The circuit, through evaluating the input voltage and controlling the selector of the measuring scale, realizes automatic selection in high precision instrument.
该电路通过对被测电压的判断和量程选择器的控制，实现了在高精度仪表中量程的自动选择。
A kind of circuit for automatic range selection of voltmeters is introduced and designed.
提出并设计了一种适用于电压表的量程自动转换电路。
A kind of circuit for automatic range selection of voltmeters is introduced and designed.
提出并设计了一种适用于电压表的量程自动转换电路。
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