| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power source control device capable of detecting abnormality of various sensors and mounted apparatuses in an ignition switch OFF period. <P>SOLUTION: This power source control device has a battery, backup RAM voltage generation of a CPU from battery voltage and both the boosting control function and the voltage reduction control function from the battery voltage, and generates voltage supplied to a microcomputer and voltage supplied to the sensors. and has both circuits of the ignition key OFF time measuring function and a soak timer for diagnosing the various sensors. The soak timer also outputs the voltage to the microcomputer and the sensors after a set time of starting time from the microcomputer, and stops again the voltage output to the microcomputer and the sensors after a set time of stopping time after starting passes. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
