| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a device or logic from being damaged or broken even when power is turned on while a power source harness is disconnected or damaged. <P>SOLUTION: The electronic device includes a unit A having a CPU 21 for controlling a PSU 1 that supplies power of two or more systems, a unit B receiving power A (5 V) supplied from the PSU 1 and power B (3.3 V) generated at a predetermined voltage from the power A, a first connector CN1 for connecting a signal line between the units A and B, and a second connector CN2 for supplying the power B from the unit A to the unit B. The power A, which is the power of one of the two or more systems, is automatically supplied by turning on a system power source. The power B as the other one is supplied on the basis of a PONENG signal from the unit A to the PSU 1. When no power is supplied from the second connector CN2, the PONENG signal output from the unit A is prohibited from being output. <P>COPYRIGHT: (C)2011,JPO&INPIT |
