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首页> 外文期刊>Analog Integrated Circuits and Signal Processing >A novel full-wave rectifier/sinusoidal frequency doubler topology based on CFOAs
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A novel full-wave rectifier/sinusoidal frequency doubler topology based on CFOAs

机译:基于CFOA的新型全波整流器/正弦频率倍增器拓扑

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摘要

A novel topology for realizing voltage-mode (VM) full-wave rectifier/sinusoidal frequency doubler based on current feedback operational amplifiers (CFOAs) and n-channel metal-oxide semiconductor (NMOS) transistors is proposed in this study. The proposed full-wave rectifier structure employs two CFOAs and three enhancement-mode NMOS transistors. With a slight modification, the sinusoidal frequency doubler circuit can be adopted from the full-wave rectifier circuit by replacing a grounded resistor instead of one of the NMOS transistors. Both of the proposed circuits enjoy low output and high input impedance properties which make them convenient for cascading easily with other VM circuits without needing any extra buffer circuits. No passive component matching conditions are needed. The proposed circuits are simulated by using SPICE program to verify the theoretical analysis.
机译:本研究提出了一种基于电流反馈运算放大器(CFOAS)和N沟道金属氧化物半导体(NMOS)晶体管的基于电流反馈的电压模式(VM)全波整流器/正弦频率倍增器的新颖拓扑。 所提出的全波整流器结构采用两个CFOA和三个增强模式NMOS晶体管。 通过略微修改,通过更换接地电阻而不是NMOS晶体管,可以从全波整流电路采用正弦倍频器电路。 两个所提出的电路都享有低输出和高输入阻抗特性,这使得它们方便地与其他VM电路轻松级联,而无需任何额外的缓冲电路。 不需要无源组件匹配条件。 通过使用Spice程序来验证理论分析,模拟所提出的电路。

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