please help 555 problem

i have made a monostable timer circit that works ok using a relay timed to turn of after 7 secs it works on about 8 volts it is used on my car to control 3 relays to wind up the window motors what happens is that when triggerd it keeps re triggering but when disconected from the relays in car its ok its as if the 555 can
sense the current drop as i have circuit breakers in line to stop motor damage and when they kick back in the 555 retriggers please help

Posted by carlos (carl.daley1@ntlworld.com) on 15/05/2004, at 20:47 GMT