With increasing automatic extent, the insulation between domination and spot circuit become more and more important, and become core of auto-control system. Preventing from interference, control cell must be insulated with transformer and actuator; our photoelectric coupling module could complete above functions. In addition, it is used for different voltage and power area, as interface component matching with peripheral equipment of course control and control, signal and regulating device. It's very extensive in practical application, because electric coupling could supply necessary safety interface and have below characters.
Small waste of control ending signal
High turning frequency
No touching dithering
Get out of vibration
Do not affect by position
No machinery component
Long life-span
High insulated voltage
Above mentioned advantages, photoelectric coupling have become another method except of relay coupling.