摘要
给出一款电子定时开关电路 ,该定时开关电路采用 RC长定时方法 ,此方法基于晶体三极管基极和集电极电流之间的关系 i C=βi B,通过电阻 R、电容 C和晶体三极管恰当连接 。
This paper gives a switch circuit of electronic timing,which uses a long-timing method of the RC circuit.This method is based on the current relation i C=β i B between the base and the collection of the transistor.The long-timing effect can be obtained by appropriate connection of the resistance R ,the capacitance C and the transistor.
出处
《电气开关》
2002年第3期33-34,46,共3页
Electric Switchgear
