voltage from ignition coil

[Joja]

Is it possible to "save" the voltage output from ignition coil on some high
voltage capacitor bank?
The output is between 10-15 KV.

So, basicly my question would be:
- How to save this i.c. high voltage output on capacitor bank and what
design should i use.

I can connect 15... 1KV capacitors, but i dont think that just this, would
do the trick...

 

[[email protected]]

Is it possible to "save" the voltage output from ignition coil on some high
voltage capacitor bank?
The output is between 10-15 KV.

So, basicly my question would be:
- How to save this i.c. high voltage output on capacitor bank and what
design should i use.

I can connect 15... 1KV capacitors, but i dont think that just this, would
do the trick...

You do understand this can kill you?
You can store quite a large charge in the garden varierty disk
capacitors but it will not be the whole 15kv. It can burn a hole in
your hand tho. When you start ganging these things together you can
get up into the "stick you hand in the TV" category.

 

[noName]

You do understand this can kill you?
You can store quite a large charge in the garden varierty disk
capacitors but it will not be the whole 15kv. It can burn a hole in
your hand tho. When you start ganging these things together you can
get up into the "stick you hand in the TV" category.

 

[noName]

You do understand this can kill you?

You can store quite a large charge in the garden varierty disk
capacitors but it will not be the whole 15kv.

-------------------------------------------------------------
Dont worry . Its good isolation and am taking big care in security part.
Basicly i have two options.
To convert this high voltage to higher current and then to pass it to
capacitor bank
or
to pass it directly to capacitor bank.

******************************************************
Problem:
If i use first approach i dont know how to use such high voltage on
transformer.

Question:
What is the "real / tested" current on such voltage.

 

[**THE-RFI-EMI-GUY**]

You would need an isolation diode (or series of diodes) with a total

15KVA reverse breakdown. Why not look up "Marx Generator" and see if

that is what you need.

Simple example:
http://www.electricstuff.co.uk/marxgen.htm

Is it possible to "save" the voltage output from ignition coil on some high
voltage capacitor bank?
The output is between 10-15 KV.

So, basicly my question would be:
- How to save this i.c. high voltage output on capacitor bank and what
design should i use.

I can connect 15... 1KV capacitors, but i dont think that just this, would
do the trick...

--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P

 

[John Gilmer]

Is it possible to "save" the voltage output from ignition coil on some high
voltage capacitor bank?
The output is between 10-15 KV.

If you plan on "saving" the charge you can, believe it or not, pick up some
voltage from your TV screen.

If you "ground" your screen when the set if off (by placing your hand on the
screen) and the turn the set on it will acquire a charge. You can draw
that charge off with time foil with a conductive lead to your capacitor
bank.

Repeated cycles of "off", "discharge", "on" will permit you to charge your
capacitor bank to the fringes of 20 kV.

As far as an ignition coil (automobile type) is concerned, I don't think it
has the "amps" to kill you.

 

[Don Kelly]

First thing check your insurance policy as you apparently have no idea of
what you are doing.

Suppose you can charge a 1 microfarad capacitor to 15KV (if you can find a
15KV 1 microfarad capacitor or equivalent) and have a HV diode to prevent
discharge back through the coil between pulses - then you will have a bit
less than 120 watt-seconds of energy stored, even if you run it all day.
What's the point of all the effort for such little outcome?

Don't play with dangerous toys that you don't understand. It isn't worth it.

Don Kelly [email protected]
remove the X to answer
----------------------------

 

[Don Kelly]

First thing check your insurance policy as you apparently have no idea of
what you are doing.

Suppose you can charge a 1 microfarad capacitor to 15KV (if you can find
a 15KV 1 microfarad capacitor or equivalent) and have a HV diode to
prevent discharge back through the coil between pulses - then you will
have a bit less than 120 watt-seconds of energy stored, even if you run it
all day. What's the point of all the effort for such little outcome?

Don't play with dangerous toys that you don't understand. It isn't worth
it.

Don Kelly [email protected]
remove the X to answer
----------------------------

added comment
The ignition coil can hurt you, the capacitor discharge can kill you.

 

[noName]

The main thing that i need is to find a way to "save" this HV for future
use.
I not making sparks or something like this.

Calculations:
Im passing 200v DC ( from 50uF capacitor ) to ignition coil and you can see
the spark on the spark gap.
I dont know what is the voltage output of the i.c. but i guess it's around
10-15KV.

