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本文介绍了用于交流数字电压表中的高频AC—DC转换器。该转换器采用非线性函数运算电路对二极管检波后的非线性曲线进行校正,获得了输入与输出为1:1的变化关系,从而实现了高频交直流的线性转换。
This article describes the high frequency AC-DC converter used in AC digital voltmeters. The converter uses a non-linear function arithmetic circuit to correct the non-linear curve after the diode detection, and obtains a 1: 1 variation relationship between input and output, so as to realize high-frequency AC-DC linear conversion.