student11
Junior Member level 3
I have a circuit about power supply control,
please review the circuit as attached picture.
Now, there are some questions need your support,
1) how to work, Q4 & Q3
2) what function is Q4?
3) Can I cancel Q4,and control Q3(MOSFET) with CPU? please review picture 2
thanks very much
please review the circuit as attached picture.
Now, there are some questions need your support,
1) how to work, Q4 & Q3
2) what function is Q4?
3) Can I cancel Q4,and control Q3(MOSFET) with CPU? please review picture 2
thanks very much