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Altera_Forum's avatar
Altera_Forum
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12 years ago

motor speed variable using FPGA

Hi. How to design variable speed motor using FPGA. I want to design line follower robot in different surface application for example, on roughness(slow) or smooth floor(fast).
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

If you are only supposed to generate a pwm signal for open loop drive control, it's an easy task with fpga.

You basically need a counter+comparator and possibly some extra logic for setting the pwm level.

Whiile if you want a complete closed loop controller, your system must provide some sort of feedback signals

in order to adjust the pwm level in real-time.