Time delay relay on

Discussion in 'Electronics Resources' started by Dookers, Mar 31, 2012.

  1. Dookers

    Thread Starter New Member

    Mar 31, 2012
    I need a 5 second delayed relay driver with some qualifications -
    When the input goes to ground momentarily. 5 seconds later, the output closure occurs for 1 second, then opens. Must automatically reset. No rst pulse available.

    The delayed relay driver can be done with a 555 timer but it must latch after the input ground is removed, then 5 seconds later produce a 1 second duration closure which will close a relay.

    Suggestions will be appreciated.
  2. praondevou

    AAC Fanatic!

    Jul 9, 2011