Re: 110V 60Hz / 220V 50Hz power supply

Well, yes; let me rephrase that then: the difference between 50Hz and 60Hz 
should not matter in practice to a linear power supply.

m

----- Original Message ----- 
From: "Rainer Buchty" <rainer@buchty.net>
To: <cbm-hackers@musoftware.de>
Sent: Wednesday, February 01, 2012 5:18 PM
Subject: Re: 110V 60Hz / 220V 50Hz power supply


> On Wed, 1 Feb 2012, MikeS wrote:
>
>> Frequency shouldn't matter to a power supply
>
> That's not entirely true. The higher the frequency the smaller the
> transformer can be. That's one reason why switching PSUs are much smaller
> than their linear counterparts.
>
> U_eff=sqrt(2)*pi*B*A*f*N shows the correlation.
>
> Rainer
>
>
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