Analog and power management circuits With the rise of electric vehicles, high-voltage batteries have become the standard. Each battery pack requires a battery management system (BMS) to monitor cell health and ensure safe operation. These systems operate at low voltages which cannot be directly supplied form the battery. Thus they are currently supplied through linear regulators directly converting the high voltage from the battery to a lower voltage. This approach is simple but highly inefficient for such a large conversion step.
This research explores the design of a fully integrated high-voltage switched-capacitor DC-DC converter in bulk CMOS, capable of stepping down from the high battery voltages to the low supply voltage needed by the BMS. By replacing the inefficient linear regulators currently used, the proposed converter aims to drastically reduce power losses and improve the overall efficiency of BMS systems.
