Hi There,
I've got a problem for a solar project which is: I need to turn the panel off if the battery is nearing overcharge, however I need the panel to be on if the battery, and the MCU (PIC in this case), are dead. I've been through a few circuits (and burned up a PIC or two) but I think I have a solution.
Does this schematic look legit?
http://backyardsolar.blogspot.com/2010/01/n-channel-mosfet-panel-solution.html
I'm new to MOSFETs and appreciate any insights. I'd be interested in any other designs for this kind of thing if you know about one.
This design does suffer from the drawback of overcharging the battery if the MCU side of things fails for any reason (voltage regulator, software etc.) which is not the best but seems better than a solar device that can't work once the battery is dead.
Thanks!
I've got a problem for a solar project which is: I need to turn the panel off if the battery is nearing overcharge, however I need the panel to be on if the battery, and the MCU (PIC in this case), are dead. I've been through a few circuits (and burned up a PIC or two) but I think I have a solution.
Does this schematic look legit?
http://backyardsolar.blogspot.com/2010/01/n-channel-mosfet-panel-solution.html
I'm new to MOSFETs and appreciate any insights. I'd be interested in any other designs for this kind of thing if you know about one.
This design does suffer from the drawback of overcharging the battery if the MCU side of things fails for any reason (voltage regulator, software etc.) which is not the best but seems better than a solar device that can't work once the battery is dead.
Thanks!