DC Motor Controller Market Size and Forecasts (2021 - 2031), Global and Regional Share, Trends, and Growth Opportunity Analysis Report Coverage: By DC Motor Type (Permanent Magnet Brush DC Motors, Series Wound Brush DC Motors, Shunt Wound Brush DC Motors, Compound-Wound Brush DC Motors); Industry (Discrete Industry, Process Industry) , and Geography (North America, Europe, Asia Pacific, and South and Central America)