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Solar MPPT Power System

Public Unreviewed

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.

hardwareboardpcbkicadsolarmpptpower-electronicsbattery-chargerbuck-boostmcustm32firmwarelm5175ina180current-sensegeneratedelectrothermal-simulationfirmware-testing
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mppt-power-system / kicad / generator-scripts
Name Last commit message Last updated
audit.py Revision 4: first-build audit. Bypass caps assigned to their own supply pin (worst distance 62.5mm -> 10.0mm), signal v… · TylerK 1mo ago
boardsize.py Update 51 file(s) · TylerK 1mo ago
build.py Replace discrete-analog board with MCU/IC redesign: STM32G031 P&O MPPT + CC/CV firmware, LM5175 buck-boost, INA180 curr… · TylerK 1mo ago
check_board.py Board update: 4 unconnected items (from 13), 0 electrical and 0 mechanical DRC findings, silkscreen findings 73 -> 10;… · TylerK 1mo ago
dedupe_vias.py Update 50 file(s) · TylerK 1mo ago
fplib.py Board update: 4 unconnected items (from 13), 0 electrical and 0 mechanical DRC findings, silkscreen findings 73 -> 10;… · TylerK 1mo ago
geomcheck.py Board update: 4 unconnected items (from 13), 0 electrical and 0 mechanical DRC findings, silkscreen findings 73 -> 10;… · TylerK 1mo ago
handroute.py Update 51 file(s) · TylerK 1mo ago
merge_segments.py Update 50 file(s) · TylerK 1mo ago
mppt_mcu_netlist.json Replace discrete-analog board with MCU/IC redesign: STM32G031 P&O MPPT + CC/CV firmware, LM5175 buck-boost, INA180 curr… · TylerK 1mo ago
narrow_fix.py Board update: 4 unconnected items (from 13), 0 electrical and 0 mechanical DRC findings, silkscreen findings 73 -> 10;… · TylerK 1mo ago
parse_netlist.py Replace discrete-analog board with MCU/IC redesign: STM32G031 P&O MPPT + CC/CV firmware, LM5175 buck-boost, INA180 curr… · TylerK 1mo ago
pcbgen.py Update 51 file(s) · TylerK 1mo ago
placeopt.py Update 51 file(s) · TylerK 1mo ago
placescore.py Update 51 file(s) · TylerK 1mo ago
pourstitch.py Update 50 file(s) · TylerK 1mo ago
route2.py Update 51 file(s) · TylerK 1mo ago
run_placeopt.py Update 51 file(s) · TylerK 1mo ago
schgen2.py Replace discrete-analog board with MCU/IC redesign: STM32G031 P&O MPPT + CC/CV firmware, LM5175 buck-boost, INA180 curr… · TylerK 1mo ago
silk.py Board update: 4 unconnected items (from 13), 0 electrical and 0 mechanical DRC findings, silkscreen findings 73 -> 10;… · TylerK 1mo ago
stitch.py Update 51 file(s) · TylerK 1mo ago
symlib.py Publish 1.0.0 · TylerK 1mo ago
widen.py Update 51 file(s) · TylerK 1mo ago