Zener diodes
Zener diodes are, special silicon diodes, used as voltage regulators and are put in reverse bias making them capable components for regulation of the output voltage against both variations in the input voltage from an unregulated power supply in the resistance of the load, they will conduct once they reach a certain value (zener voltage) they also have a given peak inverse voltage (PIV) that is specified at time of manufacture. When put in forward bias they operate as a standard diode. The forward bias voltage remains constant as current varies/changes to keep the voltage within the limits of the threshold zener action and the max power it can dissipate. Also note that the limits which are necessary for operation are that supply greater than zener voltage, and that zener current must greater than zener min and less than zener max.
Zener diodes are, special silicon diodes, used as voltage regulators and are put in reverse bias making them capable components for regulation of the output voltage against both variations in the input voltage from an unregulated power supply in the resistance of the load, they will conduct once they reach a certain value (zener voltage) they also have a given peak inverse voltage (PIV) that is specified at time of manufacture. When put in forward bias they operate as a standard diode. The forward bias voltage remains constant as current varies/changes to keep the voltage within the limits of the threshold zener action and the max power it can dissipate. Also note that the limits which are necessary for operation are that supply greater than zener voltage, and that zener current must greater than zener min and less than zener max.
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