Clik here to view.
Answer by Simon Fitch for Blowing up Arduinos with a MOSFET & Motor
C1 in your circuit will cause more problems than it solves. It's a good idea, but if switching or motor transients are being coupled to the gate, an electrolytic capacitor there is unlikely to help,...
View ArticleAnswer by Math Keeps Me Busy for Blowing up Arduinos with a MOSFET & Motor
Not sure why C1 is in the circuit, but it shouldn't be there. It causes Q1 to turn on and off very slowly. This will cause Q1 to heat up. If Q1 fails, it may fail in such a way that the drain and gate...
View ArticleAnswer by MOSFET for Blowing up Arduinos with a MOSFET & Motor
Eliminate C1. This is detrimental as a capacitor here doesn't allow the MOSFET to switch rapidly as it is designed - the MOSFET sweeps through its linear region during turn on and turn off creating...
View ArticleClik here to view.
Blowing up Arduinos with a MOSFET & Motor
Another "Arduino & MOSFET" question. I cannot figure this one out. I've blown through 4 Nanos in the past week. The circuit works fine for several motor cycles, then the uC just completely dies....
View ArticleAnswer by user350912 for Blowing up Arduinos with a MOSFET and motor
I'd add bypass capacitors (~0.1 μF) to the regulator input to ground and output to ground to allow fast switching transients a path to ground instead of through the regulator.
View ArticleAnswer by Kuba hasn't forgotten Monica for Blowing up Arduinos with a MOSFET...
The biggest problem is a lack of a ground plane or of a star ground, and lack of decoupling capacitors in sight for the motor power circuit.I'll edit this answer later with details, but generally...
View ArticleClik here to view.
Answer by Simon Fitch for Blowing up Arduinos with a MOSFET and motor
C1 in your circuit will cause more problems than it solves. It's a good idea, but if switching or motor transients are being coupled to the gate, an electrolytic capacitor there is unlikely to help,...
View ArticleAnswer by Math Keeps Me Busy for Blowing up Arduinos with a MOSFET and motor
Not sure why C1 is in the circuit, but it shouldn't be there. It causes Q1 to turn on and off very slowly. This will cause Q1 to heat up. If Q1 fails, it may fail in such a way that the drain and gate...
View ArticleAnswer by MOSFET for Blowing up Arduinos with a MOSFET and motor
Eliminate C1. This is detrimental as a capacitor here doesn't allow the MOSFET to switch rapidly as it is designed - the MOSFET sweeps through its linear region during turn on and turn off creating...
View ArticleClik here to view.
Blowing up Arduinos with a MOSFET and motor
Another "Arduino & MOSFET" question. I can't figure this one out. I've blown through 4 Nanos in the past week. The circuit works fine for several motor cycles, then the uC just completely dies.I've...
View ArticleAnswer by Jerome Demers for Blowing up Arduinos with a MOSFET and motor
Thanks for the update. I now want to see inside the motor to compare new brush vs old brush. Your conclusion seems logical, but the same as all the comments here. Brush motors generate noise from the...
View Article
