Ignition coil driver circuits and experiments

audioguru2

Apr 6, 2004
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Hi Steven,
Can you wire the spark coils in parallel but in opposite phase, so that one produces +25,000V and the other produces -25,000V?
Then you would have a long 50,000V spark jump between them.. ;D

 

steven2

Jan 19, 2004
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:)audo guru i get big enougth arcs when i wire them in parralell but what do you mean by opisite phase  im not that familiar with that term yet. hey the voltage from the driver circuit to the coil is one thing you wait till i push a charged up cap through  it like i once did with my old modified camera flash unit i added to diodes and took out the photo flash cap and put in a 350 volts 47 uf electro and charged that up and with the push of a button i discharged that into it and that was one coil at the time and even though ive ran a parralell coil of the driver and even did 3 i will biuld another ignition coil driver cap charger and do it that way charge the cap up a higher voltage and value and throw that though it for bigger arcs if possible  so 2 copils in parralell would be intresting  i can top those coils up some more with oil if need be i have spare coil oil around so this would be intresting to try

 

audioguru2

Apr 6, 2004
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When you parallel the coils, connect one of them with its terminals opposite the way the other one is wired to make them opposite phase. Maybe car ignition coils don't have the polarity of their primary terminals marked, so you would need to try it then reverse the connections to one of the coils to see if it makes a higher voltage between them.

 

steven2

Jan 19, 2004
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:)thankyou audio guru its great to have your input into the matter

 

steven2

Jan 19, 2004
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;)heres a printed circuit board i just made for the ignition coil driver the ic is somewhere else  and the wires to it run from pins on the printed circuit board  same for the 2n3055 npn power transister 

View attachment 38116

 

steven2

Jan 19, 2004
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  with the help of an electronic prototype board and a peace of plastic from the lid of a cd cover i was able to make an electronic component leg spacer  drawing tool so that when i did the printed circuit drawing for the ignition coil driver i just used this plastic leg spacer gauge for drawing the components down  so that when i do the printed circuit onto the coper board all component legs are spaced apart  the right distance , so that when the boards done and i drill out the holes for the component legs and put in a component to solder, say a resister they fit perfectly , this idea eliminates the need to do ruler measurements just to get the holes the right distance apart for the component legs to fit through, ill upload the detailes for this handy peace of tool soon , now the capacitors on the ignition coil driver they are 0.1uf green caps  marked as 104 and after that is the letter j for %5  . there are different coloured green caps  marked as 104 and has the letter k , thats 10%, im not really sure but i think  the performance of the ignition coil driver with the 104 j caps are better than that with the caps marked as 104 k for 10%

 

steven2

Jan 19, 2004
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here are some latest pictures , this is the parralell ignition coil setup i once rigged up. this time ive upgraded it and used 2 home made pvc ignition coil holders and the electrodes, well i use the 2 brass ones that i used once before for the same setup , now the high voltage return, well i was missing an electrode for that so i used a lenght of soft alliuminium alloy of some kind, i think they used it dureing powerline repairs of some kind , that peace was cut from a long coil of it , anyhow the first coil has one hv electrode thats bent towards the other hv electrode on the second coil now i used home made pvc electrode spacers to space the second hv electrode from the hv return ,  now when wired up to the ignition coil driver  these 2 coils together in parralell put out around say 50,000 volts  , now notice the lead pencill in one of the pictures , it was a pencil like that that i once held near the second hv electrode and an arc shot into it and punctured the wooden insulated end of the pencil and into my finger, the lead graphite itself acted like a resister i geuss but the clean holes it burnt into my skin with no pain gives me great ideas , for the use of high voltage arcs in exfoiliateing dead skin tissue and wart removal , and other things . now i did get a bit of black on my fingers where the holes got burnt but it just wipes off and leave clean holes . i once used another arc from another hv voltage circuit and beleave it or not  i was able to zapp a wart om my mates head, with it and it shrunk and  dried it out so good there was nothing but a tiny knob of dried skin left , if it had any mioster in it it got fried away in the process, and he dident feel it and its all healed now , if i pump hundreads of volts into the parralell coils here i would get arcs going all over so next i will make another setup which involves dismanteling 2 coils and modifying them and rerouting the inputs and returns , otherwide ill allso have arcs flying around the top insulated hv output to the neg return  well thats kind of what happend once  and i couldent beleave the arc to do that , but it did , makeing me think at first that the top high voltage insulated top section of the coil was breached , but it was suposed to fly from the hv out to neg but it was comeing from neg and going around the hv  part and going to the other input  it wasent doing what it was suposed to do ,  i cant exsplain long storey

 

steven2

Jan 19, 2004
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:)the first output electrode  can be bent away even further for longer arcs and for bigger voltage input from some charged up capacitors id have to modify them and space the coils apart even more

View attachment 38637

 

steven2

Jan 19, 2004
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:)heres some pictures of the parralell ignition coil in action, i allso shot some footage of it to but it wont post so ill try redo a shorter video footage and loop it

View attachment 38648

 

Tedy1

Feb 20, 2005
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Hi!
Here is my ignition coil
bscap0008.jpg

bscap0009.jpg


There si little more tham 1cm space between wires. I need to fix that driver, because I didnt have samo parts like on scheme.

Sorry for bad quality  :p I have captured this images from video recorded on my mobile phone.

 

steven2

Jan 19, 2004
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:)oh it would of been nice to see a close up of it , they have some strange ignition coils out , ive seen one with more than one hv output and it was rectangle shaped, and the one i used in one of my high voltage photo flash cap chargers as posted in the topic in the high voltage stuff section , it has a shape i cannot describe

 
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steven2

Jan 19, 2004
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strange but looks like it has 2 sets of inputs and 2 hv outputs so you can make to high voltage cap chargers in one with that

 

ante1

Jan 24, 2004
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Hi Steven,

It looks like the coil from a two cylinder motorcycle!

 

steven2

Jan 19, 2004
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ive never seen a motor bike ignition coil before , but it dose make sense as even my car has 2 for the electronic ignition, and the coil posted has all the right stuff for a 2 cylender ignition coil on a moter bike i geuss

 

Tedy1

Feb 20, 2005
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Here are some more pictures:
coil2.jpg

coil3.jpg


I think this ignition coil is from old car.

 
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