The document outlines the design steps for three types of series voltage regulators. It lists the steps as: 1) selecting the zener diode, 2) selecting transistors, 3) selecting resistors, 4) considering stability factors and output impedance, and 5) calculating changes in output voltage. The three types are regular series regulators, ones with Darlington transistors, and ones with short circuit protection.

1. ECD
Unit - I
Prof. Suryakant P. Bhonge

2. Type1. Steps for Designing Series Voltage Regulator
1. Step-I: Selection of Zener diode
, Assume
,
2. Step-II: Selection of Transistor T2
3. Step-III: Selection of Resister R1, R2 & RD
&
,
&
4. Step-IV: Selection of Transistor T1
,
,
5. Step-V: Selection of Resistor R3
6. Step-VI: Selection of Stability factor & O/p impedance
7.Step-VII: Calculation of Change in O/p Voltage
&

3. Type2. Steps for Designing Series Voltage Regulator with Darlington transistor
1. Step-I: Selection of Zener diode
, Assume
,
,
2. Step-II: Selection of Transistor T2
3. Step-III: Selection of Resister R1, R2 & RD
&
,
&
4. Step-IV: Selection of Transistor T1
,
5. Step-V: Selection of Transistor T3
6. Step-VI: Selection of Resistor R3
7. Step-VII: Selection of Stability factor & O/p impedance
8.Step-VIII: Calculation of Change in O/p Voltage
&

4. Type III. Steps for Designing Series Voltage Regulator with Short Ckt. Protection
1. Step-I: Selection of Zener diode
, Assume
,
,
2. Step-II: Selection of Transistor T2
3. Step-III: Selection of Resister R1, R2 & RD
&
,
&
4. Step-IV: Selection of Transistor T1
,
5. Step-V: Selection of Resistor RSC
6. Step-VI: Selection of Resistor R3 (Short Ckt Protection)
7. Step-VII: Selection of Transistor T3(Short Ckt Protection)
Step-VIII: Selection of Stability factor & O/p impedance
&