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101 display basics
Modifying 120vac LED string lights to run on 10 volts AC or DC
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[QUOTE="aussteve, post: 80729, member: 25500"] I have some LED light strings (Walmart brand) that have 60 LEDs (3 strings of 20 each) which are controlled by a 16 function MFC. They are designed to run off of household 120vac. I would like to run them off of a 8-20vac input or e a 5v -12v DC input instead of the 120vac the circuit is designed for. Here are some pictures of the controller circuit board Frontside [url=http://s86.photobucket.com/user/aussteve/media/IMG_20160829_160159715-a-25-60_zpsmgoc4ehj.png.html?sort=3&o=0]http://s86.photobucket.com/user/aussteve/media/IMG_20160829_160159715-a-25-60_zpsmgoc4ehj.png.html?sort=3&o=0[/url] Backside [url=http://s86.photobucket.com/user/aussteve/media/IMG_20160829_160436592-a-25-60_zpsxu55sths.png.html?sort=3&o=1]http://s86.photobucket.com/user/aussteve/media/IMG_20160829_160436592-a-25-60_zpsxu55sths.png.html?sort=3&o=1[/url] Schematic [url=http://s86.photobucket.com/user/aussteve/media/IMG_20160829_162409823_zps4ygf0wfo.jpg.html?sort=3&o=2]http://s86.photobucket.com/user/aussteve/media/IMG_20160829_162409823_zps4ygf0wfo.jpg.html?sort=3&o=2[/url] Any ideas on what I can modify in the circuit to lower the input voltage and still get the circuit to function as it does on the 120vac source? [/QUOTE]
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Modifying 120vac LED string lights to run on 10 volts AC or DC
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