IIT Madras ANRF Webinar 2026: Can a Hall Bar Replace the Conventional Rectifier?
Tamil Nadu: IIT Madras will host the 15th talk in a webinar series highlighting completed research and development projects that have been supported through the Anusandhan National Research Foundation (ANRF), Government of India. The upcoming session will discuss "Rectifier-Free AC-to-DC Conversion Using a Hall Bar", an R&D project led by Prof. Prahallad Padhan of IIT Madras' Department of Physics.
The talk is scheduled for October 7, 2026, between 2:30 PM and 3:30 PM, and will focus on the project's outcomes and the research behind a new approach to converting AC to DC power.
IIT Madras ANRF Webinar: What Is the October 7 Talk About?
This is one of nine talks in a nine-month web series, in which Principal Investigators will present successfully completed R&D projects that have been funded under the ANRF's Core Research Grant (CRG) and Start-up Research Grant (SRG) schemes. The 15th talk in the series - titled "Rectifier-Free AC-to-DC Conversion Using a Hall Bar" - will feature Prof. Prahallad Padhan, Department of Physics, IIT Madras.
The main question behind this research is: Can an alternating electrical current be converted to a direct electrical current using a Hall Bar-based approach, and without requiring the use of a conventional rectifier? This topic brings together condensed-matter physics and electronic devices and power-conversion research.
IIT Madras Webinar 2026: Key Details
|
Particular |
Details |
|---|---|
|
Webinar Series |
ANRF-funded R&D Projects |
|
Talk |
Talk 15 |
|
Title |
Rectifier-Free AC-to-DC Conversion Using a Hall Bar |
|
Speaker |
Prof. Prahallad Padhan |
|
Department |
Department of Physics, IIT Madras |
|
Date |
October 7, 2026 |
|
Time |
2:30 PM to 3:30 PM |
|
Presentation |
45 minutes |
|
Discussion |
15 minutes |
|
Funding Framework |
ANRF CRG and SRG schemes |
Information sourced from the event announcement provided for the IIT Madras webinar.
What Makes a Rectifier-Free Approach Interesting?
AC-to-DC power conversion is fundamental to modern electronics. Many electronic systems ultimately require direct current to power devices even when the available electrical supply is alternating current. A conventional approach makes use of rectifier circuits to achieve this, and the October 7 research talk will explore a rectifier-free concept based on a Hall Bar.
The webinar is hence likely to be of interest to researchers, physics and electrical engineering students and faculty members, and other individuals following emerging work in the field of electronic and power-conversion technologies. Importantly, the announcement mentions the project as an innovative approach to the technology but does not claim the technology is ready to replace conventional rectifiers commercially. Readers should therefore treat the session as an opportunity to understand the research and its outcomes rather than an announcement of a market-ready alternative.
How Will the IIT Madras Session Be Conducted?
The one-hour session will follow the pattern of a 45-minute presentation and 15-minute discussion. The presentation will include coverage of the outcomes and insights of the project, and the discussion segment will offer participants the chance to engage with the research topic and explore the concepts outlined by the Principal Investigator.
This pattern also ties into the purpose of the web series: to bring completed academic research into a forum in which students and researchers and other members of the scientific research community can obtain direct knowledge of the work.
IIT Madras ANRF Webinar 2026: How to Join?
The session can be attended online by using the Zoom meeting link shared by IIT Madras:
- Zoom: us06web.zoom.us/j/83896178201
- YouTube: youtube.com/live/AlPfJ6T9f7y
A YouTube livestream link has also been provided for participants who wish to watch the session online.
Participants interested in emerging research should check with the event's official communication before the session for any last-minute access or schedule updates.
Why Students and Researchers Should Watch
The webinar offers more than an introduction to a specialised physics topic. For students, it can provide a glimpse into how fundamental research can be leveraged to create a technology-focused R&D project.For researchers and faculty members, the series can help highlight the kind of outcomes that emerge from ANRF's research-grant supported projects.
The larger takeaway from the announcement is perhaps the most interesting one: sometimes innovation begins by questioning a component that has been taken for granted for years. The October 7 session will explore what happens when such a question is asked for AC-to-DC power conversion.
FAQs
1. When is the IIT Madras ANRF webinar on Hall Bar AC-to-DC conversion?
The webinar is scheduled for October 7, 2026, from 2:30 PM to 3:30 PM.
2. What is the topic of IIT Madras Talk 15?
The title is “Rectifier-Free AC-to-DC Conversion Using a Hall Bar.”
3. Who is the speaker for the IIT Madras webinar?
Prof. Prahallad Padhan, Department of Physics, IIT Madras, will give the talk.
4. What is the ANRF webinar series at IIT Madras?
It is a nine-month, 23-talk series highlighting successfully completed R&D projects accomplished under the ANRF’s Core Research Grant and Start-up Research Grant schemes.
5. How long will the IIT Madras webinar last?
The webinar will be one hour long consisting of a 45-minute presentation and 15 minutes of discussion.
6. What is a Hall Bar in the context of this research?
The Hall Bar is the device structure that is currently being explored in the project for a rectifier-free AC-to-DC conversion approach. The technical intricacies and project results will be discussed in the webinar.
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