CDI ignition waveforms/ app. notes ...
 

Some of you have asked about the signal generated by the magnetic pickup coil in SC and Turbo distributors ... when trying to troubleshoot ignition problems ...

I found these application notes a while back, and thought some here might be interested ...

http://www.st.com/stonline/books/pdf/docs/4347.pdf

http://www.st.com/stonline/books/pdf/docs/5201.pdf

This post doesn't need a reply but somebody had to put those little stars

Did it ever occur to anyone that Warren is the "Wilson" of Pelican Parts? (as in the TV show Home Improvement)
Definitely the Renaissance man of our forum! Cheers! http://www.pelicanparts.com/support/...s/beerchug.gif

Who knew that thyristors and SCRs were still so common and had so many applications? A co-worker looking at my CDI box scoffed at the ancient technology.

thanks for the info.

"ancient technology"??????

It's called a simple & functional design which many EEs forget now
days, i.e. many electronic designs don't require a uP and memory
devices. Remember that the failure rate of any electronic system
increases with each additional component.

Check out this web site (www.systemsc.com) on the Waveforms page.

"Wilson" sounds a lot better than Warren "Rainman" Hall. :D
-Chris

Here is an online version of the 'classic' 1974 International Rectifier SCR Application Manual ... the data is still as valid today as it was 30 years ago!

It is a set of multiple files linked together, and exceeds 53 MB, total!

http://www.irf.com/product-info/thyristor/manual/scr_manual.pdf

Well I guess I did -- sort of. While not an EE; I sell to a number of analog IC companies (although not ST Microelectronics who produce the first device and document that Warren posted). There are still billions and billions of diodes sold each year. They are just tiny little things selling for not much more then pennies. But they are still used in most consumer devices such as cell phones, TV's (both analog, digitial and HDTV) and just about anything else that you can think of.