You don't need diodes for an EM application.
(Topic ID: 123070)
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Quoted from wayout440:The diodes are used to save the bridge from damage when the coils magnetic field collapses, so I absolutely recommend them ...sure the game is an EM, but you just added a solid state component.
I thought the diodes were added to protect the driver board and MPU board from back EMF damage in solid state games. I don't think EMs with DC have diodes on the coils, do they?
OK, but do EMs using DC have diodes on the coils? I'm not sure, but I don't recall seeing them on the DC EMs I've encountered. Maybe there's a single diode installed at the bridge rectifier which serves the same purpose?
Quoted from DirtFlipper:Golden Arrow doesn't use any (it's not DC). Hit the Deck does (seven of them, for example).
Didn't know "Golden Arrow" wasn't DC. I thought they used DC exclusively after the first one (which was?...). I think Williams was using DC in their EMs all the way back to "Granada" and "Spanish Eyes" iirc.
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