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Building Transformer & flux density
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From: D.C. Cox [SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Tuesday, June 16, 1998 6:49 PM
To: Tesla List
Subject: Re: Building Transformer & flux density
to: Ed
With this data as a known for an application, what is the equation for
voltage??
DR.RESONANCE-at-next-wave-dot-net
> From: Ed Phillips [SMTP:evp-at-pacbell-dot-net]
> Sent: Monday, June 15, 1998 7:00 PM
> To: Tesla List
> Subject: Re: Building Transformer & flux density
>
> All:
>
> The following expression gives the peak flux density in GAUSS
> for a magnetic circuit:
>
> Bmax = 10^8 x Epeak / (4.44 x A x N x f)
>
> where:
>
> Bmax is in GAUSS (1 TESLA = 10,000 GAUSS)
> Epeak is the peak value (1.414 x RMS) of a sinusoidal wave
> A is the core area in square centimeters
> N is the number of turns
> f is the frequency in cps (Hz for you SI fans!)
>
> If the exciting waveform is a square wave, as in switching converters,
> the 4.44 is replaced with 4.
>
> Ed
>