| 摘要 |
PURPOSE: A cut circuit of an over-current is provided to protect an electronic component from the over load generated from a secondary circuit of a converter of a refrigerator. CONSTITUTION: The cut circuit of the over-current has:a micomputer to detect an error by detecting power fed from a secondary circuit of a refrigerator, and to output a certain control signal when detecting the error; an isolation circuit(20) turn off each a first(RY1), a second(RY2), and a third relay switch(RY3) fed to a compressor(40), a fan motor(50), and a defrost heater(60) of the refrigerator when feeding the certain control signal from the micomputer(10).
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