Blog: 2011

Description of Pulse Width Modulation

Description of Pulse Width Modulation blog post

Post date: 6 years 1 month ago
PWM (Pulse Width Modulation) refers to the concept of rapidly pulsing a digital signal on a wire. Along with many other uses, it can be used to simulate a varying static voltage. PWM is commonly used for driving motors, heaters, LEDs or lights in varying intensities or speeds. TERMINOLOGY Period...
Back-EMF Motion Feedback

Back-EMF Motion Feedback blog post

Post date: 6 years 5 months ago
INTRODUCTION Electromotive force (EMF) refers to the voltage generated by a spinning motor. Measuring this voltage in order to determine the rotational speed of a motor is commonly called Back-EMF since the voltage tends to "push-back" against the circuit driving current into a motor's windings....
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