Re: brushless AC speed control?
From: Julie (julie_at_nospam.com)
Date: 07/10/04
- Next message: Mike Fields: "Re: Synchronizing camcorder with telemetry"
- Previous message: Jim Yanik: "Re: For All the Michael Moore Fans"
- In reply to: Robert Morein: "brushless AC speed control?"
- Next in thread: Robert Morein: "Re: brushless AC speed control?"
- Reply: Robert Morein: "Re: brushless AC speed control?"
- Messages sorted by: [ date ] [ thread ]
Date: Fri, 09 Jul 2004 17:55:16 -0700
Robert Morein wrote:
>
> I have a need for an extremely low speed fan to noiselessly cool a hifi
> rack.
>
> A typical house fan is powered by a four pole AC induction motor.
>
> I considered using a power tool speed control, but these controllers are
> designed to work with brush-type motors.
>
> I am guessing that by using such a controller to reduce the speed of a
> brushless AC motor, it would overheat if the speed of the motor was very
> much reduced.
>
> Am I correct? Suggestions for an alternative very-slow-speed fan?
Have you looked at Peltier solutions? Or do you need to move air?
If you need to move air, brushless DC muffin fans (some are specifically built
to be low-noise) may be a solution. You can slow them down as much as needed
by reducing the voltage.
- Next message: Mike Fields: "Re: Synchronizing camcorder with telemetry"
- Previous message: Jim Yanik: "Re: For All the Michael Moore Fans"
- In reply to: Robert Morein: "brushless AC speed control?"
- Next in thread: Robert Morein: "Re: brushless AC speed control?"
- Reply: Robert Morein: "Re: brushless AC speed control?"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
