Solar MPPT Power System - kicad/mppt-power-system.kicad_pro

by TylerK

A 30 W solar battery charger with regulated 5 V and 3.3 V rails: an STM32G031 running perturb & observe MPPT and a CC/CV charge state machine, steering a TI LM5175 4-switch buck-boost through a single analog control input. Four-layer KiCad board, schematic and PCB generated from Python, with an electrothermal simulation run against the published board file.

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TylerK Replace discrete-analog board with MCU/IC redesign: STM32G031 P&O MPPT + CC/CV firmware, LM5175 buck-boost, INA180 curr… e48ba30 1mo ago

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{
  "board": {
    "3dviewports": [],
    "design_settings": {},
    "layer_presets": [],
    "viewports": []
  },
  "boards": [],
  "cvpcb": {
    "equivalence_files": []
  },
  "libraries": {
    "pinned_footprint_libs": [],
    "pinned_symbol_libs": []
  },
  "meta": {
    "filename": "mppt-power-system.kicad_pro",
    "version": 3
  },
  "net_settings": {
    "classes": [
      {
        "bus_width": 12,
        "clearance": 0.2,
        "diff_pair_gap": 0.25,
        "diff_pair_via_gap": 0.25,
        "diff_pair_width": 0.2,
        "line_style": 0,
        "microvia_diameter": 0.3,
        "microvia_drill": 0.1,
        "name": "Default",
        "pcb_color": "rgba(0, 0, 0, 0.000)",
        "schematic_color": "rgba(0, 0, 0, 0.000)",
        "track_width": 0.25,
        "via_diameter": 0.4,
        "via_drill": 0.2,
        "wire_width": 6
      }
    ],
    "meta": {
      "version": 4
    },
    "net_colors": null
  },
  "pcbnew": {
    "last_paths": {
      "gencad": "",
      "idf": "",
      "netlist": "",
      "specctra_dsn": "",
      "step": "",
      "vrml": ""
    },
    "page_layout_descr_file": ""
  },
  "schematic": {
    "annotate_start_num": 0,
    "drawing": {
      "default_line_thickness": 6,
      "default_text_size": 50
    },
    "legacy_lib_dir": "",
    "legacy_lib_list": [],
    "meta": {
      "version": 1
    },
    "net_format_name": "KiCad",
    "page_layout_descr_file": "",
    "spice_current_sheet_as_root": false,
    "spice_external_command": "spice \"%I\"",
    "spice_save_all_currents": false,
    "spice_save_all_voltages": false,
    "subpart_first_id": 65,
    "subpart_id_separator": 0
  },
  "sheets": [],
  "text_variables": {}
}