FLASH SWITCH ON-OFF DETECTION CIRCUIT AND ELECTRONIC DEVICE

This disclosure relates to an on-off detection circuit (100) for a flash switch (200), belonging to a technical field of flash switches (200). The on-off detection circuit (100) for a flash switch (200) includes an on-off detection module (110) and a control module (120). An input end of the on-off detection module (110) is connected with a power supply (300) through the flash switch (200), the on-off detection module (110) is configured to acquire a digital signal as a detection level according to an electromagnetic signal generated by input current. An input end of the control module (120) is connected with an output end of the on-off detection module (110), to receive the detection level and determine an on-off state change of the flash switch (200) according to the detection level.