I have assembled two PWM/Servo shields (1411). One of them works just fine. On the other, the reverse polarity protection MOSFET gets really hot even without having an Arduino or servos attached - just a 5V supply. When I plugged in the supply, it took a few second and I started noticing the hot chip smell! The light for the power supply (green LED) is on and the polarity is correct. I checked the soldering and don't see anything concerning. Any ideas?
Thanks, Martin
Servo shield reverse polarity protection overheating
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- physguy
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- dastels
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Re: Servo shield reverse polarity protection overheating
Please email [email protected] with a link to this thread, your order number, and request the replacement of one PWM/Servo shields (pid 1411).
Dave
Dave
- dastels
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Re: Servo shield reverse polarity protection overheating
Can you provide clear closeups of both sides of the board around the FET? It could help figure out what the problem is.
Dave
Dave
- physguy
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Re: Servo shield reverse polarity protection overheating
Thanks Dave. Here are the pics:
- adafruit2
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Re: Servo shield reverse polarity protection overheating
what exactly was the power supply?
- physguy
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Re: Servo shield reverse polarity protection overheating
It was a 5V= 3A 15W supply.
Please be positive and constructive with your questions and comments.