Berdair MOSFET board
Posted by OutcastZeroOne
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Berdair MOSFET board April 11, 2023 09:46AM |
MOSFET boards are nothing new. What I never did find was a board that fit on the back of the 555 motor of the pump 
I have a small PWM signal generator to help figure out the best PWM frequency for the motors. Found my 24v likes 20hz, while the 12 prefers 30-40hz. Outside the ranges it would stumble or make horrible high pitched whines.
Video of testing the 12v Berdair pump
As for the boards themselfs I used Digikeys Redboard service. Boards where made by a local shop in California, which surprised me there was a place so close by. 10 day turnaround from ordering to in my hand and cheaper than JLC with the same settings. They didn’t drill the center hole but sent me 2 extra boards, so kind of a trade off
Edited 1 time(s). Last edit at 04/11/2023 09:49AM by OutcastZeroOne.
I have a small PWM signal generator to help figure out the best PWM frequency for the motors. Found my 24v likes 20hz, while the 12 prefers 30-40hz. Outside the ranges it would stumble or make horrible high pitched whines.
Video of testing the 12v Berdair pump
As for the boards themselfs I used Digikeys Redboard service. Boards where made by a local shop in California, which surprised me there was a place so close by. 10 day turnaround from ordering to in my hand and cheaper than JLC with the same settings. They didn’t drill the center hole but sent me 2 extra boards, so kind of a trade off
Edited 1 time(s). Last edit at 04/11/2023 09:49AM by OutcastZeroOne.
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