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The power conversion system powers all of the vehicle’s low voltage systems from the HV pack. The team has historically used Vicor DCM modules (Vicor DCM3623TA5N17B4T70) for isolated LV power, however they offer relatively poor efficiency at our expected loads (75-85%) at our expected loads .
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The Vicro Vicor module is a highly integrated device with no opportunity to improve it’s performance, so we have decided to investigate creating our own converter.
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10W efficiency of > 90%
30W efficiency > 94%
Other Background
Our battery pack consists of 36-S LG M50T cells, so these are the electrical characteristics:
Cell | Pack | |
|---|---|---|
Nominal Voltage | 3.63 | 130.68 |
Minimum Voltage | 2.5 | 90 |
Maximum Voltage | 4.2 | 151.2 |
We want our PCS to have components spec’d for a nominal input voltage of 130.68 V
Topology
Idk these are a thing:
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