一种基于jfet的精确线性浮动压控电阻电路

2014 Annual IEEE India Conference (INDICON) Pub Date : 2014-12-01 DOI:10.1109/INDICON.2014.7030568

Rani Holani, P. C. Pandey, Nitya Tiwari

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引用次数: 1

摘要

提出了一种基于jfet的精确线性浮动压控电阻(VCR)电路，用于模拟乘法器和可编程模拟电路以及电阻镜。它使用匹配的JFET对以及基于运放的负反馈来实现精确电阻，并将源极和漏极电压反馈到栅极以实现线性浮动电阻。通过电路仿真和实际测试验证了电路的运行。

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A JFET-based circuit for realizing a precision and linear floating voltage-controlled resistance

A JFET-based circuit for realizing a precision and linear floating voltage-controlled resistance (VCR) is presented for use in analog multipliers and programmable analog circuits and as a resistance mirror. It uses a matched JFET pair along with an op amp based negative feedback for realizing a precision resistance and a feedback of the source and drain voltages to the gate for realizing a linear floating resistance. The circuit operation is validated through circuit simulation and practical testing.

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来源期刊

2014 Annual IEEE India Conference (INDICON)

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