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Electronics relay "latch" circuit

Discussion in 'Modding' started by nickch, 7 Feb 2003.

  1. nickch

    nickch What's a Dremel?

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    if i'm not mistaken, its possible to create an on/off circuit using momentary switches involving relays and transistors..
    anyone know where i can find sites which have these circuits?
    thanks
     
  2. acrimonious

    acrimonious Custom User Title:

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    A momentary switch and a relay would do it.

    Knocked up this for you:
    [​IMG]
     
  3. cpemma

    cpemma Ecky thump

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    You need a 2-pole relay, with one relay switch wired in series with the relay coil...by-passed by the push-to-make on button, and in series with a push-to-break off button.

    The second relay switch then provides power to the load.
     
  4. nickch

    nickch What's a Dremel?

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    well.. i was wondering if i could make it using just one momentary switch..
    i'm making a powerbus to power my ccfl and el wires and i'm going for a neat look.. i can get nice and small momentary switches and am looking to make it on when i push a button and make it off when i push the same button again.
    thanks for your help anywayz..
    i know it can be done using a combination of 2 or more transistors but i'm not sure how to wire it up
     
  5. Johnny_Do

    Johnny_Do What's a Dremel?

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