>I'm not that good in electronics, so i just ask a simple question here.
>I have made a device to operate glow-plugs of model-airplanes.
>Basically, it is just PWM-generation.
>Well, the problem is, that i cant make the PIC "see" if the glow-plug is
>actually connected.
>It seems to be the old "current-sensing" problem, but i dont want to put
>any extra components into this.

Louis,

If you get the right design, you can actually see how hot the plug is and
regulate the temperature.  I know of guys who have done this.  Much more
reliable than basing the output voltage on the throttle position (you know,
turn on glow plug at 20% throttle, etc.)

Andy

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Andy Kunz               Life is what we do to prepare for Eternity
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andy@rc-hydros.com      http://www.rc-hydros.com     - Race Boats
andy@montanadesign.com  http://www.montanadesign.com - Electronics
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