POWER CONVERSION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide power conversion equipment which can cope with downsizing/higher performance/higher function by being able to extend the power supply time to a control circuit without enlarging a smoothing circuit and an internal control power circuit.

SOLUTION: The supply of power to a cooling fan is intercepted by switching off a switch 9 between a control power source 1 and a cooling fan 4 by microcomputer control when it detects the voltage based on the break of input power.

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