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我们知道。施密特触发器开通电压V_(+)和关断电压V_(-)之间具有一定的回差。利用这一现象,在其输入端如图1那样设置一个RC电路,便构成一张弛振荡电路。
we know. Schmitt trigger switch-on voltage V _ (+) and turn-off voltage V _ (-) has a certain backlash between. Using this phenomenon, an RC circuit is provided at its input as shown in FIG. 1 to form a relaxation oscillation circuit.