Perhaps you’ve noticed articles or advertisements in trade publications touting the advantages of permanent magnet motors (PMMs.) PMMs use technology innovations to pursue….

Electronically commutated motors (ECMs) will play an important role in compliance with increasing motor efficiency requirements from the U.S. Department of Energy (DOE). But how do these motors differ from century-old direct current (DC) motor technology….

This series provides an evolutionary perspective on motors and increasing motor efficiency requirements. We begin with a brief look at motor history and the key developments in motor efficiency classifications over the last….