Electronics > Beginners
MOSFET for higher voltages (30-40 V)
Yansi:
With the exception, that the charge power supply is a constant current source there.
Nowhere one can see it in your drawings.
Zero999:
I'd replace the MOSFET with a BJT and add a suitable emitter resistor to give the required gate voltage.
jonroger:
+1 on adding a resistors to form a voltage divider. Without it, Vgs on QxB will exceed maximums.
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