DCC decoder motor voltage vs. applied DC voltage

This graph simply shows the applied motor voltage vs. applied track voltage on a DCC decoder powered by a DC power supply. The key points here are:

1) Decoder "wakes up" at around +5V

2) Decoder starts to apply voltage to the motor at around +7.5V

3) Voltage increases linearly with applied track voltage up to motor maximum voltage

4) The starting voltage applied to the motor at +7.5V is programmable with configuration variable (CV) 63

5) The maximum voltage applied to motor is programmable with CV 64

 

Done