On Tue, Sep 18, 2012 at 5:56 AM, Michael Baker <mp...@clanbaker.org> wrote: > Time-Nutters-- > > OK-- So flicker would be objectionable running off a > rectified 110VAC line. My thinking was to find > a way around needing a current limiter that would > waste energy as heat.
Even if flicker were not a problem what happens if the AC line voltage goes up? How to prevent over driving the LEDS. Or a voltage spike on the AC mains. I think you ned some kind of line regulation. Andin a 100W system you will have heat. The LED's current draw depends on temperature so you'd need some load regulation too. Or another way around the need for regulation is to run the LEDS at reduced power so there is a large safety margin for heat and line voltage variation. But then you need more LEDs for the same amount of light. A constant current DC power supply is not that hard nor expensive but if LEDs are cheap enough just get 2X more of then and run them at 1/2 rated current. Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
