【摘要】 分析了几种定时开关电器设计方案的利弊;讨论了脉冲计数法设计方案的要点,给出了设计电路;研究了用单片机构成限时/延时开关,给出了硬件和软件设计.更多还原

【Abstract】 The advantages and disadvantages of several designs for auto-timing controller are analysed. The key of design for pulse counting is discussed. The circuit designed is presented. The time control switch with IC is studyed.更多还原