The invention belongs to the technical field of
medical instruments, and discloses a standby circuit of an automatic external
defibrillation device and a control method, a real-time
clock chip independently maintains a timing function and directly drives a state indication screen, and a master control single-
chip microcomputer is awakened by the real-time
clock chip to supply power only during self-inspection. By adopting the architecture, the interference of resetting or running of the main control
single chip microcomputer on the timing precision is thoroughly eliminated, the
single chip microcomputer reaches a theoretical zero
power consumption state in a standby state, and meanwhile, through the power supply separation design of the functional modules, an unnecessary
standby power consumption source is systematically stripped. And finally, the timing reliability is remarkably improved,
absolute accuracy of the self-checking
rhythm is ensured, meanwhile, the
standby power consumption is reduced to be close to the limit level of the working
power consumption of the real-time
clock chip, the service life of a battery is greatly prolonged, and the accessory cost is reduced.