| 摘要 |
<p>PURPOSE:To prevent malfunction due to a deviation in an operation between a basic device and a load by monitoring a DC output value by using a microcomputer incorporating an A/D converter, and ensuring an operation assuring voltage for a prescribed load in a specific area. CONSTITUTION:The microcomputer incorporating the A/D converter is used for a DC output value monitoring circuit, +5V and + or -12V generated by a DC+5V generating circuit 4 and a DC+ or -12V generating circuit 5 are inputted, converted into digital values by the A/D converter, and the DC values are monitored by using an arithmetic part in the microcomputer. Then, at the time of power restoration, the sequence and time of the rising of the voltage at each voltage generating circuit 4 and 5 is controlled so that the + or -12V can reach the operation assuring voltage area for the load after the +5V value can reach the operation assuring voltage area. Also, at the time of power interruption, the sequence and time of the rising of the voltage at each of voltage generating circuits 4 and 5 is controlled so that the voltage of the voltage generating circuit 4 for the basic device can be decreased from the operation assuring voltage area after the + or -12V is decreased from the operation assuring voltage area.</p> |
