| 摘要 |
An exemplary signal transmitting circuit includes a drive circuit, a receiving circuit, and a filter circuit coupled between the drive circuit and the receiving circuit. The filter circuit includes a first photocoupler having a first luminous element and a first optical receiving block, an anode of the first luminous element is coupled to a power source, a cathode of the first luminous element is coupled to the drive circuit, an anode of the first optical receiving block is coupled to the power source and the receiving circuit, and a cathode of the first optical receiving block is coupled to ground.
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