1. Design and Analysis of Voltage
Commutated DC-DC Chopper
1
Guided By:
Miss. Chandni A. Parmar
Assistant Professor, Electrical Dept
MAHATMA GANDHI INSTITUTE OF TECHNICAL EDUCATION
& RESEARCH CENTRE, NAVSARI
Prepared By:
Charaniya Atmik 130330109008
Khokhar Darshan D. 130330103013
Dholariya Hardik H. 130330109018
Malaviya Prashant J. 130330109037
Patel Harshil B. 130330109065
A Presentation on

2. Flow of Content
 Introduction
Block diagram
Simulation & Results
Hardware
Advantage & Disadvantage
Applications
Reference

3. INTRODUCTION
DC-DC Converter
Basically Static Power Electronics device
Convert Fix DC to Variable DC
Depend on DC Voltage Source
Performance Improved by Variable DC Supply

4. BLOCK DIAGRAM

5. Circuit Diagram

6. Component
• Transformer
• Diode
• Capacitor
• Voltage Regulator
• Opto-coupler
• Microcontroller

7. Simulation and Result

9. Operation
• Mode-1

10. • Mode-2

11. • Mode-3

12. • Mode-4

13. • Mode-5

14. Advantages and Disadvantages
 Provide good commutation
 It give fast response
 Output voltage controlled by varying chopper
frequency in circuit.
 This can be used for control of DC series and Shunt
motors
This circuit require a high PIV.

15. Applications
DC motor speed control
Battery chargers
Battery operated electric cars
DC voltage boosting
Switched capacitor filter

16. Reference
• International Journal of Science and Research (IJSR)
• https://en.wikipedia.org/wiki/Chopper_(electronics)#
Applications
• http://www.electrical4u.com/chopper-dc-to-dc-
converter/