| 摘要 |
PROBLEM TO BE SOLVED: To maintain normal operation even if there is a difference in the time until each on-board power source getting to a stable level, in the power supply control circuit of a device which is composed of plural packages and on which on-board power sources to generate the power within the packages, with external power inputted through a common switch to each package, are mounted. SOLUTION: Each package 10-12 is equipped with each voltage monitoring and notice means 10e, 11c, and 12c which notifies each package equipped with a monitoring and control function of normal operation when it detects the voltage of each on-board power source 10d, 11b, and 12b reaching the predetermined level by the supply of power by an external power source 2, and each mounting information notice means 10f, 11a, 12a which notifies each package equipped with the above monitoring and control function of the mounting information which shows the mounting condition to the device of the package. Each package 10-12 equipped with a monitoring and control function is so constituted as to perform the control to start the device at large by receiving the notice of the normal operation and the notice of mounting information from each package and checking both notices of the normal operation and the mounting information. |
