Portescap in Motion

Chris Schaefer

Recent Posts

Driving DC Brushed Motors

Posted by Chris Schaefer   Sep 04, 2020   0 Comments

Driving DC Brushed Motors

To control a DC motor, a variable, and controlled power supply is needed. There are three types of methods that can be used:         

    • Voltage-controlled linear supply
    • Current linear supply
    •  PWM (Pulse Width Modulation)
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Why An Encoder?

Posted by Chris Schaefer   Jun 16, 2020   1 Comments

Encoders provide feedback for accurate control of speed and positioning. The rotor angular position is given through two square waves 90 degrees shifted and an optional index pulse occurring once a revolution. There are multiple technologies to get these results.

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