Goal, exp. and conclusion:
Im trying to find some way to use/save this HV coil output so i can convert
this high voltage to high current.
Of course this is the tricky part becuse... i can not use ( as far as i
know ) standard converters to produce high current, regarding to such HV.
This is the part where i need your help.

So:
1.) Saving the HV from the coil
2.) converting to high current

 

[Palindr☻me]

The main thing that i need is to find a way to "save" this HV for future
use.
I not making sparks or something like this.

Calculations:
Im passing 200v DC ( from 50uF capacitor ) to ignition coil and you can see
the spark on the spark gap.
I dont know what is the voltage output of the i.c. but i guess it's around
10-15KV.

Goal, exp. and conclusion:
Im trying to find some way to use/save this HV coil output so i can convert
this high voltage to high current.
Of course this is the tricky part becuse... i can not use ( as far as i
know ) standard converters to produce high current, regarding to such HV.
This is the part where i need your help.

So:
1.) Saving the HV from the coil
2.) converting to high current

I suspect that there is a natural reluctance, by many of the posters
here, to give you any help towards you killing yourself or other(s).
Quite frankly, if you don't have the knowledge how to generate and store
extremely high voltages, you are very unlikely to have the knowledge on
how to handle such voltages safely. A single mistake can easily be
fatal. Even if not fatal, high voltage burns are very painful and can be
very slow to heal. They can also require extensive and very expensive
plastic surgery.

It might help if you define what you mean by "high current". eg, a
single pulse with a 20nSec rise time, a duration of 1uSec, a 100nSec
fall time and a peak value of 10kA. eg a constant current of 10kA for 10
seconds with rise and fall times less than 1mSec.

It might also help if you define what the load is going to be.

 

[Andrew Gabriel]

I suspect that there is a natural reluctance, by many of the posters
here, to give you any help towards you killing yourself or other(s).

Dead right.

As a teenager, I played around with ignition coils, rectifiers
and home-made HV (and rather high capacity) capacitors, and
produced >2" really meaty sparks (until my capacitors died).
But I'm extremely reluctant to go into details of how to do
this if I'm not supervising the experiment, as it's well
lethal if you screw up.

If it's the same person who was asking a few weeks ago, he
doesn't seem to have taken any notice of the advice I did
give him back then anyway.

 

[[email protected]]

| In article <[email protected]>,
|> I suspect that there is a natural reluctance, by many of the posters
|> here, to give you any help towards you killing yourself or other(s).
|
| Dead right.
|
| As a teenager, I played around with ignition coils, rectifiers
| and home-made HV (and rather high capacity) capacitors, and
| produced >2" really meaty sparks (until my capacitors died).
| But I'm extremely reluctant to go into details of how to do
| this if I'm not supervising the experiment, as it's well
| lethal if you screw up.
|
| If it's the same person who was asking a few weeks ago, he
| doesn't seem to have taken any notice of the advice I did
| give him back then anyway.

Back in the late 1960's I had one of those Heathkit experimenter boards,
about the middle of the line. It operated on 4 C cell batteries for a
6 volt DC level. After getting board with some of the various circuits
in the manual, I played around with a few of my own. Among them was a
couple circuits to cause the relay to oscillate. One of them operated
in the mode that closed the N.O. contact to short the coil, which in turn
let the contact open again. The other put the coil in series with the
N.C. contact. From this latter one I notice a spark coming from the
contact. I played around with that one for a while until I happened to
touch a couple contacts on the thing and go a nasty shock. That coil
being opened was sure letting our quite a high voltage. I never did
measure it, but it felt like more than 120 volts.

 

[Ben Miller]

Is it possible to "save" the voltage output from ignition coil on some
high
voltage capacitor bank?
The output is between 10-15 KV.

So, basicly my question would be:
- How to save this i.c. high voltage output on capacitor bank and what
design should i use.

I can connect 15... 1KV capacitors, but i dont think that just this, would
do the trick...

-

I will reinforce what others have told you. You are playing with things that
can kill you, and are way over your head as far as your knowledge goes.
Producing and storing high voltage requires specialized knowledge and safety
procedures, which I am pretty sure you don't have any idea about. Please
don't play with this further until you have received some formal training.

Ben Miller

-
Benjamin D. Miller, PE
B. MILLER ENGINEERING
www.bmillerengineering.com