Resonance
Hi everyone.
I've been following this thread for the past 2 years, but haven't been doing
much posting.
Just thought I'd add a few finer points on resonance.
1. To achieve max. voltage in a resonant circuit, try to use natural coil
resonance or as little capacitance as possible. Zilano mentioned this in one of her posts.
2.People have a hard time discerning the difference between series & parallel
circuits.
If L/C is in parallel across the power source then you have a parallel resonant circuit. Lets call this coil L1. Now if we couple another coil (L2) around L1 & parallel it with a cap.(c2) , would this L2/C2 circuit be parallel also?
Nope, it would be a series resonant circuit, because it's source voltage is INDUCED from the L1 coil. So this induced voltage is in series with the coil/capacitor.
Now the impedance across a series resonant circuit is close to zero but the voltage across EITHER the coil or cap.(not both) can be extremely high & limited only by circuit 'Q' thus giving us a nice gain in voltage.
Another point worth mentioning is that of the spark gap.
I was checking out an article on building a Tesla coil that threw out 3 foot sparks & this is what was recommended.
The gap width should be set so there is no spark when no cap. is connected.
The S.G.for a Tesla coil is just closed to the point where the fully charged cap. can discharge across it.
I especially enjoyed Zilano & Stoker's theories & will be jumping in & trying my own replications very soon.
Wish everybody good luck!
Hi everyone.
I've been following this thread for the past 2 years, but haven't been doing
much posting.
Just thought I'd add a few finer points on resonance.
1. To achieve max. voltage in a resonant circuit, try to use natural coil
resonance or as little capacitance as possible. Zilano mentioned this in one of her posts.
2.People have a hard time discerning the difference between series & parallel
circuits.
If L/C is in parallel across the power source then you have a parallel resonant circuit. Lets call this coil L1. Now if we couple another coil (L2) around L1 & parallel it with a cap.(c2) , would this L2/C2 circuit be parallel also?
Nope, it would be a series resonant circuit, because it's source voltage is INDUCED from the L1 coil. So this induced voltage is in series with the coil/capacitor.
Now the impedance across a series resonant circuit is close to zero but the voltage across EITHER the coil or cap.(not both) can be extremely high & limited only by circuit 'Q' thus giving us a nice gain in voltage.
Another point worth mentioning is that of the spark gap.
I was checking out an article on building a Tesla coil that threw out 3 foot sparks & this is what was recommended.
The gap width should be set so there is no spark when no cap. is connected.
The S.G.for a Tesla coil is just closed to the point where the fully charged cap. can discharge across it.
I especially enjoyed Zilano & Stoker's theories & will be jumping in & trying my own replications very soon.
Wish everybody good luck!
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