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#1
08-08-2011, 06:21 AM
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0-10v and PWM dimming systems are totaly different. Basicly analog and digital. 0-10v dimming relies on the voltage stength where PWM dimming uses controled pulses to dim. Basicaly PWM the dimmer sends pulses to the driver flickers the led at different intervals. I don't believe it will work trying to use 0-10v type control at 0-5v.
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72 gal bowfromt mixed reef sps dominated, 25 gal mineral mud type sump/refugium Skimmerless 2x250 14000k phoenix hqi 2x96 pc actinic, 50x flow 
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#2
08-08-2011, 10:33 PM
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I have never tried it, but in theory it might work, if he had a 0-10v PWM and connected the output to a voltage divider, it should divide the voltage and the duty cycle should remain the same. since the width of the pulse determines the voltage where 10% = 1v and 100% = 10v with an amplitude of 10v then 10% = .5v and 100% = 5v if the amplitude is divided in half. of course load is a factor so some experimentation with resistor values would be required, i would start with 10k half watts and see what happens
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Crap happens, that's why they sell toilet paper in 48 roll packs!
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#3
08-09-2011, 04:56 AM
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Use a simple 555 ic. Plenty of schematics out their on the web. Doesn't get any simplier than this one.
http://www.instructables.com/id/Simp...lation-PWM-Wi/
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-=Bryan=-
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#4
08-10-2011, 12:26 AM
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http://www.robotroom.com/PWM.html
here is a link i just found, really simple and outputs 25ma. not sure how you could implement sunset/sunrise similation though
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Crap happens, that's why they sell toilet paper in 48 roll packs! Last edited by Cal_stir; 08-10-2011 at 12:30 AM.
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