摘要
本文报导了一种高精度、低成本工频频率电压变换器（ＦＶＣ）。它由倍频电路、基本ＦＶＣ，低通滤波器和输出增益及调整级组成。其特点是电路简单，非线性误差小于０．０５％，所测频率的分辨率为０．５％Ｈｚ。本文详细介绍了其工作原理、电路结构及实验结果。
This paper presents a low cost and high performance frequency to voltage converter for work frequency. It is composed of double frequency, basic freuency to voltagc converter, low-pass filter and adjusting gain output and characterized by its simply architecture,lower nonlinearity error. It offers a 0 to 5V output voltage change in response to a 45Hz to 55Hz input change. Now the circuit is used in power line monitoring.
出处
《南开大学学报（自然科学版）》
CAS
CSCD
1994年第2期58-61,共4页
Acta Scientiarum Naturalium Universitatis Nankaiensis
