High power ignition coil driver

January Rev 7 1/11 11 BUZP BUZPFI High voltage ignition coil driver NPN power Darlington transistors Features Very rugged bipolar technology Built in clamping Zener High operating junction temperature Fully insulated package (U.L. . An Ignition Coil driver is simply a high current DC pulse generator. With added feedback protection it is ideal for, transformer drivers, Ignition coil circuits and other high voltage PSU'sEstimated Reading Time: 5 mins. Super Simple Ignition Coil Drivers: An ignition coil (or spark coil) is nothing more than a low frequency auto-transformer with a relatively high turns ratio. The transformer typically has only a dozen or so turns on the primary but many thousands on the secondary. It is very compa Estimated Reading Time: 7 mins.

Ignition Controllers and Drivers. ST offers high-voltage ignition-coil power driver ICs based on our VIPower™ M technology, featuring a vertical-current-flow power Darlington pair and logic-level compatible driving circuit. Recently added to this portfolio is the new SMART IGBT which is based on BCD and IGBT technologies for the driving and power stages respectively. An ignition coil supplies between 15 and 25KV (high power ignition coils do 40KV) connected to 12V on the primary winding. I recommend to use a maximum frequency of to Hz at 30 to 40% duty cycle. At higher frequencies and higher duty cycles the coil might overheat. You won't probably get an arc, but nice sparks. Features, Applications: HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C. PRIMARY COIL VOLTAGE INTERNALLY SET COIL CURRENT LIMIT INTERNALLY SET s LOGIC LEVEL COMPATIBLE INPUT s DRIVING CURRENT QUASI PROPORTIONAL TO COLLECTOR CURRENT s DOUBLE FLAG-ON COIL CURRENT DESCRIPTION The is a high voltage power integrated circuit made using the STMicroelectronics VIPowerTM technology, with vertical current.

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