Testing A Common (And Cheap!) MOSFET Board

Taking a look at a mosfet board, typically used to power the heated bed on a 3d printer. In theory, this is a very nice mosfet but mounted on this board with a full-bridge rectifier on the control input, and a optocoupler protecting the gate connection - this module is a steal!

Get yours here:

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https://www.banggood.com/custlink/DG3d4TWU16

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