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Microcontroller Energy Management System

Summary: Researchers at Purdue University have developed a technology that utilizes two different forms of Random Access Memory (RAM) that increases performance and decreases energy usage simultaneously. By combining the efficient, unreliable Static Random Access Memory (SRAM) with the inefficient, reliable Ferroelectric Random Access Memory (FRAM), a new hybrid model was developed. This hybrid, combined with several built-in techniques to optimize the system, experimentally demonstrated a performance boost of up to two times and decreased energy usage of up to 20 percent over a high quality FRAM-based model. This could be used as a basis for improving performance in low power devices powered by energy harvesting sources.

Technology Benefits: Demonstrated up to two times better performance Simultaneously showed up to 20 percent reduction in energy useAvoids the negatives of the individual types of RAM

Technology Application: Smartphones Computers Televisions Other household appliances

Detailed Technology Description: Vijay RaghunathanPurdue Electrical and Computer EngineeringPurdue Embedded Systems Laboratory

Countries: United States

Application No.: N/A

*Abstract

*Background: By 2020, the Internet of Things (IoT) is expected to be comprised of approximately 50 billion devices worldwide. With the use of internet connected devices growing exponentially, different sources of energy are being tested in order to keep the IoT's footprint on the environment as minimal as possible. Different energy harvesting sources are in development, ranging from motion-related charging for smartphones to solar energy for various internet connected appliances around the household. However, energy harvesting is still in its early stage, and so, can only sustain low power IoT devices. This lack of power lessens the computational powers of a device, severely limiting its use.

*IP Issue Date: None

*IP Type: Provisional

*Stage of Development: Prototype testing validated

*Web Links: Purdue Office of Technology CommercializationPurdueInnovation and EntrepreneurshipVijay RaghunathanPurdue Electrical and Computer EngineeringPurdue Embedded Systems Laboratory

Country/Region: USA

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