DCDC Converter Board: MS 12
- Keith Wong (Deactivated)
- Arshan Khanifar
- Karl Ding
Owned by Keith Wong (Deactivated)
Goals
- Provide a stable, reliable 12V supply to all of the LV systems
Background and strategic fit
The lithium-ion battery in the car is charged at a maximum voltage of 150 V. However, all of the LV system is designed to operate off of 12V. Two DC-DC converters will be used in parallel to reduce the load under normal conditions, and if a failure occurs, each DC-DC should be able to handle the entire LV system's load continuously.
Requirements
| # | Title | User Story | Importance | Notes |
|---|---|---|---|---|
| 1 | Step down voltage from 151 V to 12 V | Find an appropriate part |
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| 2 | Supply the required current for the electrical components on the board | Find required part or use multiple converters to supply the proper current |
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| 3 | Provide redundancy for the circuit boards | Put parts into a configuration that allows for redundancy in case of failure |
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| 4 | Add protection to converter input | Assure that the DCDC converter board is adequately protected from overvoltage, overcurrent, and reverse voltage |
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| 5 | Temperature Sensing | We need a way to wire thermistors up to the DC-DC. The reference voltage and output signal is sent to Power Distribution where it will be sampled by the MCU's ADC |
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