VOLTAGE CONTROLLED VARIABLE GAIN AMPLIFIER 专利名称：VOLTAGE CONTROLLED VARIABLE GAIN AMPLIFIER 发明人：OGAWA ATSUSHI 申请号：JP23577289 申请日：19890913 公开号：JPH0399505A 公开日：19910424 专利内容由知识产权出版社提供 摘要：PURPOSE:To prevent the occurrence of distortion regardless of the use of lateral...
A transistorized voltage-controlled variable-gain audio amplifier including a transistor connected as a common-emitter amplifier, and a control circuit coupled to the emitter of the amplifying transistor and operative in response to a direct control signal to vary the impedance at the emitter without...
A transistorized voltage-controlled variable-gain audio amplifier including a transistor connected as a common-emitter amplifier, and a control circuit coupled to the emitter of the amplifying transistor and operative in response to a direct control signal to vary the impedance at the emitter without...
Taidacent AD603 Low Noise Variable Gain Amplifier VCA Module Voltage Controlled Variable Gain Amplifier Circuit Product Description This amplifier module is a voltage controllable gain amplifier. It consists of two AD603 cascade amplifiers. It can ...
1. JFET voltage controlled gain amplifier and its application; 结型场效应管压控增益放大器及其应用2) Voltage control amplifier 压控增益放大3) Programmable Gain Amplifier 程控增益放大器 1. A programmable gain amplifier and its interface with microcomputer; 程控增益放大器及其与微机的接口 2. Three...
To operate these circuits as voltage-controlled oscillators, the capacitance C of the “LC” tuning circuit simply needs to be replaced, either by a diode with variable capacitance or by two varactor diodes assembled in an antiparallel fashion and biased by a voltage external, as indicated in Fi...
A voltage-controlled amplifier unit 2 amplifies an input signal with a gain variable according to a controlled voltage. A basic amplifier unit 1 amplifies the input signal with at least one fixed gain
专利名称：Variable-gain cascode amplifier using voltage-controlled and variable inductive load 发明人：Nuntha Kumar Krishnasamy Maniam,Yong Zhong Xiong 申请号：US10746087 申请日：20031226 公开号：US07019593B2 公开日：20060328 专利内容由知识产权出版社提供 专利附图：摘要：Circuits, such as a cascode ...
A system of voltage-controlled amplification is discussed, making use of the longtailed pair amplifier configuration. Gain is controlled by varying the emitter current and can be either realized linearly for amplitude modulation or with a logarithmic function in the case of manual or programmed level...
A voltage-controlled amplifier employs an operational amplifier (10) with negative feedback for setting the gain. A voltage variable resistance such as a junction-field-effect transistor (JFET) (13) is employed as part of a variable voltage divider for controlling the amplifier gain. Resistors (...