[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: (forget it) Now Heated Locks

To: kirby.a.smith@lmco.com, quattro group <quattro@coimbra.ans.net>
Subject: Re: (forget it) Now Heated Locks
From: Huw Powell <human@nh.ultranet.com>
Date: Tue, 11 Nov 1997 00:57:41 -0500
Organization: HUMAN Speakers
References: <467AE060.1299@mailgw.sanders.lmco.com>
Sender: owner-quattro@coimbra.ans.net

>  Why doesn't something melt if one keeps holding the handle.  The following is
> speculation.
> I think that the control module has a mirror image circuit (probably scaled)
> connected to a thermistor, such that when the mirror lock temperature exceeds 32F
> (0C), the current drops or ceases.

Maybe they use a "PTC" (positive temperature coefficient) switch - looks like a tiny
disc capacitor, it's resistance rises sharply at a certain temperature.  Used in hot
glue guns, speaker protection (ugh) devices, etc.
--
Huw Powell
HUMAN Speakers

References:
- Re: Re: Re: (forget it) Now Heated Locks
  - From: kirby.a.smith@lmco.com

Prev by Author: Re: Deer-proofing an Audi
Next by Author: Re: A4 cat-back exhaust recommendation
Prev by thread: Re: Re: Re: (forget it) Now Heated Locks
Next by thread: 1988 Audi Quattro 90 idle problems
Index(es):
- Author
- Thread