Input Power
Parts List:
CON1 Barrel Jack
The Low Voltage circuit is a buck switched mode voltage regulator. Its job is to reduce the
external voltage from the power adapter down to a known and stable 5V to drive the micro-
controller and the LEDs.
You can also supply power using the 2.54mm header if you prefer.
Put the connector on the board in the marked locations.
Test Step
5V power supply
Hook up the power, and check the 5V line.
Check that the voltage between the “GND” test point and the “5V” test point. It
should read a voltage of between 4.9V and 5.1V.
Test Step
170V power supply
Check the voltage at the 170V test point. You should read a voltage of between
165V and 175V.
No components should make a noise or get hot.
At the end of this step, your board should look like this:
If you want to watch a video of this build step, please see the associated
video at:
https://www.bitchute.com/video/Kjl5Li9KGav4/
8
Input power
