How long can a SmartMotor supply its peak torque?
The SmartMotor can supply peak torque until the heat generated from the maximum current in the stator winding raises the temperature of the electronics above 70 degrees C. This time will depend on the ambient temperature and way the application allows the motor to disperse heat. If a motor is fan cooled, in cold air, or bolted to a large metal surface (which aids cooling from heat conduction and radiation) the motor will sustain peak torque for longer periods. A general answer is that the motor could supply peak torque for 10 seconds every minute. If it runs longer, more heat is generated which raises the temperature of the microchip and electronics. Then the motor must run at a lower power output, or stop, until it has cooled.
