针对某些CCD的时序信号有三个电平阶梯的时序波的形式,对其进行时序和驱动设计是比较复杂的,有必要探讨设计一种简单可行的电路以降低设计和调试复杂度。探讨了几种可行的方案,对这几种方案进行了研究比较。介绍了利用一个运算放大器和两个驱动器设计的方案,具有电路结构简单,使用元器件数量少,通用性强,得到的波形足够精确。 For some CCDs, the timing signals have the form of three level ladder waveforms. It is more complicated to design timing and driving designs. It is necessary to discuss designing a simple and feasible circuit to reduce the design and debugging complexity. Several feasible solutions are discussed, and several schemes are compared and researched. The scheme of using an operational amplifier and two drivers is introduced. The circuit has the advantages of simple circuit structure, small number of components, high universality and accurate enough waveform.