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Old 07-02-2018, 12:53 AM
Art Freas Art Freas is offline
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PWM and Power Supply

I have a powder booth I have put together but can't get the fan right. I would like to use a motorcycle radiator fan to do this but want to adjust it. Looking to us a fan of this type.

Size: 12 Inch, Thickness: 2.5 Inch
10 Blades, 12 Volts, 6.6 AMP DRAW, 80W

To adjust the speed I need a PWM and power supply. Anyone have any recommendations as to where I would best be able to get advice and get the units themselves.

Thanks much.

Art
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Old 07-02-2018, 07:10 PM
Dave Bross Dave Bross is offline
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Google "electronic surplus" and you'll find a bunch of suppliers of used and salvaged goodies.

There are automotive and RV rheostats and similar things for 12v systems. Something like the dash light dimmer switch for cars comes to mind. I don't know if it is rated for that load.

surplus center and other general surplus and salvage dealers often have interesting things.
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Old 07-02-2018, 08:01 PM
Art Freas Art Freas is offline
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Standard rheostats won't work well with a motor, tends to burn them out. A PWM will give the right voltage in pulses so the motor lasts. Good steer on the surplus folks, will give that a try. Many thanks.
Art
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