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22C-B120A103
22C-B120A103
22C-B120A103
方波(Square Wave)是一种周期为T的周期性信号,它的波形是由两个不同的电平(通常是正电平和负电平)交替出现组成的,即在一个周期内先从一个电平跳跃到另一个电平,然后又跳回到原来的电平,如此循环。
在时域上,方波呈现出矩形的波形,其上升沿和下降沿的时间长度相等,且保持平顶的时间长度也等于上升和下降沿的时间长度,即占空比为50%。 可以用来产生其他类型的波形,如矩形波、锯齿波等,并且在数字电路中可以用来代表逻辑1和逻辑0。
占空比的意思是?
占空比(Duty Cycle)是一种用于描述脉冲信号特征的参数,通常用百分比表示。 它指的是脉冲信号中高电平(或低电平)的持续时间与整个脉冲周期的比值。
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