| 摘要 |
<p>PURPOSE:To obtain an inexpensive, space-saved and highly functioned automatic power supply control system by adding a sub-CPU and a local memory to the system and forming a power supply starting signal on the basis of an external power supply starting request to open/close an AC input line. CONSTITUTION:A CI signal for an RS232C is activated by an access outputted from a remote place, branched by an RS232C interface circuit 11 and inputted to the sub-CPU 12 through a signal line 101. The sub-CPU 12 is always kept at an operating state by current supply from an auxiliary power supply part 142 in a power supply device 14, detects the CI signal (line 101) by executing a program stored in a local memory 13 and generates a power supply starting signal (line 102). The power supply starting signal transmitted through the line 102 drives a relay control part 143, generates an exciting signal for a relay 144 and closes the relay 144 to supply the AC input to a main power supply part 141. Consequently, the main power supply part 141 generates various DC outputs to hold the whole data processor 10 at a current supply status.</p> |
