SPICE

main powertrain : https://github.com/goose1987/buck-CC-CV/blob/master/spice_sim/buck_LT3763.asc auxiliary boost : https://github.com/goose1987/buck-CC-CV/blob/master/spice_sim/aux_LT8362.asc

Note:

schematic requires eGaN models from Efficient power conversions

no models currently available for isolator or GaN driver so approximating with ideal sources

Solar model approximate with simple norton equivalent circuit