Power supply protection

Technology
Power supply protection
BB-PowerSupply-0.jpg

SparkFun has a nice roundup of various power supply protection plans. It’s a great place to start learning about how to protect your prototypes from inadvertent power supply mistakes. I think most of us can recall frying at least one chip from switching polarities. Got a good story? Share it with the rest of us in the comments. Thanks!

When designing a board, power is always a concern. Not matter if the power supply is batteries or a wall wart, you have to consider how the user is going to attach the power supply. Given the opportunity, we have to assume that power will be hooked up wrong. This brings up the discussion of ‘reverse power protection’.

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