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Thread: CNP/COP conversion for OEM ECU

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Posts: 121-130 of 182
2015-08-12 02:18:08
First test with Toyota 1ZZ coil. These put out around 23kv before breaking down. Not ideal for high hp. This test was from appx 1000 RPM to 5000 RPM as my Jim Stim cannot go higher than that. However 5000 RPM is around 80hz and that slow as fuck in the electronics world. This design uses a voltage isolator to separate the processor from the ignition driver. Doing this eliminates all continuity between the processor and the driver. I am using two power sources to drive this, really a piggy back power source. I use a 1-32vdc lab power source powering a power inductor supply. MORE POWER!!! The power inductor design will be adopted to the circuit board eventually, but it can provide up to 3amp current which is much better than a basic dc/dc converter. So without further ado, here is a video of the first digitally isolated DISSR.

2015-08-12 17:10:05
That is a cool piece of kit

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2015-08-12 19:33:03
Very nice

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2015-08-31 14:12:26
Progress is slow. After an incident with my blind paraplegic dog, I am converting my garage to a workshop/ lab. Climate controlled, carpeted, the works. School also started back up and my adviser offered me the 200 level projects course so we are funded again. But I have more course load this semester. I am assembling a modular controller this weekend that should be bench tested in a few weeks. Also in the works for my CAD class is a 3D printed ignition coil test stand.
2015-08-31 18:39:07
Very cool

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2015-09-18 21:27:27
New design is functioning. In class demo will be on Tuesday. Its currently in a modular design but is being scaled down.

So basically the glitch i was running into was not found when using the ls2 coils. It was only when trying to use other coils that I found I had this issue. Ls2 coils are really well built and have some really good noise suppression.
Last edited by ebinkerd on 2015-09-18 at 21-31-53.
2015-10-26 22:03:35
Newest design. I have able to design out the current issue so I went back to the older configuration. Less crap to deal with. It now has a built in 3.5amp driver. There isn't an automotive induction coil this cant handle. I was tired of soldering wires and terminal blocks on the board so I made a edge connector. Makes testing multiple boards really fast and easy. So far its past bench testing. Load testing will probably take place in a week or two.

Last edited by ebinkerd on 2015-10-26 at 22-08-04.
2015-10-27 13:49:03
Great progress! Keep it up.
2015-10-28 16:09:43
Awesome man, can't wait to see the finished results!
2015-11-02 04:31:57
Looks very cleanly designed. Hopefully load testing goes well

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