Zener Diode Clipping Graph Help

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In summary, the conversation discussed Zener Diodes and their behavior in an electronics course. The speaker had trouble interpreting the graph and understanding why the measured voltage was 0.7V after clipping in the negative cycle. The other person explained that the sign of the measured voltage can be chosen and if the forward voltage is +0.7V, the reverse voltage will be -6.2V.
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Ronaldo95163
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So we started looking at Zener Diodes in our electronics course.
What I am having trouble with is the interpretation of the graph.

For the example our diode has a Zener Voltage is 6.2V. I understand what happens in the positive half but when the direction changes is where I get confused.

Why is the pd across the diode 0.7V after clipping? If the polarities switch on the negative cycle of the input signal why would it be -0.7V and not 0.7V?
 

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Ronaldo95163 said:
If the polarities switch on the negative cycle of the input signal why would it be -0.7V and not 0.7V?
Well, you are the one to decide the sign of the measured voltage.

So if you choose the forward voltage to be +0.7V, the reverse voltage will be -6.2V.

2000px-Kennlinie_Z-Diode.svg.png
 
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Related to Zener Diode Clipping Graph Help

1. What is a Zener Diode Clipping Graph?

A Zener Diode Clipping Graph is a graphical representation of the voltage-current relationship of a diode in a clipping circuit. It shows the behavior of the diode when it is conducting and when it is in reverse bias.

2. How does a Zener Diode Clipping Graph help in circuit design?

A Zener Diode Clipping Graph helps in circuit design by providing information on the voltage drop and current flow through the diode. This allows engineers to select the appropriate diode and design the circuit to meet the desired voltage requirements.

3. What is the purpose of clipping a signal using a Zener Diode?

The purpose of clipping a signal using a Zener Diode is to limit the amplitude of the signal. This is often used in audio and video circuits to prevent distortion and protect the components from excessive voltage.

4. How do you interpret a Zener Diode Clipping Graph?

To interpret a Zener Diode Clipping Graph, you need to look at the voltage axis to see the voltage drop across the diode and the current axis to see the amount of current flowing through the diode. The point where the curve starts to flatten out is the breakdown voltage, which is the voltage at which the diode starts conducting in reverse bias.

5. What is the difference between Zener Diode Clipping and Zener Diode Regulation?

Zener Diode Clipping is used to limit the amplitude of a signal, while Zener Diode Regulation is used to maintain a constant voltage across a circuit. In clipping, the diode is used in series with the signal, while in regulation, the diode is used in parallel with the circuit. Additionally, Zener Diode Clipping uses a Zener diode with a breakdown voltage close to the desired clipping voltage, while Zener Diode Regulation uses a Zener diode with a breakdown voltage slightly higher than the desired regulated voltage.

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