Nedavno legg napisa:
A 2K2 gate resistor pretty much prevents fast enough switching to
> cause spikes. The fet swots it out, zener or no.
Yes, but from the PDF file in my first post:
"Despite the relatively slow switching, rather large voltage spikes can occur when the FET switches off. It is thus essential to connect a fast Zener diode (D5) across the FET for protection."