| 摘要 |
<p>PURPOSE:To make the operation stable by adopting a comparator with a hysteresis for a comparator connecting to a connecting CR terminal, CONSTITUTION:With a trigger pulse entering a terminal A1, a point D1 is started for charging, and when the level of the point D1 reaches a threshold voltage V1 of a comparator, since the comparator has a hysteresis characteristic, the output of the comparator 10 is inverted immediately, the output level of a gate 2 goes from L to H, a constant current I1 flows to a base of an npn transistor(TR) 3, the collector level goes to L and a capacitor C7 discharges the electric charge at the point D1. Even when the circuit constant CR is increased, the monostable multivibrator is stably operated.</p> |
