Power Selection ADC Reading Values

Owned by Jarvis Weng
Jun 13, 2020
1 min read
DCDC current sense at 16A, 3.4V AUX current sense at 16A, 3.4V Power Supply current sense at 16A, 3.4V DCDC voltage sense: Max:14.40V, 2.73V Min:10.42V, 1.98V AUX voltage sense: Max:14.92V, 2.83V Min:9.39V, 1.78V DCDC voltage sense: Max:14.59V, 2.77V Min:11.57V, 2.19V

 

Aux Temp:

http://2avrmz2nom8p47cc28p2743e-wpengine.netdna-ssl.com/wp-content/uploads/2010/11/Thermistor_10K-2.pdf

The ADC reading for Aux is non-linear so we must divide the voltage to find the resistance value, the use the table to find temperature with the temperature.

V= 3.3 * 10k / (10k +Rtherm)

Need to rearrange to find the thermistor’s resistance, then use the table to find the temperature.