Xantrex versus Sunny Boy [RE-wrenches]

[Jeff Clearwater]

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Hey Graham,

Yes, that's why in the EV industry the MosFet controllers fry quite a 
bit whereas the IGBTs seem to hold up - lot's of surges and back emfs 
in an electric vehicle - quick power changes .  And IGBTs are more 
efficient but it's the reliability that's key.


>I thought "IGBT" was an acronym for Isolated Gate Bipolar Transformer
>and FET is for Field Effect Transistor?
>
>I am also under the impression that the IGB-Transformer is much better
>at handling electrical surges than FET's, which helps make Sunny Boy
>inverters less susceptible to service calls and replacements. Is it true
>that FET's are more efficient at low load as opposed to IGBT's which are
>more efficient near rated power? Which could one reason why SB's are the
>most efficient grid-tied inverters.
>
>Graham
>
>
>
>
>-----Original Message-----
>From: john at gosolar.co.nz [mailto:john at gosolar.co.nz]
>Sent: Wednesday, July 30, 2003 11:36 PM
>To: RE-wrenches at topica.com
>Subject: Re: Xantrex versus Sunny Boy [RE-wrenches]
>
>
>It stands for "integrated gate bipolar transistor' - basically the
>fore-runner before MOSFET technology.  Once MOSFET's hit the scene, it
>pretty well took over most, if not all, applications.     And no
>question is
>a dumb question.
>
>                                         cheers,                John V
>
>------------------------------------------------------------------------
>------
>
>"Todd Cory, Mt. Shasta Energy Services" wrote:
>
>>  Maybe this is a dumb question but what is "IGBT technology"?
>>
>>  Todd
>>
>>  > The IGBT technology and electronics used  has very high losses at
>>  > less than full load.
>>
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-- 
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village
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gosolar at villagepower.com

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