Overview
Overview
Applications of Resonant Converters
Reducing the size of a power converter, while maintaining high efficiency, has always been a challenge in the field of power electronics. Recent developments in power semiconductor technology have made it possible to increase the switching frequency of power converters to achieve high power density. But high-frequency switching inevitably increases switching loss which degrades the converter efficiency. Here comes the resonant converters with their inherent property of soft-switching like zero voltage switching (ZVS) and zero current switching (ZCS). These switching techniques reduce the switching loss significantly and thus enable both compact design and efficient operation. This has greatly motivated us to work towards the design, development, and fabrication of cutting-edge resonant mode power conversion systems (converter topologies and control techniques) for the following applications:
Wireless Power Transfer Systems
Electric Vehicle Charging Systems
Power Architecture for Data Centers
Power Supply for Medical Equipment
Power Supply for Space Applications
Power Management ICs
Power management ICs (PMICs) are used everywhere in our day-to-day applications starting from tiny blue-tooth headphones to big servers in data centers. State-of-the-art PMIC products employ buck, boost, or buck-boost converters, switched in the range of 1-5 MHz, where passives (inductors and capacitors) are used as external components. The limitations of this approach are twofold. Firstly, conventional converters operating at a few MHz cannot fulfill the ultimate dream of developing a "power system on chip (PwrSOC)" which will not require any external component. Secondly, ever-evolving application demands like high voltage step-down ratio point-of-load (POL) converters cannot be met by traditional power converter topologies. To address these limitations, we are working on different topologies and associated control techniques and also exploring various passive integration approaches. The following are a few power management application areas which we are currently focusing on:
Wearable Electronic Devices, Smartphones
POLs for 48V Server Power Architecture
Type-C USB Power Delivery
Multi-phase Voltage Regulators
DST INSPIRE Faculty Research Grant
Agency: Dept. of Science and Technology, Govt. of India
Role: PI, Amount: 35 L (INR), Duration: 5 yrs
Development of Power Supply for X-ray Generation
Agency: National Mission on Power Electronics Technology (NaMPET), MeitY, Govt. of India
Role: Co-PI, Amount: 114.8 L (INR), Duration: 3 yrs
Soft-switched AC-DC Flyback Converter for Type C USB Power Delivery Application
Agency: Texas Instruments India Pvt. Ltd.
Role: Co-PI, Amount: 2.0 L (INR), Duration: 1 yr
An Overview of Power Management Applications
Event: EE Summer School Tutorial Session
Organizer: EE Department, IISc Bangalore, Date: July, 2023, Duration: 1.0 hrs.
FPGA-based Control Platform Development for Power Converter Applications
Event: DST-SERB Sponsored High-End Workshop
Organizer: National Institute of Technology Karnataka, Surathkal, Date: Dec., 2022, Duration: 1.5 hrs.
Application of Resonant Converters in Grid Power Electronics Technology
Event: DST-SERB Sponsored High-End Workshop
Organizer: National Institute of Technology Karnataka, Surathkal, Date: Dec., 2022, Duration: 2.0 hrs.
Event: Faculty Development Program on "Role of Data Analytics, Machine learning and Power Electronics in Smart Grid and Electric Vehicle Technologies"
Organizer: Dayananda Sagar College of Engineering, Bangalore, Date: Sep., 2022, Duration: 2.0 hrs.
Event: National Workshop on "Grid Power Electronics Technology"
Organizer: IIITD&M Kancheepuram, Chennai, Date: Feb., 2022, Duration: 2.0 hrs.
Wireless EV Charging: An Application of Resonant Mode Power Conversion
Event: ATAL Faculty Development Program on "Challenges and Opportunities in Electric Vehicle Technology"
Organizer: AITS Autonomous University, Rajampet, Date: Dec., 2021, Duration: 2.0 hrs.
Event: ATAL Faculty Development Program on "Electric Vehicle Technology: Innovation & Challenges"
Organizer: National Small Industries Corporation (NSIC) Hyderabad, Date: Nov., 2021, Duration: 2.0 hrs.
Event: ATAL Faculty Development Program on "Smart Grid and Electric Vehicles"
Organizer: SASTRA University, Kumbakonam, Date: Oct., 2021, Duration: 2.0 hrs.
An Overview of Power Management in Server Application
Event: EECS Symposium, Indian Institute of Science (IISc) Bangalore
Organizer: EECS Division, IISc, Date: May, 2021, Duration: 20 mins
Automatic Resonant Frequency Tracking in Resonant Converters
Event: Faculty Development Program on "Research Opportunities, Challenges in Power Electronics for EV and Its Impact on Smart Grid"
Organizer: National Institute of Technology (NIT) Trichy, Date: Dec., 2020, Duration: 1.5 hrs.