Re: [PSUBS-MAILIST] Electric engine control

[MarkR1970@aol.com]

In a message dated 3/21/2002 8:45:51 PM Central Standard Time, 
psub_only_temporary@hotmail.com writes:

<< The only question I have is this, is there any damage or undue stress 
caused to the electric motor to this constant on-off switching?  I'm not a 
big fan of technology, so thank you John for your simple explanation.
  >>

Actually PWM controllers are considerably easier on electric motors than 
reostats. Reostats reduce the voltage and cause considerable heat build up at 
low speeds and powers. Motors that are duty cycle controlled don't have this 
problem, which is why almost everything electrical has switched to this type 
of controller.

Mark