Tuesday, July 29, 2008

Fans

Why are fan switches usually configured

LOW - MED - HIGH - OFF

and not the more logical

OFF - LOW - MED - HIGH

I'm just wondering. It seems silly to have to go through higher speeds to turn it off.

1 comment:

DHM said...

Because with the very cheap motors & speed control circuits they often use, there isn't enough starting torque at the lower speed settings.

So off->high to get it spinning, then adjust the speed lower.