Startup and shutdown circuit for battery power supply and startup and shutdown time sequence design method

The invention provides a startup and shutdown circuit for battery power supply, which is characterized by comprising a startup and shutdownkey, a startup circuit system and a shutdown circuit system; the startup circuit system comprises a startup circuit, a power supply circuit, a microprocessor, a startup locking circuit and a startup indicating circuit. The shutdown circuit system comprises a shutdown circuit, a power supply circuit, a microprocessor and a startup locking circuit. Another technical scheme of the invention is to provide an startup and shutdown time sequence design method of the startup and shutdown circuit for battery power supply. The invention provides a startup and shutdown circuit design for battery power supply so as to ensure safe and reliable operation of a system powered by a battery. Compared with the prior art, thestartup and shutdown circuit has the advantages of being simple in circuit structure, high in reliability and low in power consumption, and solving the problems that an e