| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain a reset state of a control object regardless of the time condition by using a circuit element to prevent the state change when the control object is reset and feeding the output of the circuit element back to the output of a controller or the input of a circuit element. SOLUTION: The output TA of a driver module 101 is fed back via a resistor 105 of high resistance to form a kind of flip-flop which can set or reset aμC port P of a microcomputer 100. Owing to the use of the resistor 105 of high resistance, the port P can be changed between the active low and high levels. As a result, the active state that is intended at an output stage 102 is changed. As the RC elements 106 and 107 are connected between the microcomputer 100 and the module 101, a prescribed voltage level is secured.</p> |
