POWER SUPPLY FAILURE DETECTION CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a power supply failure detection circuit having a sufficiently long holding time in an instantaneous stop.

SOLUTION: The power supply failure detection circuit 100 includes a detection unit 100a and a control unit 100b. The detection unit 100a detects that a power supply is turned off when a voltage value of power from the power supply reaches the preset minimum voltage value. The control unit 100b starts transmission of a control signal for stopping an operation of a converter with the detection of power-off by the detection unit 100a as a trigger.

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