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Advanced Transformerless Inverter Topologies and Application
Published 9/2026
Created by Purankumar Gajera
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Level: All Levels | Genre: eLearning | Language: English | Duration: 17 Lectures ( 2h 19m ) | Size: 3.7 GB
Master Transformerless Converter Topologies, Grid-Connected Inverters, Buck/Boost Operation, Leakage Current and DC Curr
Note: Author is updating lectures
What you'll learn
Explain the fundamental principles and operating concepts of transformerless power electronic converters and grid-connected inverters. Analyze and compare different transformerless inverter topologies, including capacitor-based, common-ground, and inductor-based architectures. Understand the operation of Buck, Boost, and Buck/Boost transformerless converter topologies and analyze their energy-flow paths and switching modes. Identify the major causes of DC current injection in grid-connected transformerless inverters and understand their impact on system performance and power qualitRequirements
No prior experience with transformerless converters is required.Description
"This course contains the use of artificial intelligence."
Welcome toAdvanced Transformerless Power Electronics Converters, a specialized course designed to provide a clear and practical understanding of modern transformerless power-conversion technologies and grid-connected inverter architectures.
Power electronics plays a critical role in renewable-energy systems, photovoltaic generation, distributed generation, battery systems, electric mobility, and modern electrical grids. Transformerless converter and inverter topologies are particularly important because they can enable high efficiency, reduced size, lower weight, reduced cost, and high power density. However, eliminating the transformer also introduces important challenges related to leakage current, common-mode behavior, switching stress, power quality, grounding, and DC current injection.
This course takes you step by step through these important concepts and helps you understand not onlyhow transformerless converters work, but why different topologies are developed and what engineering problems they are intended to solve.
You will explore the evolution of transformerless power-electronic converters and study differentcapacitor-based, common-ground, and inductor-based architectures. The course explains the operating principles, energy-flow paths, switching modes, and practical characteristics of advanced converter topologies.
You will also learn aboutBuck, Boost, and Buck/Boost transformerless operation, including how inductors and capacitors participate in energy transfer and how topology selection affects converter performance. Particular attention is given to flying-inductor and common-ground architectures and their ability to address limitations found in conventional transformerless designs.
A major focus of the course isDC current injection and DC current rejection in grid-connected transformerless inverters. You will understand how unwanted DC components can originate from different parts of a practical converter system and why accurate detection and rejection are important for reliable grid-connected operation.
The course introduces and compares several DC current rejection approaches, includingsensor auto-calibration, DC-link current sampling, double-integration techniques, resonant-circuit detection, bridge-leg voltage differential methods, physical capacitor blocking, virtual capacitor approaches, and intelligent algorithmic techniques.
You will also develop an understanding of practical error sources such as switching asymmetry, dead time, semiconductor characteristics, sensor errors, ADC limitations, signal-conditioning errors, and grid-voltage offsets. This provides a system-level perspective of how small errors can accumulate and influence the final performance of a grid-connected converter.
Throughout the course, emphasis is placed on understandingcircuit diagrams, operating modes, waveforms, energy-flow mechanisms, topology comparisons, efficiency considerations, component stress, leakage current, common-mode behavior, and DC current rejection.
What makes this course valuable?
Rather than focusing only on theoretical definitions, this course emphasizes the engineering reasoning behind transformerless converter development. You will learn to compare topologies, understand their advantages and limitations, and recognize the trade-offs involved in selecting a suitable architecture for a particular application.
Whether you are an electrical or electronics engineering student, researcher, faculty member, renewable-energy professional, power-electronics engineer, or someone interested in advanced grid-connected inverter technology, this course can help strengthen your technical foundation and broaden your understanding of modern power conversion.
Who should take this course?
This course is suitable for electrical engineering and electronics engineering students, postgraduate students, researchers, faculty members, power-electronics engineers, renewable-energy professionals, PV-system engineers, and other technical professionals interested in transformerless converters and grid-connected inverter technologies.
A basic understanding of electrical circuits and power electronics is recommended, but no previous experience with transformerless converters is required.
Join the course and explore the evolution, operation, challenges, and solutions associated withadvanced transformerless power-electronic converters.
Learn the topology. Understand the energy flow. Analyze the challenges. Explore the solutions. Build your expertise in advanced transformerless power electronics.
Who this course is for
This course is designed for electrical engineering and electronics engineering students who want to develop practical knowledge of advanced transformerless power electronic converters and grid-connected inverters.Homepage
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