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Author Topic: Can someone explain me how the Tinkerkit Mosfet Module T010020 works?  (Read 758 times)
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Hi all,
I drew the circuit of the whole module on paper including the opamps, the diode and the mosfet but I don't really get it. It seems to me that M- is on the drain of the (assumigly) NMOSfet. V++ and M+ are connected. So it looks like between M+ and M- is only the diode. How does that work?

Edit: I simply want to short-circuit something with it, is that possible?
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It would help immensely if you provide a link or post the schematic you have drawn.
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Here how I think it is (DO = Digital Out):



Still not sure what the diode does there, it could be left out I guess? Shouldn't short-circuiting be possible between GND and M-?

Also, shouldn't there be an official schematic of the module since all arduino stuff is open source?
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The diode is to protect the circuit from the reverse voltage that a motor produces when power is removed and the magnetic field collapses.

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since all arduino stuff is open source?
No all the arduino stuff is not open source. The arduino itself is, but third party stuff is not necessarily open source.
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