Mabs 150v 45a mppt build

Author Message
Senior Member

Joined: 10/02/2015
Location: United Kingdom
Posts: 176
Posted: 12:59am 23 Jun 2023      

Thanks for the fet suggestion  - I'm not really clear on how to choose fets other than the obvious volts, amps, rds and "typically used in switchmode psus" on the datasheet   .

Yes i should probably put a heatsink on the 7805, although I'm more inclined to put the backlight on a switch/button as, once the unit's up and running i won't be watching it constantly,  and 200mA is a significant drain of power. Or if there's a spare pin on the nano i suppose i could get it to turn on the backlight when the battery >= float voltage,  if i dare tweak poidas code.