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Boosting high-voltage MPPT solar charger based on LT8491

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JonasCz/lt8491-charger-boards

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LT8491 MPPT boosting solar charge controller mainboard

PCB layout:

Screenshot of PCB layout

Description: This project started out with the goal of reimplementing Craig Peacock's design in KiCad, while also making it more compact;

Status: Test PCB assembled: LT8491 starts and communicates over i2C, but performance is unusably poor. Unsure why.

Features:

  • Auxilary switching power supply to power additional future display board, can be enabled/disabled at runtime for power saving
  • As compact as possible while keeping the board single sided
  • High performance and efficiency (hopefully)
  • XT60 connectors
  • 60v max in and out

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Boosting high-voltage MPPT solar charger based on LT8491

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