Hi fellows,
I am trying to understand what happens when the two terminals of a diode are shorted.
First let me tell my understanding, the diode in open circuit conditions has a depletion region at the junction. This depletion region creates a electric field because of the ionic nature of matter present at the junction. This field in turn forms a voltage potential (ppl loosely speak this voltage to be 0.7V for P-N junction diodes. I am not sure of the exact value though).
Now my question is, if I short the diode terminals, the voltage difference should drop down to zero. Does it mean the field collapses and there is no more depletion region????? (OR) Does the depletion region potential acts kind of a battery and drives current through the terminals, then make the potential zero?????
I think the possibilities I listed looks crazy and not convincing but I am unable to pin point the exact process as to what happens when the diode terminals gets shorted. Pls let me know what happens to the depletion region under this condition also...
I am trying to understand what happens when the two terminals of a diode are shorted.
First let me tell my understanding, the diode in open circuit conditions has a depletion region at the junction. This depletion region creates a electric field because of the ionic nature of matter present at the junction. This field in turn forms a voltage potential (ppl loosely speak this voltage to be 0.7V for P-N junction diodes. I am not sure of the exact value though).
Now my question is, if I short the diode terminals, the voltage difference should drop down to zero. Does it mean the field collapses and there is no more depletion region????? (OR) Does the depletion region potential acts kind of a battery and drives current through the terminals, then make the potential zero?????
I think the possibilities I listed looks crazy and not convincing but I am unable to pin point the exact process as to what happens when the diode terminals gets shorted. Pls let me know what happens to the depletion region under this condition also...