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విజ్ఞాన శాస్త్ర సాంకేతిక పరిశోధనా సంస్థ / विज्ञान शास्त्र प्रौद्योगिकी और परिशोधन संगठन
Events
Guest Lecture
Small-Scale Energy Harvesting: The Next Battery-Free Revolution summary lecture
Jan
29
Thursday
02:30
PM
- 04:30
PM
Summary
Small-Scale Energy Harvesting: The Next Battery-Free Revolution Small-scale energy harvesting is an emerging technology that enables electronic devices to operate without traditional batteries by capturing energy from their surroundings. Instead of storing power chemically, these systems convert ambient energy into usable electrical energy. Sources of Harvested Energy Common energy sources include: Solar and indoor light Thermal gradients (body heat or industrial heat) Mechanical motion and vibration Radio frequency (RF) signals from wireless communication Each source provides small but continuous power, ideal for low-energy electronics. Why Battery-Free Systems Matter Traditional batteries have limited lifespans, require replacement, and contribute to electronic waste. Battery-free devices: Reduce maintenance costs Enable long-term, autonomous operation Improve sustainability and environmental impact Allow deployment in hard-to-reach or hazardous locations Key Applications Small-scale energy harvesting is transforming: Internet of Things (IoT) sensors Smart buildings and infrastructure monitoring Wearable and medical devices Industrial and environmental monitoring These applications rely on ultra-low-power electronics that match the limited energy harvested.
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About Guest Lecture
Small-scale energy harvesting focuses on capturing tiny amounts of energy from the environment—such as light, heat, motion, vibration, and radio waves—to power low-energy devices without traditional batteries. Advances in ultra-low-power electronics and efficient energy converters are making it possible for sensors, wearables, and IoT devices to run autonomously for years or even indefinitely. This approach reduces reliance on batteries, cutting maintenance costs, electronic waste, and environmental impact. Key applications include smart sensors in buildings and infrastructure, medical implants, wearable tech, and remote monitoring systems where battery replacement is difficult or impossible. While challenges remain—such as intermittent energy supply and limited power output—ongoing innovation in materials, circuit design, and power management is rapidly closing the gap. Together, these developments position small-scale energy harvesting as a cornerstone of a future filled with self-powered, sustainable, and maintenance-free electronics.

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Venue
NB 214, N Block
Dept.of Physics
About Speakers
Dr. R. Rakesh Kumar
Associate Professor
Event Coordinator
Dr K V Madhuri
Professor
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