Dont give a f*** to that ridiculous message "cannot find solution" because there is solution and its working here for more than 2 years. I think this simulator is mad, but its the best that we have to mobile machines.
Uh I have plans to enhance this one adding transistors and zener diodes to make more than one output voltage option at the same PCB.
This works like a sharm, and I think I can say this is the elementary circuit that a technic should know how to build it without documentation consultings.
