A power BCD chipset for automotive HID lamp ballast systems

Two new power BCD (Bipolar-CMOS DMOS) integrated circuits designed for HID lamp ballast systems in an automotive environment are described. The first is an analog controller and switchmode power supply driver implemented in a 60 V process, while the latter is a full bridge driver implemented in a 500 V process (offline BCD). These devices have been used in a HID lamp ballast, and the complete system is described.

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