Pleasae be careful with the operating limits of the MOSFET... the part you are using has a Gate-Source maximum voltage (Vgss) of 8 volts and in spite of being zener protected, you should not routinely use that protection as a design feature. I'd say that this part is safe for this circuit when the input voltages are lower than 7 volts. Other MOSFETS have higher Vgss that can be used to your advantage. I.e. the BSS84 is also a PMOS but with a Vgss of 20 Volts.
Gastón On Monday, October 2, 2017 at 11:02:40 PM UTC-3, Robert L wrote: > > > A few nice things about this circuit... > > 1) It will work to slow start most any 5 - 12 V load (though possibly with > component value changes). > <https://lh3.googleusercontent.com/-3aZDh7W3s8U/WdLvocqhh5I/AAAAAAAAAXI/q50HrOVh9ZY9mkqPtd5aLjq_Svvt9gMKgCLcBGAs/s1600/ExtreameSlowStart%2B%2528Medium%2529.JPG> Onward... Bob -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/bd0de402-74e4-4cf4-bf87-b47ee91dbd8f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
