Patent ID: 8680708

Claim:
An electronic apparatus comprising: a main circuit section including a control processor that controls operation of the electronic apparatus in response to various events, and a voltage output section that outputs a second voltage under control of said control processor; a power line to which is supplied DC electric power from outside said electronic apparatus; a gate which supplies the DC electric power from said power line to said main circuit section while said gate is turned on, and stops supplying the DC electric power to said main circuit section while said gate is turned off; a lock-type power switch of which a position of a mechanical member toggles between an ON position and OFF position in response to user's operation thereof, and the ON or OFF position of the mechanical member being mechanically retained; an initial controller to which the DC electric power is supplied from said power line through said lock-type power switch while said mechanical member is in the ON position, said initial controller outputting a first voltage for a first predetermined period just after the supply of the DC electric power to said initial controller starts; a first driver which turns on said gate while said initial controller outputs the first voltage; and a second driver which turns on said gate while said voltage output section outputs the second voltage, wherein said gate is turned off while none of said first driver and said second driver turns on said gate, wherein said lock-type power switch enables said first driver and said second driver while said mechanical member is in the ON position, and disables said first driver and said second driver to turn off the gate while said mechanical member is in the OFF position, and wherein said control processor is adapted to: within said first predetermined period just after said gate starts supplying the DC electric power to said main circuit section, control said voltage output section to start outputting the second voltage; and when no event has been detected for a second predetermined period by said control processor, control said voltage output section to stop outputting the second voltage, to thereby turn off said gate.