[TCML] Primary LC efficiency

["Chris Swinson" <list@xxxxxxxxxxxxxxxxxxxxxxxxx>]

Hi all,

I was wondering if there is any advantage in an LC circuit to gain better 
efficiency by either using more C or more L.

As a rough idea, maybe 10uH 10nF, or 20nF 5uH, or 5nF 20uH type of 
arrangement.

Going by capacitance is normally the evil, a higher L figure would give a 
higher Q ?

The problem with higher inductance is higher resistance which lowers Q also.

> From one of my number crunching sessions, resistance goes up with 
inductance. It seemed pointless going for higher inductance as the extra 
resistance of the cable would counteract the gains in inductance.  However 
if you can increase the inductance without increasing the resistance then it 
would seem a good way to go.

Then comes the LR vs C of the primary, C seems the evil so a higher 
inductance would be better. However if the wire dia is kept the same, then 
resistance wise, going for a higher L could be bad.

So overall, there does not seem to be any real way to improve primary 
efficiency ?

Cheers,
Chris

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