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Question
Is Power Supplies' input side (primary) isolated from the output side (secondary)?
Answer
The primary and secondary are isolated by a transformer and photocoupler. The ground is separated from the internal circuit by capacitors.
Example: Block Diagram of S82J-050[][][][] (50 W) Switch Mode Power Supply
Other Power Supplies FAQ
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The output indicator turns ON, but then turns OFF immediately. What is the cause of the problem and solution (in models equipped with the overvoltage protection function)?
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The output voltage decreased while Power Supplies are in use. What is the cause of the problem and solution?
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What is the proper wiring method to use when wiring the input and output?
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