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

Claim 10:
11. The electronic device of claim 10, wherein the control unit is configured to:
switch, in response to identifying that the level of the voltage of the charged capacitor reaches below the designated level while the user device is in the second designated state, the state of the first signal that is transmitted from the control unit to the state detecting unit from the second state to the first state to maintain the activate state of the RF signal reception module,
wherein the LED of the first photo coupler is turned on based on the first signal switched to the first state,
wherein the transistor of the first photo coupler is turned on based on turning on the LED of the first photo coupler,
wherein the anode and the cathode of the first diode are changed to a high state based on turning on the transistor of the first photo coupler,
wherein the first FET of the power cut-off unit is, in response to changing to the high state of the anode and the cathode of the first diode, turned on based on a voltage applied to the gate of the first FET through a fourth diode that is further included in the power cut-off unit and is connected with the gate of the first FET,
wherein the power cut-off unit is configured to provide, to the driving power supply unit, the DC power based on turning on the first FET, and
wherein the charging power unit is configured to charge the capacitor through the second diode based on a voltage provided from the driving power supply unit.