1. January 30, 2013 at 11:38 am



    I was hoping to use this exercise to power a 24v LED strip with a series of 2 A27 12V batteries utilizing a tactile on/ off switch. Is this possible?

    1. June 30, 2013 at 2:27 am


      You might need to include a common emitter stage between the logic and the output circuit but it’s always possible.

      The 555 isn’t designed to output a lot of current so it’s better to use it to drive the base/gate of a transistor and let the transistor do the work of sinking whatever current your device needs. If you’re using a BJT just remember to use a resistor between the output and the base or the 555 will pump out a lot of current, followed by smoke.


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