The Old Standard Ignition System. Battery. Coil. Points. And Condenser....

[Jeg]

Hi Mags.
Thanks for the video.
What is cap's capacity?
Looks like switching frequency with cap's charging time plays some role on here. If you are able to use other switching method than a relay, one with a variable frequency capability, then i am pretty sure that efficiency will go higher. The best time is to fire when current (which charges the cap) reaches the zero level.

ps. If timing is right then diode is useless.

[Magluvin]

And Cifta, if your conclusion is that for there to be resonance, there would need to be 2 tuning forks, then does there need to be 2 tune ported speaker enclosures in order to call it resonance? Or can I just build 1 box for a sub in my car and call the gain i get by way of that tuned enclosure an effect of resonance?

Mags

[Magluvin]

Hi Mags.
Thanks for the video.
What is cap's capacity?
Looks like switching frequency with cap's charging time plays some role on here. If you are able to use other switching method than a relay, one with a variable frequency capability, then i am pretty sure that efficiency will go higher. The best time is to fire when current (which charges the cap) reaches the zero level.

ps. If timing is right then diode is useless.

The diode is just to be sure as I just wanted to make the process work the first time not knowing if the same timing I was using in the standard circuit used for direct comparison purposes was a good match for the same freq switching. Not looking to design it for a specific engine to provide spark, it is just demonstrations of resonance gains compared to no resonance. That has been the point of this thread since i said so in post 1.

Firstly, the efficiency of Teslas circuit far exceeds the standard circuit and very simply by rearranging the circuit slightly and the addition of a large inductor.  I thought it was very cool to show what Tesla was doing with this back then, and then to see they abandoned it for this current sucking standard we have been talking about here in this thread. And it also is about resonance here in this topic.


Tha cap is .14uf. I think it could change things with a different cap value, but again I wanted to demonstrate that it would work here as well as in the standard circuit. Same cap. Same spark coil. Same battery and same switching. Just the addition of the large inductor and the diode..

The standard circuit pulls 78w from the battery when the switch is closed, and the igniter circuit pulls max 3w and change.  Huge efficiency gain by the circuit change alone, let alone still having resonance in the picture.

Mags

[Jeg]

The standard circuit pulls 78w from the battery when the switch is closed, and the igniter circuit pulls max 3w and change.  Huge efficiency gain by the circuit change alone, let alone still having resonance in the picture.

Mags

Nice point Mags. Simple and straight.

Just for the records, with same components you need about 440 hertz of switching frequency. Relay looks like it switches close to 5 hz.

A damped wave is a composite wave, consisting of harmonically associated waves of proper amplitude.

Couldn't be expressed better. thanks

[Magluvin]

Just for the records, with same components you need about 440 hertz of switching frequency. Relay looks like it switches close to 5 hz.

Well if it were an 8cyl engine.  Idle rpm of 1000 revolutions per minute. Divide by 60 seconds would be 16.6 rotations per second.  Now we have a 4 stroke, so there are only 4 firings per rotation. so 4 times 16 is 66 spark events per second, not 440 as you say.

Mags