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ledcomp's avatar
ledcomp
Explorer
May 17, 2015

LED Dimmer

I wanted to stabilize my LED lighting circuit voltage using a buck/boost converter. When the LED's are dimmed you can see alot of fluctuation from battery voltage change like when the water pump cycles. My concern is with the PWM LED dimmer being driven by the back/boost converter. I'm trying to not let the magic blue smoke out of my PWM dimmers.

If this will work, does anyone know of a 5 amp+ buck/boost that will work with a common ground?

Thanks
Dave
  • SCVJeff's avatar
    SCVJeff
    Explorer
    May 17, 2015
    THIS is the one I'm using for my current bedroom fixture project. My arrays are 9V, so I have this one both voltage and current limited and it'll run at full output down to .6v of the set point. It appears that the I/O is common ground, but in my case, unfortunately the downstream dimmer runs an isolated ground to the load :(

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