Good way of describing it!

----- Original Message -----
From: "Wouter van Ooijen" <wouter@VOTI.NL>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Saturday, November 29, 2003 8:03 AM
Subject: Re: [PIC]: Driving a speaker?


> > Yes it does. It's called a inductive kick-back and it doesn't
> > care if its an open-drain or
> > not. It will attempt to sent a high-current spike in the
> > other direction.
>
> Actually the coil (like any coil) tries to maintain the same *current*,
> which (depending on the resistance encountered) might force it to
> 'generate' a large voltage, which might cause death for an unfortuanate
> semiconductor that was trying to be a high resistance.
>
> Wouter van Ooijen
>
> -- -------------------------------------------
> Van Ooijen Technische Informatica: www.voti.nl
> consultancy, development, PICmicro products
>
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