Flat motors with integrated electronics

May 1, 2008

Maxon motor is launching a range of brushless DC motors with integrated electronics. The range features established drives EC 20 flat, EC 32 flat and EC 45 flat with built-in speed controllers. The benefits of brushless flat motors, also known as external rotor motors where the rotating rotor shell encloses the fixed stator, include short overall length, high torque density and with their electronic current commutation, the motors have an extended service life.

The new EC 20 flat, EC 32 flat and EC 45 flat motors with integrated electronics also reduce the user’s need for control input to the absolute minimum. Current commutation is integrated in the motor through Hall sensors, a 1-quadrant speed controller and numerous protection functions. Motors are available as 2 and 5-wire versions.

In the 2-wire version, speed acts proportionately to the applied operating voltage of 10 - 28 volts. In the simplest case, the drive is powered directly by the battery. The 5-wire version offers additional functionality and a wider operating range with set value input, enable and speed monitor. Current limitation, under and over-voltage switch-off plus temperature monitoring are implemented as standard in all models.

A protective cover shields the unit against contamination and suitable for use in extreme environments. maxon’s flexible modular system has also been expanded, so that all flat motors can now be combined with spur and planetary gearheads.
www.maxonmotorusa.com