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Registered Member #2591
Joined: Fri Jan 01 2010, 11:58AM
Location: netherlands
Posts: 76
hello guy's
I wan't to know how to measure the inductance of the Mazilli driver, so I can calculate the resonant cap for it, but the driver has one coil with a mid-point (5+5), do I have to measure the complete coil or only the first 5 windings.
some explanation how the circuit works would be wonderfull.
Registered Member #2591
Joined: Fri Jan 01 2010, 11:58AM
Location: netherlands
Posts: 76
the voltage of the Lc = pi*Vin, is the current trough the L also higher because of this, or is the current from my psu the same as in the tank circuit?
I wan´t to know this to calculate the awg size for my primary.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
The current in the LC is few to many times higher than the supply current. Also remeber that drawing an arc decreases inductance seen on the primary winding, and in turn increases frequency and current.
Registered Member #195
Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
I use 16 to 14 awg and I always use 4 to 6 turns. The cap that you choose is just as important like this
the reason is that it has low ESR, your basic snubber cap. When your primary becomes resonant the circulating current in your L and C increase. The current is determined by the R in L and C. The average flyback has a resonant frequency from 20-60 khz, generally the smaller the higher. The thing I do is have a selection of caps and change caps to find the resonance. if you want to calculate it you will have to measure L with out going through a lengthy calculation.
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Mazzilli driver inductance
