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Zener impedance is calculated, like anything else, with Ohm's law. Take voltage and divide by current, and you get resistance (or impedance).
The only thing special about a zener is that it is not linear, and you can not expect the impedance to remain the same if you change the voltage or current. In fact, the primary characteristic of a zener is that the voltage is relatively constant over the specified current range so, in effect, the zener is a dynamic resistor or, more correctly, a mostly-independent voltage load.
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What is Zener resistance of the Zener diode?
zener resistance of a zener diode is the resistance of the zener diode but which is the resistance of a diode
When current through a zener diode increases by a factor of 2 by what factor does the voltage across the zener diode increase?
If the zener diode is in zener breakdown the voltage across the zener diode remains constant regardless of current (for the ideal zener diode). Real zener diodes have parasitic resistance that causes the voltage across the zener diode to increase slightly with increased current, but due to temperature dependant variations in this parasitic resistance as well as temperature dependant variations in the zener breakdown voltage, this change in voltage in real zener diodes cannot be described by a simple linear factor.
Does a zener diode acts as a switch?
A zener diode cannot be used as switch.
Why the zener current taken five times the load current in zener diode as voltage regulator?
A: There is no X times current for a zener to regulate. The real limit is the zener power dissipation that determine the total current since the zener to regulate must carry its own breakdown current in addition to the load current when the load is absent . IF this is not taken in consideration the zener will surely burn out
What is the forward voltage of a silicon based zener diode?
It would be 0.7V, the same as any other silicon diode; except for one thing, most zener diodes are manufactured with a reversed diode in series with them. When the zener is operated in its normal zener breakdown mode this reversed diode conducts, letting the zener operate. When the zener is operated in its forward biased mode this reversed diode prevents conduction. Thus most zeners have no forward voltage.
What is Zener resistance of the Zener diode?
zener resistance of a zener diode is the resistance of the zener diode but which is the resistance of a diode
How do you find the value of a zener diode?
It is depend on your requirement .suppose you need a voltage regulator of 5V than you need 5V Zener diode.
How you can find real and imaginary parts of impedance if impedance and angle is given?
Real part = (magnitude of total impedance) x (cosine of the angle) Imaginary part = (magnitude of total impedance) x (sine of the angle)
Who invented the zener diode?
Dr. Clarence Melvin Zener of Southern Illinois University invented the zener diode.
Who discovered the electrical property of zener diode?
charles zener
When was Clarence Zener born?
Clarence Zener was born in 1905.
When did Clarence Zener die?
Clarence Zener died in 1993.
When was Karl Zener born?
Karl Zener was born in 1903.
When did Karl Zener die?
Karl Zener died in 1964.
When was Eric Zener born?
Eric Zener was born in 1966.
What is the difference between an ideal zener diode and practical zener diode?
Zener diode is heavily doped pn junction diode.
When current through a zener diode increases by a factor of 2 by what factor does the voltage across the zener diode increase?
If the zener diode is in zener breakdown the voltage across the zener diode remains constant regardless of current (for the ideal zener diode). Real zener diodes have parasitic resistance that causes the voltage across the zener diode to increase slightly with increased current, but due to temperature dependant variations in this parasitic resistance as well as temperature dependant variations in the zener breakdown voltage, this change in voltage in real zener diodes cannot be described by a simple linear factor.
