Charging Infrastructure & DC–DC Converters – I | Buck, Boost & Buck–Boost Converters | Electric Vehicles | Lecture 04

In this lecture, we continue our study of DC–DC converters used in electric vehicle charging systems and onboard power electronics. The lecture begins with the Buck Converter operating in Discontinuous Conduction Mode (DCM), followed by a comprehensive analysis of the Boost Converter in Continuous Conduction Mode (CCM). Key concepts such as voltage conversion ratio, current relationship, inductor and capacitor design, and the effect of parasitic resistance are explained through step-by-step derivations. The lecture concludes with an introduction to the Buck–Boost Converter and its voltage conversion characteristics.

Topics Covered:

Buck Converter in Discontinuous Conduction Mode (DCM)
Boost Converter: Operating Principle
Continuous Conduction Mode (CCM) Analysis
Voltage and Current Conversion Ratios
Inductor Current Waveforms
Minimum Inductance Design
Output Capacitor Design
Effect of Inductor Resistance on Converter Performance
Introduction to Buck–Boost Converter
Voltage Conversion Ratio of Buck–Boost Converter

Who Should Watch?

B.Tech./M.Tech. students
Power Electronics learners
Electric Vehicle enthusiasts
GATE aspirants
Researchers and practicing engineers

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