why would a wire extension affect operation???

Archiver

Does anyone know why extending an automobile DC power wire (cigarette
lighter adapter specifically) would cause an AC/DC inverter to not work?
Can the length of a wire affect how much current flows through it? (I use a
basic stamp 2 in my application, and I figured this group hosts the wisest
of the wise...)


Here's a link to my application (Dashboard PC):
http://christopher.bergeron.com/

for those interested...

Thanks in advance for any info about this!
-CB




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Archiver

I would suggest that you make sure you have the correct polarity at
your inverter and that 12V is in fact present, if you extended the
cigarette lighter adapter wiring yourself by splicing into it. The
length of a piece of wire does have an impact on how much current can
flow through it. The longer the piece of wire is, the more resistance
it has, hence less current can flow. However you have to have ALOT of
wire for this to really come into play.

I'd look for more obvious causes...Polarity reversal, bad connection,
shorted wiring, blown fuse inside the cigarette lighter part, blown
fuse in the vehicles fuse panel, etc., epsecially if you made the
modifications yourself. Length of wire would be the last thing I look
at unless you just extended it from 8 feet to 800.


--- In basicstamps@y..., "Christopher Bergeron"
<christopher_bergeron@y...> wrote:
> Does anyone know why extending an automobile DC power wire
(cigarette
> lighter adapter specifically) would cause an AC/DC inverter to not
work?
> Can the length of a wire affect how much current flows through it?
(I use a
> basic stamp 2 in my application, and I figured this group hosts the
wisest
> of the wise...)
>
>
> Here's a link to my application (Dashboard PC):
> http://christopher.bergeron.com/
>
> for those interested...
>
> Thanks in advance for any info about this!
> -CB
>
>
>
>
> _________________________________________________________
> Do You Yahoo!?
> Get your free @yahoo.com address at http://mail.yahoo.com

Archiver

>
> Your problem is most likely the cigarette lighter adapter, they are
> probably the worst possible way of powering anything in a car. I
> would 1. keep the wires short 2. keep the wires big ,and 3. attach
> the wires directly to the battery (with fuses on both + and -). You
> can go to a shop that sells monster car stereo stuff and get
> everything you need.
>

Ditto: one more important note, make sure and fuse BOTH the positive and
negative wires going to the battery.

Dale Harwood [noparse][[/noparse] N4VFF ]

internet> dale@h...

ax.25> n4vff@n4vff.#cha.tn.usa.noam

#include <std_disclaimer.h>

Archiver

--- In basicstamps@y..., "Christopher Bergeron"
<christopher_bergeron@y...> wrote:
(cigarette lighter adapter specifically) would cause an AC/DC
inverter to not work?

Your problem is most likely the cigarette lighter adapter, they are
probably the worst possible way of powering anything in a car. I
would 1. keep the wires short 2. keep the wires big ,and 3. attach
the wires directly to the battery (with fuses on both + and -). You
can go to a shop that sells monster car stereo stuff and get
everything you need.