====== ST reference ===== ST Microelectronics created an application note AN819 in 1995: https://www.st.com/resource/en/application_note/cd00003947-capacitive-discharge-ignition-stmicroelectronics.pdf It is short but very informative with a lot of diagrams. So it is highly recommended for reading when you are interested in CDI technology. ===== ST documents ===== There are a few documents about ignition knowledge published by ST. CAPACITIVE DISCHARGE PRINCIPLE: {{ ::dsa0030910.pdf |}} CAR IGNITION WITH IGBTS (1999): {{ ::cd00003911.pdf |}} High voltage ignition coil driver power integrated circuit: **VB525SP-E** (2010): {{ ::cd00286281.pdf |}} High voltage ignition coil driver power integrated circuit: **VB526SP-E** (2010): {{ ::cd00286429.pdf |}}