So I got some 12v fans, with the idea that I would have a look at active cooling solutions. I also ordered a bunch of 12v dc drivers that I selected with the same logic I would choose a LED driver, now realizing that fans seem to work differently then leds.
I chose 12v drivers with the idea that I should stay under stated max A to be fine. Now I'm understanding that if current is too low, nothing happens, and if current is adequate or above, the fan will just pull what it wants...
Powering a fan
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- LED Wizard
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"Nothing is true, everything is permitted"
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- LED Wizard
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So the fans didnt budge with the 12v 220mA DC power source. I chose the powersource with the idea that it was about 180% of max for a fan, and I would use a splitter to share the power to two fans. Then I tried the power source with a single fan and it still didn't budge.
After that I connected it to a 9v battery and it worked. Then I connected it to a 7-22v 1900mA led driver and it worked again, but with super high power.
After that I connected it to a 9v battery and it worked. Then I connected it to a 7-22v 1900mA led driver and it worked again, but with super high power.
"Nothing is true, everything is permitted"
Be careful if you are exceeding the maximum voltage input for a fan, they can catch fire pretty easy, as it was working from a 9V battery this tells me you may be putting far too much voltage into it. The rated input is usually on a sticker on the fan
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- LED Wizard
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The fan is rated for 12v and around 120mA... I only hooked it to the led driver for a second, just enough to see it worked.
But am I understanding correctly that with a fan it's the voltage I need to watch out for, and ampers are only a problem if there is not enough of them?
"Nothing is true, everything is permitted"
Yes that's correct, if you give it too much voltage it's a big issue, regarding amps you can give it as much as you want and it will only draw what it needs. In about a month I will have a converter that will work inline with your LED driver upto 60V input and the output will be 200mA 12VDC.
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The fan drivers have stopped production, I will try to find another solution for you. Sorry about that, the company doesn't want to make them anymore as thier drivers have a fan auxiliary and they don't want the drivers used with other brands like meanwell.
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- LED-Curious
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Ok, it wasnt the Voltage Regulator, it was the 10A fuse. It blew but it wasnt visible. I measured, and it doesnt work high resistance. Off to buy a new one