Quote from: Leely on December 06, 2013, 08:26:05 AM
This thread should be deleted. There are other free energy replications out there. If u keep on following this thread, you will keep on getting misled that an ordinary capacitor will discharge and give u free energy, not only that; and power heavy load.

Wow!  Show us your free energy device PLEASE!!!!.
We would all like to replicate it.

LC tank circuit with a capacitance of 2.533nF and an inductance of 10uH with a resonant frequency of 1 MHz, excited by an H-bridge +/- 1 V square wave = 400V AC @ 8A in 100us, simulated.

Theoretically with circuitry to convert that to 50 or 60 Hz a transformer could output about 14V @ 228A, ignoring circuit losses.

Anybody willing to confirm or refute this?

Quote from: Loner on December 06, 2013, 06:57:47 AM
Magluvin

I can finally offer some info that I have done the research and testing on.  With reference to the Cap on standard points ignition.  This cap is ONLY for protection of the points, and to increase the speed of the open.  Without this cap, the points arc more when opening, which actually slows down the rate of open....

Seeing that I have "updated" several coil systems from points to MOSFETs, I can say for certain that this is the case, in this specific example.  The smallest voltage gain and plug spark comes from points with no cap.  Next larger is the same points with a cap, and the best spark is with no cap, but using a MOSFET.  (The nasty part has to do with the voltage rise on the primary with no plug to spark, as this lack of load creates a very high primary spike.  Several auto mfg have this problem in their final amps, meaning that if you pull and insulate a plug wire, you WILL burn out the final amp transistor.  I use MOV's on ALL my units.)

As to the value of the cap on points, it is specifically chosen to level the pitting of the contacts.  Too little and one side pits.  Too much and the other side pits.  (Been too long for me to remember which side goes with which.  Sorry.)

I realize I have said all this before, but as there are SO many posts out here, I just thought I should repeat myself.  Designing ignition systems has become passe, as it's so simple to purchase aftermarket units these days.  Hope that helps.

I have done much testing on this too. I found that while testing old spark coils at my work, not 1 of them produced as good of a spark, without the cap(.47uf 100v) than they do with the cap across the switch.
Sure it protects the points/switch. But the difference in spark is no joke.

There are so many circuits out there explaining it all wrong. Like here at Hyperphysics...

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/ignition.html

Where they have the cap, it does nothing for saving the switch contacts. I see many quoting that site, but that info should also be double checked.

Then we have this...

http://mgaguru.com/mgtech/ignition/ig104.htm

This guy has it right.  "Initial pulsating is done by connecting and disconnecting the primary circuit ground connection.  Alternating current then comes into the function in a 'big way' by electrical "ringing" in the condenser at very high frequency."

Mags

  without the cap the bemf will jump the points, the capacity of the cap has to be adjusted to match the points frequency. To much capacity in the cap and the cap will release its energy late, not enough capacity and the cap will release its energy too early. or explode 

Whats really interesting is the bemf comes back into the cap as high voltage, but leaves the cap as current.

Although there is another option, which scenario do you think is happening