About the video
This lesson explores the functions and applications of rectifiers and inverters, key components in converting AC power to DC and vice versa. You’ll learn how rectifiers, using diodes, convert AC to DC power for devices like phone chargers and laptop power supplies. The video explains full-wave rectification and how capacitors smooth out the output. In contrast, inverters use transistors like IGBTs or MOSFETs to convert DC back to AC, essential for motor control and renewable energy systems. The lesson covers practical applications, including variable frequency drives (VFDs) for motor speed control and uninterruptible power supplies (UPS) for backup power. By understanding these devices, you gain insight into their critical role in modern electrical systems and technologies. To get started, go to the Lesson Content tab and click on the video.
About the quiz
Each lesson contains a video, and is followed up with a simple quiz. Quizzes review information discussed within the video, with each question providing an answer justification. Helping to reinforce correct answers and helps clarify any mistakes through code citations, excerpts, and explanations, so you can better understand the material.
Charges
Charges are rewards you earn for engaging in our learning system. You receive charges for completing both the video and the quiz in each lesson. The amount of charges available for each lesson is displayed in the “Lesson Features” box on the right. The charges you earn are based on the time it takes you to complete the lesson, which is also indicated in “Lesson Features.”