On Wed, Feb 16, 2005 at 04:06:58PM -0800, Gregory K. Ruiz-Ade wrote: >On Wednesday 16 February 2005 12:46 pm, Wayne Jr wrote: >> >> Here is the homepage of the company that makes it. >> http://www.energysmart.com/ > >Ah, I thought that was what you were talking about. I've got three, with >one each on my refridgerator and chest freezer. We had the third one >driving a Patton fan that we haven't used for quite a while. > >They only work for AC motors, though, they'll likely fry any purely >electronic device. The theory is that they vary the current to the device >such that it draws only as much current as needed to run.
Are you sure about that? They advertise a powerstrip for computer use. >Anecdotally, it made the fridge and chest freezer much quieter. I can't >even tell when the freezer is running anymore. The web site doesn't really say what they do... I think I remember some marketing for similar devices years ago, which basically change AC to pulsed DC, making motors run better and light bulbs last longer (specially formed diodes are inserted into light bulb socket to complete the circuit). Maybe they add resistance until it causes the voltage to drop on the equipment side _and_ change AC to pulsed DC? Don't know what either of these would do to electronics. // George -- George Georgalis, systems architect, administrator Linux BSD IXOYE http://galis.org/george/ cell:646-331-2027 mailto:[EMAIL PROTECTED] -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
