本文研究逻辑步进器的原理,主要讨论步进器布尔代数方程组的推导过程,初始工作状态的建立与调整,跳选功能的实现等等。逻辑步进器是一种新型的步进器,它具有较高的可靠性和灵活性,因此有广泛的用途。 This paper studies the principle of logic stepper, mainly discusses the derivation process of stepper Boolean algebraic equations, the establishment and adjustment of initial working state, the realization of skip function and so on. Logic stepper is a new type of stepper, it has a high reliability and flexibility, it has a wide range of uses.