About Zener Diode Calculations

Zener diodes are special diodes designed to operate in reverse breakdown mode, maintaining a constant voltage across their terminals. They are commonly used in voltage regulation circuits.

Key Formulas

1. Zener Current (Iz):

\[I_z = \frac{V_{in} - V_z}{R}\]

2. Zener Power Dissipation (Pz):

\[P_z = V_z \times I_z\]

Where:

• Iz: Zener current
• Vin: Input voltage
• Vz: Zener voltage
• R: Series resistance
• Pz: Zener power dissipation

Important Considerations

• Ensure the input voltage is higher than the Zener voltage for proper operation.
• The series resistor limits the current through the Zener diode.
• Always check that the power dissipation is within the diode's specifications.