S1r PDF coil description and discussion !!!!

[capacitor70]

But don?t you limit with the red coil the discharge current of the inverter 330 uF cap ?
red coil have only 32 turns it will not limit current. we can go down to 20 turns it works....

Also the current pulse is backtransfomed into the green coil and
capacitor blocks backtransformed pulse, No problem of this pulse to HV coil because it have 50Kohm resistance...
thus steals energy there...

So is this circuit better than the diodes circuits ?
Yes, it is much much better than diodes, cheap and simple... no heating

What is wrong with the diodes circuits ?
Diodes get very hot and energy loss in diode is too much, it melts solder joints of diodes after few minutes of running

[hartiberlin]

Hi capacitor70,
why don?t you just do it this way ?

You might need to raise the limit voltage of the 330 uF cap a bit,
but as the coil together with the 330 uF cap acts as a lowpassfilter,
the fast sparc is not able to charge up the 330 uF cap much more,
so the voltage will not go much higher at the 330 uF cap.

Then when the sparkplug is conductive the few turns of the coil
will not hinder the current much.

And for the diode at the ignition coil it should
be sufficient to use a cheap 1N4007 or faster MR5404 diode
or something simular.

Regards, Stefan.

[capacitor70]

why don?t you just do it this way ?
Then when the sparkplug is conductive the few turns of the coil
will not hinder the current much.

And for the diode at the ignition coil it should
be sufficient to use a cheap 1N4007 or faster MR5404 diode
or something simular.

This circuit requires very large inductor to stop HV, Main problem with this circuit is HV will not rise, HV flows through the 330uF capacitor. And no plasma spark at all.
If large inductor it blocks current of LV side.

How it works ?
1. Capacitor charge to HV and first spark plug acts as switch, switch triggers at high voltage
level this plasma channel discharges capacitor in the green winding transformer
primary. also LC resonance works here
2. If we directly connect HV to transformer(coil) green winding it will not allow
voltage to rise enough to trigger second spark plug.
3. Once high voltage spike is given at primary, secondary generates High voltage
and it is connected in series with LV so LV+HV(secondary) makes spark and plasma is generates...

How to test ?
1. Connect primary as shown in figure.
2. Connect spark plug to secondary, Do not connect LV.
3. Once you see spark at secondary, its done,
4. Connect LV in series with secondary and spark plug.
5. Due to low number of turns on secondary it will allow LV through spark plug...

[hartiberlin]

This circuit requires very large inductor to stop HV,

Are you sure ?
Did you test it ?

I guess your small ferrite toroidal coil would be okay with about 20 windings..

Main problem with this circuit is HV will not rise, HV flows through the 330uF capacitor.

HV can not flow through the cap, cause the coil would block it,
so the HV will ignite the arc at the sparkplug...

And no plasma spark at all.
If large inductor it blocks current of LV side.

It must be tested, how big this inductance and its
ohmical resistance must be to block the High Voltage and
still conduct the low voltage current efficiently.

If you use the right choke as this coil, it will be much easier and
parts saving than your circuit.

But anyway, most important is, that we have either circuit that just works..

The question still is, if such an exploding arc ingnition system is
able to run a car efficiently and how much electrical power
is needed to run a car at what miles per hour speed.

Regards, Stefan.

[capacitor70]

HV can not flow through the cap, cause the coil would block it,
so the HV will ignite the arc at the sparkplug...

It is tested already and it dosen't work at all, tried lot of combination but its not working.

But anyway, most important is, that we have either circuit that just works..

Yes, I tried my coil circuit with different coils size, core material and turns, it works nearly in all combination....

The question still is, if such an exploding arc ingnition system is
able to run a car efficiently and how much electrical power
is needed to run a car at what miles per hour speed.

My observation is it dosen't require more energy because plasma have zero resistance. P=I X I  X R