The educational video is about voltage source inverters (VSI) and current source inverters (CSI), where the author explains that while VSIs are more commonly used in AC motor drives, CSIs have traditionally been less familiar but are becoming more popular, particularly in grid interface applications and low inductance drives. The concept of duality in power electronics is emphasized, highlighting the trade-offs associated with each inverter type and how both can be suitable for various applications. The presentation touches upon the impact of wideband gap devices on the design and application of CSIs, suggesting a shift toward a more balanced use of both inverter types in the future.
