Chips run by light, heat and vibration

The chip can be permanent, never requires energy from batteries or batteries, is a new invention of the Massachuset Institute of Technology (MIT). This chip can be widely applied in industry, medicine and life.

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Scientists at MIT have taken an important step in making a sensor that doesn't use internal energy sources like batteries or batteries, according to the scientific news website Physorg. Saurav Bandyopadhyay, MIT's Head of Electronics and Electrical Engineering has created a chip capable of gathering energy from the surrounding environment such as light, heat and vibrations.

This chip uses some previous research results. The scientist at MIT's scientist Anantha Chandrakasan found a way to get electricity from three different sources, namely light, heat and vibration. In the new project, the scientist combined the ability to extract energy from the above sources into a microchip while increasing the efficiency of the energy source.

MIT's new chip has very high applicability in many industries.

This newly built chip can capture energy from a walking body, or from the difference between human body temperature and the surrounding air. Such chip sensors can be used to capture the human body's activity parameters such as heart rate, blood sugar, and operate in infinite time. When installing these sensors on bridges, roads or oil pipes to obtain structural state information, they can get energy from vibrations caused by traffic or oil.

According to the developers, the main complexity lies in the design of the chip's electrical scheme so that it can simultaneously handle many different power sources of power. Usually, this problem is solved by automatically selecting which source has the largest capacity.

MIT's new chip has very high applicability in many industries.

According to Bandyopadhyay, this method is less effective because the energy of the remaining sources is useless."We have found a way to acquire energy from all sources at the same time , " Bandyopadhyay said. This is done using capacitors to store electricity from other sources while the main source is being used for operation.

The second task is to minimize the energy consumption of the IC. Usually the power supply is done via batteries or high capacitance capacitors. Energy comes to them first, then new to the main circuit. Bandyopadhyay makes the circuit work directly with the energy source. According to him, this greatly increases energy efficiency.

"The Massachuset Institute of Technology scientists have done an important work - David Freeman, a technology expert at Texas Instruments, commented after studying the results of the work - these advances can be The ability to collect power from a variety of sources helps maximize capacity and create more functional wireless sensors. "

The work of the scientists is sponsored by the Interconnect Focus Center program of the National Defense Research Projects Agency (DARPA) of the US Department of Defense. The research results will be published in the upcoming issue of Solid-State Circuits.

Reference: Gizmag