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Subject: Re: Step Down POwer Transformer
Date: Thu, 5 Dec 2002 13:03:42 +0000 (UTC)
NNTP-Posting-Date: Thu, 5 Dec 2002 13:03:42 +0000 (UTC)
User-Agent: tin/1.5.14-20020926 ("Soil") (UNIX) (Linux/2.4.19 (i686))
fred bartoli wrote:
> a ?crit dans le message :
>> Joseph Goldburg wrote:
>> > Hi All,
>> > If I have a transformer 240VAC input 30v AC output at 500mA max.
>> > And I use this transformer with 120vAC input which should give 15v at
>> > 1amp. Right ?
>> > What other effects should I look out for?
>> The core will saturate at the same winding current, so you won't get
>> more than 500ma out.
> In a *transformer*, core saturation depends on voltage not on current (at
> least at the first order).
I have no idea what I was thinking...
I blame aliens.
> Using a 240V (50Hz) transformer on 120V (60Hz) will give you plenty of
> margin for core saturation.
> But, as you said, the current spec will not change, of course.
http://inquisitor.i.am/ | mailto:firstname.lastname@example.org | Ian Stirling.
If you've been pounding nails with your forehead for years, it may feel strange
the first time somebody hands you a hammer.
But that doesn't mean that you should strap the hammer to a headband just to
give your skull that old familiar jolt. -- Wayne Throop, during the `TCL Wars'
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