HUMIDITY DETECTION AND POWER CUT-OFF DEVICE

摘要

A humidity detection and power cut-off device for electronic equipment is provided. The device is connected between a battery ( 10 ) and a motherboard ( 40 ) of the electronic equipment and includes an auto protection device ( 20 ) and a moisture-triggered device ( 30 ). The auto protection device is connected between the battery and the power management module and is used to establish or cut off the connection between the battery and the power management module. The moisture-triggered device is used to detect the immediate ambient humidity and controls the auto protection device. If the moisture-triggered circuit detects that the immediate ambient humidity exceeds a predetermined critical humidity value, the moisture-triggered device outputs a trigger signal to the auto protection device. The trigger signal controls the auto protection circuit to cut off a connection between the battery and the power management module, thus to achieve waterproofing protecting for the electronic equipment.