Inverters | Chapter 8 скачать в хорошем качестве

Inverters | Chapter 8

In this video, we explore Chapter 8 of Power Electronics, which focuses on inverters—circuits that convert DC power into AC power with controlled amplitude and frequency. We begin with the basic inverter topologies, including half-bridge and full-bridge converters, and explain how simple switching schemes generate square-wave AC outputs. The chapter then applies Fourier series analysis to study harmonic content and total harmonic distortion (THD) in inverter waveforms. The video continues with techniques for amplitude and harmonic control, introducing pulse-width modulation (PWM) as a powerful method for producing high-quality AC waveforms. Both bipolar and unipolar switching strategies are examined, along with their impact on harmonics and filtering requirements. More advanced topics include multilevel inverters, which generate multiple voltage levels to reduce harmonic distortion and improve efficiency, as well as three-phase inverter operation and its importance in motor drive applications. Practical examples such as Class D audio amplifiers are also discussed to connect theory with real-world systems. Throughout the chapter, PSpice simulations are used to visualize switching behavior, harmonic spectra, and output waveforms. By the end of this video, you’ll understand how inverters synthesize AC power from DC sources and why they are essential in applications such as motor drives, renewable energy systems, and power electronics-based control systems.