CAPACITOR_DISCHARGE_IGNITION_CIRCUIT

Published:2009/7/13 5:15:00 Author:May | From:SeekIC

This ignition circuit consists of a dc-to-dc converter delivering 250 to 300 V to a 1.5-mF capacitor, and discharging it through the ignition coil primary upon the opening of the distributor points. SCR is triggered by the opening of the distributor points via inverter and pulse shaper Q3 and associated components. This circuit is typical of CD ignition systems. T1 is a special transformer for this circuit, but any suitable dc-to-dc converter transformer and circuit that delivers 250 Vdc (or more) can be used.



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