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/diy/ - Do It Yourself

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>> No.1593823 [View]
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1593823

>>1593820
>8 LEDs
x 3.7V < 36V. you can use a stock buck converter for this as long as it accepts more than 36V on the input. Pic related is for a boost converter but the principle is exactly the same for the buck

>> No.1566928 [View]
File: 955 KB, 2001x1685, 1541871846345.jpg [View same] [iqdb] [saucenao] [google]
1566928

>>1566923
stop posting

>> No.1559031 [View]
File: 955 KB, 2001x1685, 1544595055849.jpg [View same] [iqdb] [saucenao] [google]
1559031

>>1559026
attempting to use boost modules to reduce voltage will not end well. use a buck module instead if your Vin is > than your Vcap
fortunately, the modification detailed in Pic related works just about the same way on either boost or buck module

>> No.1437547 [View]
File: 897 KB, 2001x1685, 1521892835939.jpg [View same] [iqdb] [saucenao] [google]
1437547

>>1437520
I've seen a few switching regs with 600mV Vrefs, and a few designed specifically for constant-current LED driving with <250mV Vref

>>1437524
I have no idea what all's going on there but I am diamonds

>>1437532
Pic related shows a boost converter mod, an analogous mod can be done on a buck converter

>> No.1378029 [View]
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1378029

did you buy too big a bag of those XL6009 modules and can't find anything you want to boost with them? how about LEDs?

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