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Reply to "LED Headlights for a Dummy Diesel - Odd Behavior"

It does make a difference, the control of the triacs in the older board design was such that they triggered on any quadrant, hence the polarity in command mode would change at random.  They should actually work in conventional mode as they pass full-wave power.

The bridge would be after the .01uf cap (or your resistor) and before the LED and dropping resistor.

Last edited by gunrunnerjohn

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