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Since87 · 05-29-2003, 01:08 PM

This design has a MOSFET used 'backwards', and I don't see the point of having a second 'forward' MOSFET in series with it.

I don't see any point to the 50 Ohm resistor. It will slow the speed with which power 'comes up' at power up. But, is there a benefit to that?

Once the 'forward' MOSFET is gotten rid of, the zener protection needs to be from gate to source of the 'backwards' MOSFET.

Edit: punctuation

05-29-2003, 01:08 PM	#162
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	This design has a MOSFET used 'backwards', and I don't see the point of having a second 'forward' MOSFET in series with it. I don't see any point to the 50 Ohm resistor. It will slow the speed with which power 'comes up' at power up. But, is there a benefit to that? Once the 'forward' MOSFET is gotten rid of, the zener protection needs to be from gate to source of the 'backwards' MOSFET. Edit: punctuation