"Short Wave Sportfishing" wrote in message
...
On Thu, 29 Nov 2007 15:14:38 -0500, "Eisboch"
wrote:
wrote in message
. ..
On Thu, 29 Nov 2007 20:12:22 GMT, Short Wave Sportfishing
wrote:
On Thu, 29 Nov 2007 13:12:52 -0500, wrote:
Another big breakthrough in electric motor efficiency is PWM, or
"pulse width modulation" used for controlling the speed
Sorry - I didn't see your answer until it was too late.
Thanks for the backup! LOL
Is it used in both AC induction motors as well as DC permanent magnet
motors?
Well, yes - with a qualification.
My knowledge of it comes from communications technology and what I
read with respect to my new trolling motor.
But I believe it is used in both.
I could be wrong.
I often am.
Are? :)
This is good stuff. (the answer is "yes"). Everyday I feel like technology
is leaving me in the dust, especially since I stopped working and trying to
keep current.
Turns out it's also responsible for the higher quality of SACD recordings.
Eisboch