electrickery question

[Kev.WParticipant @kev-w]

Have aquired a couple of motors for a tug I'm building, now I know what the capacitors are for, but can someone tell me what the diode is for?

Thanks in advance.

[Kev.WParticipant @kev-w]

[harry smith 1Participant @harrysmith1]

Hi Kip

The diode lets current go one way and blocks it the other way.

Remove it as you will require the motor to go in forward and reverse for your tug.

Hope this is a simple answer with out all the expert words.

Harry

[Kev.WParticipant @kev-w]

Thank you Harry, that has saved me the head scratching.

[Malcolm FraryParticipant @malcolmfrary95515]

A motor arranged like that is for somewhere it only needs to turn in one direction. The diode shorts out the reverse back EMF when the motor is unpowered but hasn't stopped spinning, or the magnetic field that was generated by the motor windings is still collapsing. With PWM ESCs, this can be a lot of the time. Bi-directional ESCs have enough electronickery inside them to by-pass these unwanted spikes in voltage into the power wires without them damaging anything.

As said above, if it is going to spin both ways,remove the diode to stop it presenting a dead short in one direction.

[Kev.WParticipant @kev-w]

I shall definitely be removing the diode, as these are going to be the main drive motors for my tug.

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