Ape: How do you think that we should analyze the idea of BEMF, and it's relation to OU? Any ideas? NickZ
Nick, hi There are several methods. The common Ruslan setup suggest a regular HV sinewave from the antenna wil be enough to creare OU. This is not emf. Dally used nanopulses to penetrate the inductor and or grenade. Stalker used a interupter to get " nano" pulses from the kacher. Do you remember Geo' s scopeshot of his kacher signals showing high dV/dt rising edges? Getting emf from a coil can be done by switching it fast. Ruslan could have lined its kacher up in such a way, not letting it resonate by pulsing a primary coil but switching the secondary to Vcc. Here is were you get the nice unipolair puls. In fact half a period from the coils resonance frequency.as the other half way flows trough the bodydiode of the Mosfet. When you ask how to analyse this I personally think we have to build a testcase were a single puls result can be stored, meaured. This together with scopeshots could point out if we are going the right direction. Altough I've done a lot testing in this area w/o results I believe in someway the emf from a coil could be stored in the grenade when this grenade acts as a cap... and releases it when goes back to inductive again. Itsu's nice resonance graph shows these relations. Ape
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