Solar MPPT Power System - Commit

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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Add fabrication sources and export provenance for molecule builds

AdityaAngajala ·67c9559991 ·22d ago ·parent 805d738

2 files changed +108

export.json+108 mppt-power-system-fab.zip

export.jsonadded+108

@@ -0,0 +1,108 @@+{
+  "exporter": "board-look fab.py (backfill)",
+  "tool": "kicad-cli",
+  "toolVersion": "10.0.3",
+  "tier": "kicad-board",
+  "backfill": {
+    "note": "Retrospective fabrication plot from the recorded board source; existing STEP and models are unchanged.",
+    "source": {
+      "path": "kicad/mppt-power-system.kicad_pcb",
+      "sha256": "bf1394cbc902f460376c5ec1d0044933eb1f08278029f553eedad360bfe1290f",
+      "gitBlob": "46945ac743431048adbcb4bfa0d0fb65e90508f0",
+      "commit": "805d738419a9f014a2c0e1c5c19dfbaeb35c6af3"
+    },
+    "commands": [
+      "kicad-cli pcb export gerbers --layers F.Cu,B.Cu,F.Mask,B.Mask,F.Silkscreen,B.Silkscreen,Edge.Cuts --check-zones --no-netlist",
+      "kicad-cli pcb export drill --format excellon --excellon-units mm --excellon-separate-th --drill-origin absolute"
+    ],
+    "datesRemoved": true
+  },
+  "files": [
+    {
+      "path": "kicad/mppt-power-system.kicad_pcb",
+      "role": "board_kicad_pcb",
+      "bytes": 2691015,
+      "sha256": "bf1394cbc902f460376c5ec1d0044933eb1f08278029f553eedad360bfe1290f"
+    },
+    {
+      "path": "mppt-power-system-fab.zip",
+      "role": "fab_zip",
+      "bytes": 320285,
+      "sha256": "bfdbf4ef5f3923b9bf4f3ce8f80ff3a8286389ce910c8aeb57f5905f103b0dfb",
+      "entries": [
+        {
+          "path": "mppt-power-system-B_Cu.gbl",
+          "role": "copper_bottom",
+          "bytes": 350614,
+          "sha256": "27070b20f0b5cdd9c29fb275c45a57953770207b36f0b5e77a0cce09589d726b"
+        },
+        {
+          "path": "mppt-power-system-B_Mask.gbs",
+          "role": "mask_bottom",
+          "bytes": 2698,
+          "sha256": "6fd0c9ec8252bc4f5c77338677323d536737a7890e898de12d28db3f55cef311"
+        },
+        {
+          "path": "mppt-power-system-B_Silkscreen.gbo",
+          "role": "silk_bottom",
+          "bytes": 412,
+          "sha256": "811f2d89017b84dc47fb6e9317dd899af41d49ddabed91c8590424d6d734f061"
+        },
+        {
+          "path": "mppt-power-system-Edge_Cuts.gm1",
+          "role": "outline",
+          "bytes": 633,
+          "sha256": "174b259de481250ae3abada856a19617d554ec72acca97d7d49d291bbb221625"
+        },
+        {
+          "path": "mppt-power-system-F_Cu.gtl",
+          "role": "copper_top",
+          "bytes": 752892,
+          "sha256": "5e5d2af3aed9cf45d71bc846fd2cd1de7c9c01f105f30896054ea0d3d91ab9d6"
+        },
+        {
+          "path": "mppt-power-system-F_Mask.gts",
+          "role": "mask_top",
+          "bytes": 13267,
+          "sha256": "d6f5c4635b163ed47d31876a065beb9b5c2e68ae5c7e054e5da9dda46c55cb40"
+        },
+        {
+          "path": "mppt-power-system-F_Silkscreen.gto",
+          "role": "silk_top",
+          "bytes": 199539,
+          "sha256": "2e10c03a9f5f681eb636f11c2450c71789f2a61055a4dcb918cd396a4bd0a965"
+        },
+        {
+          "path": "mppt-power-system-NPTH.drl",
+          "role": "drill_unplated",
+          "bytes": 233,
+          "sha256": "a8c7b157d69f105d2c5fa382ae93eef554bcb982a302313c72d270a6b518d158"
+        },
+        {
+          "path": "mppt-power-system-PTH.drl",
+          "role": "drill_plated",
+          "bytes": 6140,
+          "sha256": "edd15f5edf28d983b95ec6827af1e67cc28be6737844dd23c7833826441590b2"
+        },
+        {
+          "path": "mppt-power-system-job.gbrjob",
+          "role": "gerber_job",
+          "bytes": 3267,
+          "sha256": "14ec013de263fc1d60e789756f351773e550c834b87a1257824d7dfa4f978dd5"
+        }
+      ]
+    }
+  ],
+  "stackup": {
+    "thicknessMm": 1.6,
+    "finish": "HASL"
+  },
+  "schema": "adom.export/1",
+  "exporterVersion": "backfill-2026-10-19",
+  "gerbers": {
+    "included": true
+  },
+  "drill": {
+    "plating": "split"
+  }
+}

mppt-power-system-fab.zipadded

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