如果输入的电压是正三伏，那么输出的电压便是负六伏。

If the input voltage is plus three, it comes out as minus six.

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在采用降压开关功率开关转换器降低正输入电压的同时，通常还需要一个额外的低功率负输出电压。

When we use low-dropout switching power switching converter to reduce positive input voltage, we usually need an extra low - power negative output voltage.

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就模拟输入而言，使模数转换器不能区别其变化的超范围的绝对电压值。超载值对于正输入和负输入可能不同。

For analog inputs, any absolute voltage value above which the analog-to - digital converter cannot distinguish a change. The overload value can be different for plus and minus inputs.

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