This page will discuss the design decisions into creating the DCDC converting using Vicors DCM3623xA5N17B4y7z DCDC converter module. It will also discuss possible changes made to a newer revision in the case of the board not meeting the power requirements of the car's low voltage systems due to efficiency.
Goals
The main goals of the DCDC converter was to regulate the battery voltage on the input terminals to about 13.5V at the maximum current out in the most efficient method possible to provide power to our low voltage systems. To do so, the design was made to be very linear, allow for adequate heat dissipation, and allow for a high current path.
Linear Design
The design of the PCB layout made sure to allow the current path to be a constant direction from left to right.
Heat Dissipation
The converter itself requires a solid heat dissipation strategy. Taiping was able ton secure some Vicor Heat sinks made for this model, that is placed on top of the DCDC module. In addition, the design included via stitching on the ground planes with large enough vias for sufficient heat sinking across the two planes.