Hi all,
I'm making a very simple clock using a PIC16F870, with 4x 7-segment displays and latching drivers (HCF4511BE) to keep them nice and bright.
In testing the circuit with simple static digits, I get a problem when I connect more than two of the displays. I've worked out that it's a power issue as the 5 volt regulator (L7 805CV) I'm using is getting very hot.
What it the best way to isolate the logic from the display circuitry?
thanks for your time!
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