TIDA-00653: Schematic of Bi-Directional Firmware for TIDA-00653

Hi,

The ADC input range is 0-2.5V, so all the measured signals are scaled for this as follows:

1. Input voltage: 33k and 1k resistor divider = 1/34 of 20V-40V nominal input

2. Output voltage: 8.06k and 1k resistor divider = 1/9.06 of 11-14 nominal output

3. Current is measured across 1mOhm sense resistor and then amplified x26.1 and centered at 1.25V giving an effective range of +-48A measurement range. (1.25V at ADC input = 0A, 0V = -48A, 2.5V = 48A)

Please let me know if anything is not clear or if any other questions.

Regards,

Swami