Supply circuit postpones

The utility model discloses a supply circuit postpones, including electric capacity C1, the general supply is connected to electric capacity C1's one end, electric capacity C1's the other end and triode Q1's the equal ground connection of projecting pole, and the one end of relay JD1 coil and relay JD1's movable contact are still connected to the general supply, and triode Q1's collecting electrode is connected to the other end of relay JD1 coil, and relay JD1's normally open contact is as supplying electrical output. The utility model discloses charged to electric capacity C1 through resistance R1 based on last when electricity, electric capacity C1 both ends voltage can only gradually change and the principle that can not suddenly change to when combining the circular telegram of relay JD1 between movable contact and the normally open contact switch just closed characteristic design form, circuit structure is simple, small, with low costs. 本实用新型公开了种延迟供电电路，包括电容C1，电容C1的端连接总电源，电容C1的另端与三极管Q1的发射极均接地，总电源还连接继电器JD1