Piezo Switch/Relay Question

Discussion in 'General Electronics Chat' started by tedb103689, Nov 16, 2005.

  1. tedb103689

    Thread Starter New Member

    Nov 16, 2005
    2
    0
    I am using the button in an automotive application (12 volts) to trigger a relay. I would like to use a Piezo touch switch with an LED indicator to trigger a transistor which will in turn power a relay. I have a circuit built to trigger the relay for ½ a second with a 20ms or greater pulse of the piezo switch. However the 2 volts across the piezo LED is presenting problems. Do you have a circuit with any of you piezo switches that might show how to setup this sort of circuit?
     
  2. mozikluv

    AAC Fanatic!

    Jan 22, 2004
    1,437
    1

    hi

    could you show us the circuit of your project so we may know in detail your problem?

    moz
     
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