Power System Design Overview


Below is a Mermaid code block representing a high-level block diagram for your power system:

Diagram


Reverse current protection Reverse current protection Solar Panel node_6V node_2W USB Input node_5V LiIon Battery 3.7V node_2000mAh Battery Charger MCP73831 Power Select Circuit Schottky Diodes Boost Converter MT3608 Buck Regulator AP7333-33 3.3V Buck Regulator AP7333-18 1.8V LED Indicators
This diagram shows:
  • Inputs: Solar Panel, USB, and LiIon Battery.
  • Power Management: Schottky diodes provide reverse current protection; battery charging via the MCP73831; and automatic selection via the power select circuit.
  • Voltage Regulation: The battery is boosted to a regulated 5V by the MT3608, which then feeds two buck converters that generate 3.3V and 1.8V.
  • Indicators: LED indicators display charging and power status.
You can use this block diagram as a reference to develop your detailed schematic within your Flux project.
deliminar pilas y colocar transformador de 12v
Below is an updated Mermaid code block showing a high-level block diagram with the battery removed and a 12V transformer added:

Diagram


Reverse current protection Reverse current protection Reverse current protection Solar Panel node_6V node_2W USB Input node_5V Transformer node_12V Schottky Diodes Power Selection Circuit DC Bus "Buck Converter (to node_5V)" "Buck Regulator (AP7333-33 for 3.3V)" "Buck Regulator (AP7333-18 for 1.8V)" LED Indicators
This diagram reflects the updated design:
  • Inputs: Solar Panel (6V, 2W), USB (5V), and Transformer (12V).
  • Protection: Schottky diodes prevent reverse current.
  • Power Management: The Power Selection Circuit automatically selects the appropriate power source feeding a common DC bus.
  • Voltage Regulation: Buck converters produce regulated 5V, 3.3V, and 1.8V supplies.
  • Indicators: LED indicators display the charging and power status.
You can use this diagram as a reference for updating your project design in Flux.
No schematic yet

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