Hi, i was reading up on the the zener diode on the website allaboutcircuits.com...and im confused about why is it operated in the reverse bias and not in forward bias?
(Following was given for forward bias of the diode)
Quoting from the text, "
If the power supply voltage were to be increased, the resistor's voltage drop would increase almost the same amount, and the diode's voltage drop just a little. Conversely, a decrease in power supply voltage would result in an almost equal decrease in resistor voltage drop, with just a little decrease in diode voltage drop. In a word, we could summarize this behavior by saying that the diode isregulating the voltage drop at approximately 0.7 volts."
Does this mean that suppose if 0.8 v is supplied to the circuit, then voltage drop across the zener will be 0.7v and across resistor will be0.1v? If so, then suppose 0.6 v was supplied. Then how will the voltage drop be distributed across the zener and the resistor?
Thanks in advance.
(Following was given for forward bias of the diode)
Quoting from the text, "
If the power supply voltage were to be increased, the resistor's voltage drop would increase almost the same amount, and the diode's voltage drop just a little. Conversely, a decrease in power supply voltage would result in an almost equal decrease in resistor voltage drop, with just a little decrease in diode voltage drop. In a word, we could summarize this behavior by saying that the diode isregulating the voltage drop at approximately 0.7 volts."
Does this mean that suppose if 0.8 v is supplied to the circuit, then voltage drop across the zener will be 0.7v and across resistor will be0.1v? If so, then suppose 0.6 v was supplied. Then how will the voltage drop be distributed across the zener and the resistor?
Thanks in advance.