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Brians256 · 09-11-2002, 12:34 AM

I looked at this kit, and the circuit is the same (or nearly so) as a prototype I did. It should work just fine. Much cheaper than the kit I got a year ago!

If it is the same, it uses a 556 (two 555's in a chip) to send out a variable width PWM signal to a MOSFET which supplies the PWM 12VDC to the fan.

09-11-2002, 12:34 AM	#5
Brians256 Pro/Staff Join Date: Oct 2001 Location: Klamath Falls, OR Posts: 1,439	I looked at this kit, and the circuit is the same (or nearly so) as a prototype I did. It should work just fine. Much cheaper than the kit I got a year ago! If it is the same, it uses a 556 (two 555's in a chip) to send out a variable width PWM signal to a MOSFET which supplies the PWM 12VDC to the fan.