Mon Sep 22 05:00:57 UTC 2025: Here’s a summary of the provided text and a news article based on it, written from an Indian perspective:
**Summary:**
Researchers at the Indian Institute of Science (IISc) in Bengaluru, in collaboration with Delta Electronics India, have developed a novel and more efficient fast-charging solution for electric vehicles (EVs). This system, based on a cascaded H-bridge (CHB) multi-port DC converter, connects directly to the medium-voltage AC grid, eliminating the need for bulky and inefficient line frequency transformers used in conventional charging stations. The technology boasts improved energy efficiency, bi-directional charging capabilities (allowing energy to flow back to the grid), local energy storage integration, and compatibility with renewable energy sources. It can potentially revolutionize EV charging infrastructure and have applications in other sectors like data centres, wind energy, and railway traction.
**News Article:**
**IISc Bengaluru Unveils Game-Changing EV Fast-Charging Technology**
*Bengaluru, September 22, 2025* – Indian researchers at the Indian Institute of Science (IISc), Bengaluru have made a significant breakthrough in electric vehicle (EV) charging technology, potentially paving the way for a faster, more efficient, and sustainable EV ecosystem in India.
The IISc team, in collaboration with Delta Electronics India, has developed a novel fast-charging solution based on a cascaded H-bridge (CHB) multi-port DC converter. This innovative system eliminates the need for the bulky and costly line frequency transformers currently used in conventional EV charging stations.
“Conventional charging stations involve multiple stages of energy conversion, increasing costs and reducing efficiency,” explained Dr. Kaushik Basu, Associate Professor at IISc and lead author of the study. “Our invention simplifies this process and offers a 3-5% improvement in energy efficiency. This translates to significant cost savings and a smaller environmental footprint, crucial for India’s rapidly growing EV sector.”
The new converter connects directly to the medium-voltage AC grid, allowing for faster charging times and reduced energy losses. Crucially, the system also supports bi-directional charging, allowing EVs to feed power back into the grid during peak demand or emergencies. This capability could significantly improve grid stability and resilience, especially in urban areas facing increasing power demands.
“This bi-directional capability is a game-changer,” says Harisyam P.V., PhD student at IISc and first author of the study. “The solution is much smaller and more compact compared to existing solutions.”
Beyond faster charging, the technology also facilitates local energy storage, allowing charging stations to store energy from renewable sources like solar panels. This enables more sustainable EV charging and reduces reliance on the grid during peak hours.
According to IISc, the technology has potential applications beyond EV charging, including next-generation data centres, wind energy systems, and railway traction. This versatility underscores the broader impact of this Indian innovation on the global energy landscape. The team is currently working on scaling up the system for higher power loads, with plans for commercialization in the near future. This breakthrough could significantly accelerate the adoption of EVs in India and contribute to a cleaner, more sustainable future.
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