A really compact buck converter with constant current control and voltage and current digital LED displays. It works well, but be careful when shorting the output terminals!
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Well the design does not say "to short the output to set CC", so its not a design issue because some YT'er tells you to short the output. These modules are now built with xl4015 and have OSC protection.
Can you please tell me what is the wattage of the led you used?
Hi there how to hive power to this?
percebi isso quando fiz um teste com 5 amaperes
What's the dcto DC jCk adapter caled, was looking for it the ohe dy but could not figure out the name. Looks like it works well for testing
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Did any one ever figured out how to use the serial interface on it. I would like to know if its worth to hook it up to a micro controller? Let me know who knows
Cool video, thanks Julian. On the bug, to be fair though, the datasheet/specs do say "minimum voltage is 0.8v". Doesn't say watch out though if you don't obey this you will burn the bugger up!….lol! Would have been better if they had. Thanks! I am going to pick one up, and at $3.95 i think a great value.
I want to know if this works for me.
i need a 5v 0.5a converter at the input and 5v 2a at the output. If not, do you have any idea how I can do it?
I not want look stupid. This is the only info I found to this step down module. I ordered one in ebay and wanted to use it with a 19V 5A Laptop charger.. I want to use it for powering a electrolysis process and need to step down to 12V 2A ..
So I Connected the laptop charger to the module and switched on the power.. the module was showing 19V all fine so far.. but Amps was showing a 0.000A.. I also was not able to step down or up any of the value through the potentiometers.
I doing some wrong? It is broken? I just connected the laptop charger, was it to early and I first must connect something to the output to get correct values and being able to adjust them??
Thanks for any help
Kindest
Alex
Thanks for your very informative videos, it would be GREAT if you would go back over your old videos and update the description with an eBay link to the products you are showing.
To overcome the bug, you could short the output using 2 power diodes in series. Maybe leave them in permanently if you don't mind the voltage drop and power loss.