How electronic speed controller control the speed of DC motor by vary the voltage or current? - Quora
Control circuit of DC motor drive with current and speed controllers... | Download Scientific Diagram
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DC Motor Speed Controller,775 High Power Waterproof Adjustable Switch PWM,photocoupler,Conversion of Current and Voltage 12V 24V 48V,for DC Speed regulating Motor : Amazon.ca: Tools & Home Improvement
![Figure 3 from Disturbance observer based current controller for a brushed DC motor | Semantic Scholar Figure 3 from Disturbance observer based current controller for a brushed DC motor | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/e11c1e24a336bbd775f4dea637fd0fdf8ee70f29/2-Figure3-1.png)