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Custom Heat Sink for H-Bridge

A project log for Water Bot

Robot Sprinkler

mary-parkerMary Parker 07/28/2017 at 11:560 Comments

As I mentioned in the previous post, the FET's on the H-Bridge got ridiculously hot after a very short amount of time. To rectify this, I constructed a heat sink out of angle aluminum and a lot of thermal paste. Since the heat sync spans all of the FET's I made sure to put rubber gaskets and insulation on the FET's themselves in order to prevent an electrical short.

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