MOD NOTE: Split from http://forum.allaboutcircuits.com/threads/circuits-with-diodes-ii.112991/#post-876709
Anyway, now I'm trying to workout a bit with zeners.
Let me know if I'm correct about zeners:
When we want to replace the zener by it's equivalent model, the attached picture is correct in terms of the batteries polarity?
That way I will use always a positive value for Vzener and the real sign will be determined by the batteries polarity.
And if I call Va, the voltage at zener's anode and Vk, the voltage at zener's cathode, can I say the follwoing:
Vk > Vz --> zener state
Va > Vk --> diode state (ON)
Va < Vk --> diode state (OFF)
Yes, I got that, but you said that was something missing... Was that that I was looking for!hi Psy,
We have said that you should always check your answer by using result in some way to verify the answer.
The manual plot of post #10 shows its OK.
Vd=5V when Vi/3 => 5V [diode On, conducting]
else
Vd = Vi/3 [diode Off, not conducting]
Anyway, now I'm trying to workout a bit with zeners.
Let me know if I'm correct about zeners:
When we want to replace the zener by it's equivalent model, the attached picture is correct in terms of the batteries polarity?
That way I will use always a positive value for Vzener and the real sign will be determined by the batteries polarity.
And if I call Va, the voltage at zener's anode and Vk, the voltage at zener's cathode, can I say the follwoing:
Vk > Vz --> zener state
Va > Vk --> diode state (ON)
Va < Vk --> diode state (OFF)
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