The request
“Draw a dual-input power selector for an off-grid security camera with an 18 V solar panel, LiFePO4 battery, fuses, capacitors, two blocking diodes and a 10 A camera load.”
Then tryChange the camera load to 5 A.Add a low-battery indicator.
What is in this drawing
Read the decisions behind it.
01
Use Schottky diodes for low forward drop and automatic highest-voltage selection
02
Add fuses and input capacitors for protection and filtering
03
Include bulk output capacitor to handle load transients
Reuse for any 12V battery/solar dual-supply system up to 10A where simple automatic switchover without external control is acceptable.
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