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[TCML] Q



Hi Gary,

I've been looking at your coil specs a tonight. I don't know if you have equated it but the transfer rate is really fast at 1.7us! Although this little coil is similar physically to the norm, that Mhz range really increases the transfer rate significantly. I wonder how the coil would work under a more typical transfer rate say in 10us or so?

The only way you can alter that is to reduce coupling. I'm kind of curious if the high frequency and transfer rate is an area we are overlooking with these small coils? We always seem to build them physically the same (scaled down), but we are not accounting for the frequency and di/dt which is associated with it.

In your case, due to the 38 awg wire size, there will be some large AC losses. Even though transfer rate is quick, the Q is only about 144 on this coil. This is what I was trying to explain about high frequency coils with normal turn ratios.

I kind of doubt a reduced coupling would do better due to the Q and secondary losses.

Take care,
Bart


--- "Lau, Gary" wrote: Hello All, I have finally gotten around to documenting my Bug Zapper Transformer (BZT) powered coil on my web site. For those interested, please see http://www.laushaus.com/tesla/bzt_coil.htm Regards, Gary Lau MA, USA
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