board
Solar MPPT Power System
Public Unreviewedby 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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page.json+11−1@@ -35,5 +35,15 @@ "tool": "kicad", "version": "10.0.2" },- "updated_at": "2026-09-16T18:40:16.621Z"+ "updated_at": "2026-09-16T18:40:16.621Z",+ "discovery_triggers": [+ "solar mppt charge controller",+ "analog mppt without a microcontroller",+ "discrete solar battery charger schematic",+ "kicad board generated from python",+ "ne555 pwm buck converter",+ "tl431 battery cv charger",+ "lm324 current sense shunt amplifier",+ "12v lead acid solar charger pcb"+ ] }