/diy/ - Do It Yourself

Anonymous Mon Nov 20 11:51:23 2017 No.1282017 [View]
File: 523 KB, 707x494, Screenshot - 11202017 - 11:47:32 AM.png [View same] [iqdb] [saucenao] [google]

>>1282011
>Maybe he was previously feeding it constant voltage?

Yes. The upper circuit is what I have, one of those cheap as dirt DC-DC step up converters that Amazon has for about a dollar.

>>1282013

I have a regulated 4.5 volt supply and was boosting to about 25 volts across a single string of LEDs at 12 to 14 mA.

it's a bit nippy in here, about 60 F so maybe the LEDs were warming up; they definitely do not feel warm.

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/diy/ - Do It Yourself

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