# Back EMF and voltage headroom
# Scope: Motor electrical power balance at a supplied SI back-EMF constant.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

constant = 0.05 V*s/rad
speed = 3000 rpm
current = 2 A
resistance = 1 ohm

emf := constant*speed [V]
required := emf+current*resistance [V]

check bus voltage budget: required <= 24 V

scenario alternative: constant = 0.04 V*s/rad