| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a discharge control circuit including an overheat protection circuit with a thermister, capable of solving the following problems: a comparator used in such an overheat protection circuit consumes electric power during overdischarge and overdischarge further accelerates, and the consumption of a current running through the thermister is large during normal operation. <P>SOLUTION: The present invention includes: a switch circuit that controls a current running through a thermister connected to the outside; a timing circuit that intermittently operates the switch circuit; and a comparator that compares an output voltage of the thermister to that of a constant-voltage circuit, and is configured to turn off the switch circuit, the timing circuit, and the comparator during overdischarge. <P>COPYRIGHT: (C)2012,JPO&INPIT |
