Re: magnetics design -- 60mJ energy impedance matching

On Sun, 17 May 2009 03:40:27 GMT, Jon Kirwan
<jonk@xxxxxxxxxxxxxxxxxxx> wrote:

<snip>

Yeah. Something like:

: R2
: ,--------~~~~~~~--/\/\--, ,-------,
: | 20 | | |
: | | | |
: --- C1 )||( \
: --- 1.5u L1 )||( L2 / R1
: | 150m )||( 240u \ .67
: | )||( /
: | / | | |
: | / | | |
: '--o o-~~~~~~~--------' '-------'
:
: 25:1

With 300V sitting on C1 to start. The squiggle characters represent
the 100' of wire length. R2 represents that resistance -- 20 ohms.
The 25:1 is what I guess is about right for critically-damped dumping
of energy. R1 is the squib, itself.

Problem is the core design for the transformer represented by L1/L2.
The rest of the specs and some reasoning for values are in the main
post.

I come up with HUGE volume for the core. I don't like that.

Thanks,
Jon

Oh... signal pulse transfer.
This is not quick for me to figure out.

Run a simulation?

I'd begin with figuring out when/if enough energy is transferred
before the core saturates.
( Bsat = UoUrNI/Le )


D from BC
myrealaddress(at)comic(dot)com
BC, Canada
Posted to usenet sci.electronics.design
.

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