Square Wave Generator方波发生器
This square wave generator is like the Schmitt trigger circuit in that the reference voltage for the comparator action depends on the output voltage. This circuit is also classified as an astable multivibrator. 这个方波发生器类似于施密特触发器电路，因为比较器动作的参考电压取决于输出电压。该电路也被归类为无稳多谐振荡器。
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Period of Square Wave Generator方波发生器的周期
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Square Wave Period: Details方波周期：详情
 Now taking the natural logarithm of both sides: 现在对两边取自然对数：
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Square Wave Generator方波发生器
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Square Wave Generator Process方波发生器过程
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, the frequency does not depend upon this supply voltage. If you supplied it with a variable voltage, you could freely change the amplitude without changing the frequency. You could then make it a variable frequency source by making either C or R variable.