On Mon, Aug 19, 2019 at 04:21 PM, Chuck Harris wrote:
A properly functioning colloquially named zener diode will
have a forward conducting knee of 0.5-0.7 volts, and a reverse
conducting knee at the published zener voltage.
Any voltage below the conduction knee will result in little or
no current flow.
I think you are describing a bad zener, which could easily stop
your supply from bootstrapping.
-Chuck Harris
Chuck,
Since I cannot tell what the original Zener or avalanche voltage was on this part, I am calling it a Zener. I understand that these diodes over a certain voltage (about 6V) are not truely Zeners, but are actually avalanche diodes, This is something that I just learned regarding what is popularly called a "zener" Diode. It is possible to clearly see the difference in the curve tracer. As you say, Zener is the name they have been given, i suppose in the same way we call all facial tissues "Kleenex"? Strange that they used the same schematic symbol for both.
Thank you so much!
--
Michael Lynch
Dardanelle, AR
Mlynch001