Patent ID: 9729004
Date: 2017-08-08
CPC Classifications: H02J,Y02B,Y04S

Claim:
1. A power source protection device, comprising: a power supply configured to provide a DC input voltage; a power source managing unit configured to receive the DC input voltage, wherein when a determining voltage corresponding to the DC input voltage is larger than a set voltage, the power source managing unit enters a startup state, outputs a supply voltage and starts counting an enabling time; and a signal sending unit configured to receive the supply voltage from the power source managing unit as a power source, wherein when the signal sending unit sends a control signal to the power source managing unit within the enabling time, the power source managing unit transforms the DC input voltage into a standby power output voltage and provides the standby power output voltage, and when the power source managing unit does not receive the control signal within the enabling time, the power source managing unit enters a shutdown state.