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DescriptionProject plan for the DCDC converter board
Target release
Epic
Document owner

Keith Wong (Deactivated)

Project leads

Keith Wong (Deactivated), Former user (Deleted)

Team members

Goals

  • Step down the battery voltage to 12 V for the boards, lights and horn
  • Provide adequeate current for the boards, lights and horn to operate properly

Background and strategic fit

The lithium-ion battery in the car is charged at a maximum voltage of 160 V. However, the circuit boards, lights, and horn operate with an input voltage of 12 V. Therefore, the voltage needs to be stepped down to allow for proper operation.

Requirements

#TitleUser StoryImportanceNotes
1Step down voltage from 160V to 12 VFind an appropriate part
  • Input range for the DCDC converter is the range of voltages for the battery (90 - 160 V, 129.6 V nominal)
2

Supply the required current for the electrical components on the board

Find required part or use multiple converters to supply the proper current


  • Boards should be on a separate rail from the lights and horn
  • Boards require approximately 10 A of current at peak
  • Horn and lights require 5 + ? A of current at peak
3Provide redundancy for the circuit boardsPut parts into a configuration that allows for redundancy in case of failure

User interaction and design

Key Component: Cosel DHS200A https://en.cosel.co.jp/product/powersupply/DHS/DHS200A/

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