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Re: l7805cv Gets hot! #bitx40help

 

yes...it DOES get hot.? put a small heatsink on it.? One of the issues is that it is the backlite for the LCD is connected to it. You can try changing out the series resistor for the backlite on the LCD to dim it down thus reducing the load or cut the trace and run dedicated power to it.


Virus-free.

On Sun, Oct 8, 2017 at 11:59 AM, Ben Bangerter, K0IKR via Groups.Io <bwbangerter@...> wrote:
The 5 V regulator on my raduino runs cool.? My raduino, including the LCD display, draws 76 mA at supply voltages from 8-12 volts.? Where is all your current going?? I removed the regulator and reinstalled it on the side of the board where the connctors attach.

Ben - K0IKR




--
Paul Mateer, AA9GG
Elan Engineering Corp.

NAQCC 3123, SKCC 4628
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