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12/07/2017, 11:01 AM | #1 |
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Join Date: Nov 2002
Location: Swartz Creek
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Fan, Bluefish Mini, LDD 48V?
Looking for a way to get from 48v to 12v and control a fan with a bluefish mini. I've read of O2 Surplus parts, but he hasn't been active for a while, so looking for other options.
I have LDD's, and a driver from BlueAcro, along with a 48v Meanwell power supply. Thanks for any options you know of. -Mike
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Just say no to CRABS! Current Tank Info: 85 Gallon mixed Reef. Halide/LED combo lighting. |
12/07/2017, 11:05 AM | #2 |
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Location: North Carolina
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Plenty of DC-DC converters out there..
Or just get another 12V supply for the fan itself... Or get a 48VDC fan..
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12/07/2017, 11:13 AM | #3 |
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Location: Swartz Creek
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Thanks, trying to avoid another outlet if possible. I bought a DC to DC converter from Fleabay a while back, it is no longer working. Was hoping for something similar to my LDD board with a step down built in.
Didn't know there was a 48v fan option, guess I better get shopping...
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Just say no to CRABS! Current Tank Info: 85 Gallon mixed Reef. Halide/LED combo lighting. |
12/07/2017, 11:16 AM | #4 |
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12/07/2017, 11:26 AM | #5 |
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Thanks! That is what I was looking for, I just didn't get to the right LED shop.
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Just say no to CRABS! Current Tank Info: 85 Gallon mixed Reef. Halide/LED combo lighting. |
12/18/2017, 02:03 PM | #6 |
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Join Date: Jan 2011
Location: Milwaukee, WI
Posts: 9
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Controlling Fan?
I actually just bought that board myself for this exact same setup. Curious if anyone has a way to put the fans on a timer? As of now, they run constantly...
I was hoping to run a relay off the bluefish channel, but the pwm only puts out 4ma which isn't enough to any relay I've found. Is there a way to add a timer function to this?? |
12/18/2017, 03:30 PM | #7 |
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Location: Swartz Creek
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Bought that board, made a dumb mistake, plugged my Mini in to 48v. The smoke came out of the mini, and is fried. New one on the way...
As for controlling the fan, I didn’t see a way to do that with this setup, it’s just on at 100% as long as power is on.
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Just say no to CRABS! Current Tank Info: 85 Gallon mixed Reef. Halide/LED combo lighting. |
12/18/2017, 04:09 PM | #8 |
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wiring in a thermal resistor shouldn't be much of a problem..Will get you a variable speed fan (by voltage drop)
Details above my paygrade.. Probably easier ways.. https://electronics.stackexchange.co...controlled-fan More info: http://projectschematic.blogspot.com...and-tl082.html simple snap switches (like on a furnace) will at least get you on/off Should be some Chinese parts out there .. would need 4 wire computer fans.. https://www.ebay.com/itm/12V-PC-CPU-...4383.l4275.c10 Last edited by oreo57; 12/18/2017 at 05:11 PM. |
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