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Electronics => Projects, Designs, and Technical Stuff => Topic started by: nikodean1 on July 20, 2016, 02:45:06 pm

Title: My First PWM Motor Controller
Post by: nikodean1 on July 20, 2016, 02:45:06 pm
Hi everyone. :)

I recently made my first motor controller. It is a PWM fan speed controller for DC fans up to 80 watts: You can see a demonstration of it here: https://www.youtube.com/watch?v=CQ6KvJm0SuU (https://www.youtube.com/watch?v=CQ6KvJm0SuU)

I used a Launchpad RM57L development kit to run the C code, which adjusts the PWM signal's duty cycle based on the analog to digital converter's reading. The fan speed will vary from 20% of the maximum to 100%, depending on the temperature.

(https://www.kompulsa.com/wordpress/wp-content/uploads/2016/07/TI-Hercules-RM57L-PWM-Fan-Controller-Top-Open.jpg)
Title: Re: My First PWM Motor Controller
Post by: moffy on July 21, 2016, 12:00:35 am
Nice. I must say that TI have done a great job supporting ther Launchpad series. I used the TM4C123g and everything worked as advertised right out of the box.
Title: Re: My First PWM Motor Controller
Post by: Circlotron on July 21, 2016, 02:05:50 am
Your board doesn't look like it is in a static safe environment.
Don't be surprised of it fails soon.
Title: Re: My First PWM Motor Controller
Post by: nikodean1 on December 13, 2016, 03:10:36 pm
Quote from: Circlotron on July 21, 2016, 02:05:50 am
Your board doesn't look like it is in a static safe environment.
Don't be surprised of it fails soon.

Ok, is there a container you would recommend?