| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of correctly determining whether a resistance circuit has an abnormality or not even when a voltage of direct current power supply is changed. <P>SOLUTION: A control circuit 13 comprises a resistance voltage detecting circuit 131, a high voltage battery voltage detecting circuit 132, and a microcomputer 135. The microcomputer 135 changes predetermined first and second abnormality determination thresholds based on the voltage of a high voltage battery B10 detected by the high voltage battery voltage detecting circuit 132. Then, the microcomputer 135 compares the voltage of a resistance 121 detected by the resistance voltage detecting circuit 131 with the changed first and second abnormality determination thresholds and determines whether or not a resistance circuit 12 has an abnormality. For this reason, the first and second abnormality determination thresholds can be changed to suitable values, even when the voltage of the high voltage battery B10 is changed. Therefore, it can be determined correctly whether or not the resistance circuit 12 has an abnormality, even when the voltage of the high voltage battery B10 is changed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
