A new method to mitigate the power fluctuations of electronic gadgets

Article from: India Science Wire

Indian researchers have developed performance analysis of miniaturized circuits used in modern devices such as mobile phones and tablets so that devices can be designed for better performance even under irregular DC power.

Indian researchers have developed performance analysis of miniaturized circuits used in modern devices such as mobile phones and tablets so that devices can be designed for better performance even under irregular DC power.

“There are a need to understand the design equations which take into account the miniaturized parts of mixed electronic circuits in order to improve the performance of the device and to reinforce the robustness of the components to power fluctuations ”, Says Dr Hitesh Shrimali, Associate Professor, School of Computer Science and Electrical Engineering, ITI Mandi. His research team analyzes losses due to fluctuations in the power supply to optimize the design specifications of mobile devices in terms of speed, power, gain, distortion levels, among others.

Electronic circuits in modern devices including mobile phones, laptops and tablets include botanalog h and digital components on a single semiconductor integrated circuit. Such mixed signal circuits are powered by a DC power supply, often from a built-in battery. Although these batteries have low voltages (3.7 V), the individual components of the miniaturized circuitry of mobile devices operate at even lower voltages. For example, the transistors used in many modern circuits are as small as 7 nanometers –100,000 times smaller than the width of a single human hair and requires voltages well below 1V to operate. Power spikes and fluctuations in the power source can degrade the performance of the combination circuit over time. So any fluctuation in the battery power can cause significant deterioration in performance. Circuit designs continue to use concepts developed 20 years ago and have not taken into account the altered physics seen at the nanoscale of modern electronic parts.

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“Very Large Scale Integration Electronics (VLSI) is ubiquitous in today’s world, although we are not aware of it”, Dr Shrimali said. Transceivers, antennas, amplifiers, analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) which are the core of commonly used devices such as mobile phones, digital music players, computers laptops and tablets require such optimizations in design to extend their lifespan and maintain the quality of performance over time.

“We have weed matrix and closed theoryform equations for transistors to analyze key design specifications for the design of electronics that uses VLSI’s miniaturized components ”, Explainsearchers. Published research will improve efficiencyy high-speed systems-on-a-chip, tHey added.

After developing the method, the team verified the proof of concept using two examples of output stages for analog and digital blocks in standard 180 nanometer technology with 1.8 V supply and the same geometric area. Their models using the inspection method and industry standard SPICE tools showed a maximum Mean Percent Error (MPE) of 3% for all examples, confirming the robustness of this approach in the design of electronic components. which are not affected by power fluctuations.

This study, Fby the Department of Electronics and Iinformation technology (MeitY), was recently published in IEEE Open Journal of Circuits and Systems. The research team consisted of Dr Hitesh Shrimali, IIT Mandi, researcher Vijendra Kumar Sharma, IIT Mandi, and Dr Jai NaRayan Tripathi from IIT Jodhpur. (Science Thread from India)

Dr Hitesh Shrimali (R) with his researcher, Vijendra Kumar Sharma (THE)

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