003US6556079 Distortion compensating device and method for compensating distortion
04/29/2003US6556078 Integrated low-corner frequency high pass filter circuit
04/29/2003US6556077 Instrumentation amplifier with improved AC common mode rejection performance
04/29/2003US6556075 Amplifier system and method that approximate constant impedance and quiescent outputs during forward and reverse modes
04/29/2003US6556074 Differential amplifying circuit and multi-stage differential amplifying circuit using the same
04/29/2003US6556073 Transconductor and filter circuit
04/29/2003US6556072 Low distortion circuit with switched capacitors
04/29/2003US6556050 High speed signal window detection
04/29/2003US6555964 Device, notably for controlling a travelling-wave tube
04/24/2003WO2003034593A1 Amplification circuit
04/24/2003WO2003034587A1 Method and system for proportional plus integral loop compensation using a hybrid of switched capacitor and linear amplifiers
04/24/2003WO2003034586A1 Rf power amplifier circuit
04/24/2003WO2003034576A2 Method and system for charge pump active gate drive
04/24/2003WO2003034391A2 Method and system for adjusting the voltage of a precharge circuit
04/24/2003WO2003034388A2 Circuit for predictive control of boost current in a passive matrix oled display and method therefor
04/24/2003WO2003034387A2 Method and clamping apparatus for securing a minimum reference voltage in a video display boost regulator
04/24/2003WO2003034386A2 Method and system for ramp control of precharge voltage
04/24/2003WO2003034385A2 System and method for illumination timing compensation in response to row resistance
04/24/2003WO2003034384A2 Method and system for precharging oled/pled displays with a precharge latency
04/24/2003WO2003034383A2 Drive circuit for adaptive control of precharge current and method therefor
04/24/2003WO2003034316A1 Amplifier modulation
04/24/2003WO2003034185A2 Method and system for dsl power saving
04/24/2003WO2003033749A1 Matrix element precharge voltage adjusting apparatus and method
04/24/2003WO2003012982A3 Tuned damping circuit for power amplifier output
04/24/2003US20030076967 Microphone preamplifier
04/24/2003US20030076896 Method and apparatus for the linearization of a radio frequency high-power amplifier
04/24/2003US20030076285 Slew rate controlled ramp and its use in liquid crystal displays
04/24/2003US20030076174 Radio frequency amplifier
04/24/2003US20030076173 Multi-stage, high frequency, high power signal amplifier
04/24/2003US20030076171 Power amplifier
04/24/2003US20030076170 Variable-gain amplifier
04/24/2003US20030076169 Translinear variable gain amplifier
04/24/2003US20030076167 Multistage doherty amplifier
04/24/2003US20030076166 Composite amplifier
04/24/2003US20030076163 Differential amplifying method and apparatus capable of responding to a wide input voltage range
04/24/2003US20030076080 Linear power conversion circuit
04/24/2003US20030075986 BiCMOS AC filter circuit
04/24/2003US20030075771 Semiconductor integrated circuit
04/24/2003US20030075736 Semiconductor integrated circuit
04/24/2003DE20119647U1 Low frequency low level signal amplifier for infrared detector has shared amplifiers
04/24/2003CA2462985A1 Amplifier modulation
04/23/2003EP1303909A1 Electronic circuit for converting a signal and amplifier incorporating same
04/23/2003EP1303908A1 An electrical arrangement having improved feedback stability
04/23/2003CN1412943A Bridging load output class D amplifier using filter coil and low pass electric filter
04/22/2003US6553216 RF tunable filter arrangement with tunable image trap
04/22/2003US6552708 Unit gain buffer
04/22/2003US6552634 Wideband, minimum-rating filters and multicouplers for power amplifiers
04/22/2003US6552615 Method and system for compensation of low-frequency photodiode current in a transimpedance amplifier
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