Date:         Fri, 20 Sep 2002 20:23:12 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Inverter advice needed
Comments: To: Greg Kriss <carat90@LYCOS.COM>
In-Reply-To:  <MIBGHLLEBCMMIAAA@mailcity.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 04:31 PM 9/20/2002, Greg Kriss wrote:
>far. Anyways want to add a 110VAC inverter for general use but have no
>idea what size or type to get.

Which suggests getting a small one until you know what your uses are.


>Sine or modified sine wave output?

True sine $$$ and only available in larger sizes, maybe not so efficient
but otherwise highly desirable.  Modified sine will put a buzz in many
audio gear (with inadequately filtered power supply), will maybe put
crawling bars on a CRT monitor, will often make small power supplies
hum/buzz, and may give less torque from motor-driven stuff because peak
voltages are a bit lower.   However it suffices for the bulk of uses and is
WAY cheaper.


>Load? 200 watt or 1KW or more?

Figure ten amps input for one watt output -- 200 watts consumption will
draw about 20 amps from the battery, a kilowatt will draw about 100 amps.

david


--
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"