| 摘要 |
PURPOSE:To output a pulse with an always constant width independently of the width of a trigger input signal by controlling other RS flip-flop circuit so as not to be triggered again until the output of a pulse is finished after the circuit is triggered once by one RS flip-flop circuit. CONSTITUTION:When an input signal (a) is inputted, the 1st RS flip-flop circuit 11 is set and its Q output (g) changes from L to H. The change sets the 2nd RS flip-flop circuit 12 after a prescribed time. The Q output of the RS flip-flop circuit 12 resets the RS flip-flop circuit 12 resets the RS flip-flop circuit 11 through an inverter 16. Thus, a pulse having a prescribed time width obtained by a delay circuit is outputted. In such a case, the Q output (d) of the RS flip- flop circuit 12 is at L until the input signal (a) goes to L and reset to prevent the RS flip-flop circuit 11 from being set again. |
