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Full-Wave Rectifiers | Chapter 4

In this video, we cover Chapter 4 of Power Electronics, which focuses on Full-Wave Rectifiers and their role in efficient AC-to-DC power conversion. We begin by introducing the basic idea of full-wave rectification and explain how these circuits utilize both halves of the AC input waveform to deliver higher average output voltage and improved efficiency compared to half-wave rectifiers. The chapter examines common full-wave rectifier topologies, including center-tapped configurations and bridge rectifiers, highlighting their operating principles and practical differences. The analysis then extends to different load conditions, including resistive (R) and resistive-inductive (RL) loads, showing how inductance influences current continuity, ripple, and energy transfer. We also study the effects of freewheeling diodes and how they improve load current behavior and reduce stress on circuit components. Key performance metrics such as output voltage, current waveforms, ripple, and power delivery are derived and visualized throughout the chapter. PSpice simulations are used extensively to validate analytical results and provide clear insight into real circuit behavior. By the end of this video, you will understand how full-wave rectifiers operate, why they are preferred in most practical DC power supplies, and how load characteristics and circuit topology impact overall performance.