Re: Saturable reactors?

• To: tesla-at-pupman-dot-com
• Subject: Re: Saturable reactors?
• From: "R M Craven" <craven-at-globalnet.co.uk> (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Thu, 10 Dec 1998 23:21:18 -0700
• Approved: twf-at-verinet-dot-com

>Original Poster: Scott Stephens <Scott2-at-mediaone-dot-net>


<SNIP>

>> Does anyone have a clue if this core material would have the required
>>"square" B-H curve required to make a decent mag amplifier?


The fact that you are saturating the core will result in a massively
non-linear waveform. As a result, the charging current waveform will be an
inefficient charging source. Your mains input will also become very dirty.

Having said that, a sensitive mag. amp can easily be built using a normal 50
Hz (60 Hz) E-I laminated core. The control winding can be a dc source off a
12V battery or similar, flowing in a few dozen turns. The existing mains
winding can be deployed: the 12V current can give you 90-odd per cent
current control.

Richard Craven, Malvern, England

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