[simpits-tech] AC dimmers and transformers

Matt Bailey dabigboy at cox.net
Mon Oct 27 18:23:33 PDT 2014


On Mon, 27 Oct 2014 06:22:03 -0700 (PDT)
geneb <geneb at deltasoft.com> wrote:

> On Mon, 27 Oct 2014, Matt Bailey wrote:
> 
> > Question: What sort of dimmer device is typically used in old
> > business jets? Just a standard triac? I'm trying to figure out
> > exactly what is in my Sabreliner.
> >
> > Second question: how tolerant are typical aircraft AC transformers
> > and power regulators to variations in frequency? For instance, I
> > have 115v/400hz coming off my inverter, but it breaks down to 5v AC
> > for lighting (and 26v AC for other stuff). I'm wondering how
> > critical it is to maintain the 400hz frequency.
> 
> Matt, typically variable transformers are used for dimming - at least 
> that's what I've found.  If you're going to use the original variable 
> transformers, you'll need to feed them 400Hz.
> 
> g.
> 
> 

That's what I was afraid of. Alright, time to break out some Arduinos
and transistors. :)

-- 
Matt Bailey

Keeping It Real:
Sabreliner 60 Flight Simulator
Serial # 306-61 - N1JX
http://sabrelinersim.com


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