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Zener Diode & Zener Voltage Regulator Calculator

Zener Diode & Zener Voltage Regulator Calculator

Zener Diode & Zener Voltage Regulator Calculator

Formulas and Equations for Zener Diode & Zener Voltage Regulator Calculator

Series Current

IS= VIN – VZ / RS….. (Ohm’s Law Again)

Load Voltage

VVZ

Change in Load Voltage

∆VL = IZ x RZ

Output (Regulated) Voltage

VOUT= VIN – IR = VIN – (IZ + IL) / RS = (VIN – IS) / RS

Load Current

IL = VL / RL

Zener Current

IZ = IS – IL

Output ripple

VR (OUT)  VR (IN) x (RZ/RS)

Maximum Series resistance

RS (MAX) = RL (MIN) x [(VIN (MIN) / VZ) -1]

Maximum Series resistance

RS (MAX) = RL (MIN) x [(VIN (MIN) – VZ) / IL(MAX)]

Or Series Resistance

RS = (V– Vout) / (IZ + IL= (V– Vout) / (IS)

Value of Resistor

R = [(VIN (MIN)– VOUT) / (IL + 10)]

Power of Resistor

RP = (VIN (Max)– Vout) 2­­ / R

Power of Zener Diode

ZP = (VIN(MIN) – VOUT) / R) x VOUT

Enter value and click on calculate. Result will be displayed.

Enter your values:
Max Input Voltage (VIN (Max)):      Volts
Min Input Voltage (VIN (Min)):      Volts
Output Voltage (VOut):      Volts
Load Current (IL):      mAmp
      
Zener:     Volts Zener Power:     Watts
Resistance:     (Ω) OhmsResistance Power:     Watts

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4 Comments

  1. Nucky P.rayanta Natalius says:

    Wowss Good brother ..

    1. Electrical Technology says:

      Thanks for appreciation :)

    2. Murthy Challa says:

      Very nice, useful and instant calculation. ThanQ

  2. Ripudaman says:

    To calculate Vout , we need Rs
    VOUT= Vin – Ir = Vin – (Iz + IL) / Rs = (Vin – Is) / Rs

    and then to calculate Rs We need V out again

    RS = (VL – Vout) / (IZ + IL) = (VL – Vout) / (IS)

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