Multifunction appliance protection circuit diagram

Posted on Mar 28, 2007

Circuit is shown, which consists of a DC voltage regulator circuit, the delay circuit, overvoltage and undervoltage protection part of the implementation of circuit, and the li

Multifunction appliance protection circuit diagram
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ke. ICl integrated voltage regulator circuit LM7812 + 12V output voltage. Undervoltage and overvoltage protection circuit sampling by the R2, potentiometer RP2, the regulator DWl, VTl and Rl, RPl, DW2, VT2 and OR circuit VD5, VD6, VT3, control relays J1 constitution.Figure, VT1 ~ VT3 selection 3DG4, thyristor VS selection 6A/400V, VD1 ~ VD7 selection 1N4004, relay J1 selection JRC-1M 12V.

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