How to increase high voltage from ignition coil using diode + inductor?

Thread Starter

russwr

Joined Aug 29, 2017
123


Ignition coil is not AC output. Therefore a voltage doubler can't be used. Pulsing DC output high voltage, was reported in 2008 to have been increased using diode + Millihenry inductor wire coil, and capacitance of plastic tub. Does this have anything to do with resonant charging choke or as pulse forming network? How to do test on work bench with Magnet magneto type Ignition AUTOTRANSFOMER that uses 3 connections. I have parts. Comments requested.
 

crutschow

Joined Mar 14, 2008
38,404
You post is too rambling to understand exactly what you want.
Are you referring to using an ignition coil in a flyback circuit to generate a high-voltage spark (how high)?
A diode-inductor, in that configuration, will not increase the voltage.
 

Thread Starter

russwr

Joined Aug 29, 2017
123
You post is too rambling to understand exactly what you want.
Are you referring to using an ignition coil in a flyback circuit to generate a high-voltage spark (how high)?
A diode-inductor, in that configuration, will not increase the voltage.
Mower Magneto Ignition coil output with added spark gap (as switch) , diode + inductor + capacitance to raise up max 10KV to 24Kv for sparking? is this Back EMF added in? How to set up on bench?
 

Thread Starter

russwr

Joined Aug 29, 2017
123
There was no original diagram. The man from 2008 was using bench ignition tester box and said was able to get 40Kv from normal magneto coil of 6-15kv. He had inductor in line with spark gap inside the tester with range switch on 50kv. The triple wires coils was in plastic deli tub that acted as a capacitance. 100 v from box was switching the primary windings of the Magneto coil, instead of normal spinning magnet . 12v battery hooked to input of the S1R9A9M9 wires assembly. An extra spark gap if in series with spark plug just divides up the original volts into 2 voltages. The coils were putting magnetic field over plug wire and the 2 flows were reversed, so as designed in interference, causing delay time. Maybe the delay was increasing the voltage.
The small CDI ignition boxes for motorcycles use a doubler/tripler for capacitor volts to discharge into transformer primary. - you should know that, but I don't know how they work. I need to know how to increase 12kv to 24kv.
 

MisterBill2

Joined Jan 23, 2018
27,315
If the demonstration was on the cartoon channel then the whole thing may be faked. In addition, some voltage multiplier circuits seem to work with only positive pulses. And one moreintersting thing is that the ignition voltage will be higher if the circuit is opened.
 

Tonyr1084

Joined Sep 24, 2015
9,744
The man from 2008 was using bench ignition tester box and said was able to get 40Kv from normal magneto coil of 6-15kv.
I've seen guys on YouTube talking about water injection in their car engines and getting over 40 MPG. Or so they say. Once there was one that said using HHO he could get over 150 MPG. I once built a car (full size, not a model) that could run thousands of miles on a single 9V battery. The point is that I can say anything. Doesn't make it true.

Watts divided by amps equals volts. So to increase the voltage you have to reduce the amps.
Now
Amps is voltage divided by resistance. With a 12 volt battery and a 1 ohm resistor I can get 12 amps out of it. Drop the resistance to 0.5Ω I can get 24 amps. IN THEORY with a 12 volt battery with zero ohms I can get infinite amps. In practice - that's just not possible.

There's a lot of fake videos on Yuk Toob.
 

MisterBill2

Joined Jan 23, 2018
27,315
Looking again ate post#1 and #3, what can be easily done is to drive that magneto primary coil with a higher voltage. Then, just like most transformers working at less than saturation, the secondary voltage is greater as well!
When I ran a "Mark Ten" CD box on my cars the spark was much stronger and both performance and economy were better. AND the spark would easily jump half an inch from a plug wire. CERTAINLY, dumping a 200+ volt pulse into a transformer intended to use 12 volts will result in a much greater output.
Now I have wondered about how to drive that Mark Ten with some circuit to serve as a high voltage source to discourage pests.
 
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