The evolution in the market of cars with electric power trains requires accurate optimization of power management sections. In electric cars, the power is collected and stored in a 400V battery, and then, from this battery, it is downscaled to lower voltage domains like 48V, 12V, 5V 3V, etc employing complex multi-stage switching DC-DC Converters. This operation could result in severe power losses and then topology optimization is mandatory. In this paper, a platform for a fast study and optimization of different DC-DC converter topologies developed in MATLAB environment is proposed. In the platform, basic DC-DC converter building blocks (inductive, and switched-capacitor) are available to compose complex DC-DC converter structures and to evaluate their fundamental limit performance and passive component values. Building block models are validated by circuit-level simulations. As example, the complete example of a DC-DC Converter from 400V down to 3V is proposed.
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Tettamanti et al. (2024) studied this question.
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