DC Motor Back EMF Explorer

Aaron@ScotsCollege

Controls

Power Supply (Vs) 12 V (Fixed)
Mechanical Load OFF

Load slows the motor, reducing back EMF.

Motor Visualization

Supply (Vs)
Motor
OFF

Live Readings

Current (I)
0.00 A
Net (Vnet)
0.00 V
Back EMF
0.00 V

The Math:

Net Voltage (Vnet) = Vs - Eb

Current (I) = Vnet / R

Where R is motor resistance (2.0 Ω).

Time History