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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
HI.
for a sample i tested HV9910 in two circuit:
1: i tested HV9910 in 18VDC input for one led 1W, and that work Fine.
2: i tested HV9910 in 195V dc rectified for one LED 1W, but when i turn on circuit LED was light up a moment and then turn off forever ;) (crashed)
all component same as ideal...
hi and thanks for reply
i have 24 LEDs that need 77V DC.
my self is a RFC, i will try it with other inductor tomorrow, and write result.
again thanks for your help.
cya ;)
hi
I want to design a constant current led driver with this detail by HV9910:
input voltage: 200-240 V AC ___50Hz
output voltage: 54-108 V DC ___300mA
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I designed sample circuit like the HV9910 datasheet and i Get assistance of HV9910 software,
this...
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