提出了一种新的光电开关电路设计形式（差分形式的光电开关电路），解决了在低电压宽供电电源下，光电开关电路难以正常工作的问题。
This Paper Provides a kind of new designing form used in the photoelectric switching circuit. It solves the problem happened at the photoelectric switching circuit with low voltage and wide range.
提出了一种新的光电开关电路设计形式（差分形式的光电开关电路），解决了在低电压宽供电电源下，光电开关电路难以正常工作的问题。
This Paper Provides a kind of new designing form used in the photoelectric switching circuit. It solves the problem happened at the photoelectric switching circuit with low voltage and wide range.
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