[Stoves] Variable Speed Stove Fan II

[William Carr]

On Nov 29, 2006, at 12:46 PM, Tom Miles wrote:

> Kyle's comment reminded me of a conversation between Charlie  
> Sellers and
> Paul Anderson at Stoves Camp this summer. Charlie was describing an
> electronic  "chopper circuit" to adjust the speed of a DC fan. Has  
> anyone
> built one? Can anyone provide the circuit, list of components (and  
> sources)
> or a step by step how-to (with pictures) for building one? Or is  
> there an
> internet source?


Sorry, I didn't mention that there's a better explanation on the next  
page:

http://www.solorb.com/elect/solarcirc/pwm1/index.html