From: "Bevan Weiss"
Subject: Re: Boosting output from 120V inverter
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
Organization: Orcon Internet Ltd
X-Cache: nntpcache 2.3.3 (see http://www.nntpcache.org/)
X-Original-Trace: 26 Oct 2002 19:03:28 +1300, news.orcon.net.nz
Date: Sat, 26 Oct 2002 19:03:30 +1300
NNTP-Posting-Date: Sat, 26 Oct 2002 19:03:30 NZDT
It's not that simple unfortuneately...
The transformer itself probably wont be rated that much above what the
entire inverter is rated at. So just replacing the MOSFET's wouldn't do the
trick, you'd have to replace the transformer as well, and the transformer is
almost the entire cost of an inverter, apart from design.
"DaveC" wrote in message
> 200W inverter needs to run a bit more power. I know how cheap these things
> are, but I get my kicks from using and/or modifying what I have and
> the experience of electronics theory/application.
> How should I go about matching up a higher-amperage MOSFET to replace the
> ones there? Same g-d and g-s voltages? Higher d current? Pin
> of course. What are the critical specs I should focus on when looking for
> The MOSFETS that switch the output are not heatsinked very well, and there
> room for a small cooling fan.
> Note that my return address is corrupted in an attempt to reduce spam. If
> choose to e-mail me, please correct my address as described below.
> Dave Carpenter
> Sound Logic
> Remove the numbers to reply via e-mail