262andbrew
Well-Known Member
Should a 120 mm computer fan have fried a 500mA dc power converter?
OK, I admit it, I am an electrical hack. I can make a good splice and connect red to red, but the numbers escape me and I need a bit of guidance.
My application is for a keezer, but I think it could be applicable for the stir plate builds.
I had an old computer case fan and a switchable ac-dc converter in the junk drawer and wanted to create a bit of air flow in the keezer. The converter was rated with max 500mA, has a switch to change voltage. It worked at 12V, it worked at 9, 7.5, 6 and 4.5V. I settled on 6 and left it on full time (as debated in this thread: https://www.homebrewtalk.com/f51/electric-wiring-fans-keezer-130423/ ). It ran for a week without a problem, but eventually my dc converter (actually transformer) gave out.
I have no specs or numbers on the fan . So I know we are feeling around in the dark, but do you think that if I splice in a cell phone charger that is 5.2V and up to 1.0 Amp I will:
a) be happy forever
b) burn down the house
c) have it run for a week and finally burn out too
The fan could be the problem, I really don't know. Would you chance it on a decommissioned cell phone charger?
OK, I admit it, I am an electrical hack. I can make a good splice and connect red to red, but the numbers escape me and I need a bit of guidance.
My application is for a keezer, but I think it could be applicable for the stir plate builds.
I had an old computer case fan and a switchable ac-dc converter in the junk drawer and wanted to create a bit of air flow in the keezer. The converter was rated with max 500mA, has a switch to change voltage. It worked at 12V, it worked at 9, 7.5, 6 and 4.5V. I settled on 6 and left it on full time (as debated in this thread: https://www.homebrewtalk.com/f51/electric-wiring-fans-keezer-130423/ ). It ran for a week without a problem, but eventually my dc converter (actually transformer) gave out.
I have no specs or numbers on the fan . So I know we are feeling around in the dark, but do you think that if I splice in a cell phone charger that is 5.2V and up to 1.0 Amp I will:
a) be happy forever
b) burn down the house
c) have it run for a week and finally burn out too
The fan could be the problem, I really don't know. Would you chance it on a decommissioned cell phone charger?