Lecture #6 Power Supplies (Voltage Regulators) Instructor: Dr. Ahmad El-Banna November 2014 J-601-1448 Electronic Principals Integrated Technical Education Cluster At AlAmeeria‎ © Ahmad El-Banna

Agenda 2 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna Introduction General Filter Considerations Discrete Transistor Voltage Regulator IC Voltage Regulators

INTRODUCTION 3 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

Introduction 4 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna Block diagram showing parts of a power supply.

GENERAL FILTER CONSIDERATIONS 5 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

Ripple Voltage 6 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

Capacitor Filter 7 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

RC Filter 8 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

DISCRETE TRANSISTOR VOLTAGE REGULATOR 9 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

Series Voltage Regulator 10 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

Shunt Voltage Regulator 11 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

IC VOLTAGE REGULATORS 12 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

Three-Terminal Voltage Regulators 13 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna • Fixed-Positive-Voltage Regulators

14 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna • Fixed-Negative-Voltage Regulators

Adjustable-Voltage Regulators 15 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna

• For more details, refer to: • Chapter 15, Electronic Devices and Circuits, Boylestad. • The lecture is available online at: • https://speakerdeck.com/ahmad_elbanna • For inquires, send to: • ahmad.elbanna@feng.bu.edu.eg 16 J-601-1448 , Lec#6 , Nov 2014 © Ahmad El-Banna