一种新型数字式断电延时继电器

A Kind of New Digital Type Power-off Time Delay Relay

介绍了一种采用CMOS数字电路、数字拨盘开关整定、无辅助电源的断电延时继电器的组成及工作原理。阐述了各主要电路的构成及作用,并给出了电路图。结果表明,该继电器由于采用了：级蓄能技术,使继电器的扩展性非常好,通过少些改动可实现二段断电延时、带滑动触点的断电延时、带瞬时触点或多段断电延时。

Introduction was made to the composition and working principle of a power-off time delay relay which adopts CMOS digital circuit, digital dial disc for switch setting and without auxiliary power. Description was made for each main circuit＇s composition and function as well a the circuit drawing. Results show since the relay with two step energy storage technique which enables very good extension for the relay, via little change two section power-off time delay, with sliding contact point power-off time delay and with instantatenous contact point or multi-section power-off time delay can be achieved.