[Prev][Next][Index][Thread]

Re: Inductive Kick Effects



Hi all,
         The "newly discovered effect" has in fact been a part of 
electrical thingys harking back to Faraday's induction coil 
experiments. Time must be taken into account in the calculations
in case someone starts wondering what happens to 11J+ of stored 
energy in the ballast core.

    When the gap fires, transformer/ballast current should be 
approaching zero as the cap is storing most of the circuit energy at 
this time. When the gap fires, the amount of magnetic energy that 
gets stored in the ballast/transformer leakage L is going to depend 
on gap dwell (which is not all that long) according to current at the 
end of dwell: Ipk = Vpk*t/L.  Note that V is decreasing during dwell 
as the transformer comes down off its peak. That "I" then gets 
plugged into the energy equation. In fact the effect shouldn't be as 
severe as it might at first appear if this is taken into account.

?
Malcolm