Power
What is Power Supply?
Definition
A circuit or device that converts mains AC power into regulated DC voltages required by electronic control circuits. Power supply failures in PLCs, drives, and HMIs cause complete system shutdowns and are a frequent repair item.
Related Terms
Voltage Regulator
A circuit or device that maintains a constant output voltage despite variations ...
Transformer
An electromagnetic device that transfers electrical energy between circuits by c...
UPS (Uninterruptible Power Supply)
A device that provides backup power during mains outages using stored battery en...
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