Patent ID: 11923757
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. The electronic device of claim 14, wherein the control unit is configured to:
if the user device is in the second designated state, in response to identifying to complete the charging of the capacitor, switch the state of the first signal transmitted from the control unit to the state detecting unit from the first state to the second state to turn off the LED of the first photo coupler,
wherein the transistor of the first photo coupler is turned off based on turning off the LED of the first photo coupler,
wherein the anode and the cathode of the first diode are changed to the low state based on turning off the transistor of the first photo coupler,
wherein the first FET of the power cut-off unit is turned off by changing the state of the gate of the first FET to the low state by changing the cathode of the first diode connected with the gate of the first FET to the low state,
wherein the power cut-off unit is further configured to cut off the DC power provided to the driving power supply unit based on turning off the first FET.