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ok design?




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From:  Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
Sent:  Friday, March 06, 1998 1:05 AM
To:  Tesla List
Subject:  Re: ok design?


> Last thing: for the current to get to 7.8A, winding resistance must 
> be less than 13/7.8 Ohms = 1.67 Ohms roughly. But if it approaches 
> this value, an even longer period would be required as an RL time 
> constant is also factored in. Then it is a matter of knowing L to 
> know how long V must be applied for the current to hit the required 
> value.
> 
> One can work through it in other ways too. If L is known, you can use
> E/cycle = W x t   where E = 0.5L x Ipk^2  and t = time per cycle
> 
> Malcolm
> 
> 

Auto coil L is around 5-10 mH.....