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Shop by category. Fan Diameter see all. Power Connection see all. Not specified. Voltage see all.
It only takes a minute to sign up. First of all, sorry for my lack of knowledge in the subject. This cabinet of course gets hot from all the electronics inside of it. The fan forces air in from the room and goes out through openings in the top of the cabinet. I'm using only red and black to give the fan full 12v power. The problem is since it's at max speed, it is way too loud. I have a simple toggle switch to turn it on and off. What I would like to do is replace the toggle switch with a knob to adjust the speed.
I don't know how to use the other two wires to control the speed. What kind of knob do I need to get, and how should I wire it? The minimum setting of the knob should feed the fan with its minimum required power to spin at the lowest speed possible, and the highest setting should spin it at full possible speed.
I don't have any problem with soldering a small circuit board together for this project, I just have no idea what schematic I need to put together. I've played with electronics and their components all my life but don't know nearly enough to even begin understanding how to accomplish this. It should be simple, right? Should I be using one or both of the additional wires for this, or should I use some method of adjusting the voltage?
From Nidec. This is a simple PWM controller directly from Nidec so I can guarantee it will work with your fan, though it's also compatible with other schematics, as long as the schematic works for a 12VDC 4-pin PWM computer fan. A 1k resistor, a k pot, two schottky diodes, aand a handful of capacitors. From Overclockers Forums. You'll note they are very similar circuits.
Despite my constant use of Overclockers.
It's just somewhere I've seen a great how-to for how to build your own PWM controller, and the schematic is completely done out as well. I'll try to permalink it here for you.Skip to main content.
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Nintendo Switch Console - Neon with improved battery. Shop by category. Fan Diameter see all. Power Connection see all. Not specified. Bearing Type see all.These include electric power and control systems, electric motors and generators, LV and MV drives and precise Power Supply and Power Quality components. Each product solution is tailored to client life cycle requirements and guarantees performance, reliability and safety. Encoders Certain industrial applications require very high levels of precision control.
DC axial fan
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I'm removing the plastic fan to get at the motor. The plastic casings have different designs, but the core seems to be the same. I remove the sticker and pop off this little plastic cover.
I'm expecting to see some sort of bolt or screw holding the pieces together, but instead there looks to be some sort of metal rod with a white o-ring. I'm assuming that's the sleeve bearing, but I have no idea how to remove the plastic fan; other then pry it off or dremel.
Any ideas? Best Answer 9 years ago. There is a little snap ring, underneath the plastic cover, underneath the sticker. Sometimes this snap ring is made of metal. Sometimes it's plastic. Pry the snap ring loose, and then it is possible to pull the rotor off. The shaft, the permanent magnet rotor, and the plastic fan blades are all one piece. A picture of this is attached.How to make a portable fan using a computer fan and a battery
Because the fan and rotor are all one piece, it is kind of tricky to just pull the "fan part" off and replace it with something else, like just a bare shaft, for the purpose of Basically the old plastic blades were cut off from the rotor, and new ones are glued on to it. Answer 9 years ago. Often times they're snap rings, but it doesn't look like it's the case for this one. Follow Asked by Vorenus in Circuits.
Tags: DC motor electronics fan mod. Jack A Lopez Best Answer 9 years ago. Reply Upvote.