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Tuesday, September 21 • 9:00am - 12:00pm
Pre-Conference Symposium: Energy Harvesting Enters the Mainstream to Power the IoT

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Energy harvesting (EH) has graduated from emerging to have fully-emerged for supporting a whole host of industry applications, but particularly for applications in the ultra-low power (ULP) space such as for IoT/IIoT, wearable, and wireless sensor network (WSN) use-cases. We now have the ability to scavenge ambient power from every form of energy physics affords us. An ever-growing ecosystem (a.k.a. – Power IoT ecosystem) of EH transducers, power management solutions, integrated sensors, energy storage, networking SoCs, and ULP system components are enabling us to free ourselves from wires and even primary (i.e. – non-rechargeable) batteries. This half-day workshop shall cover a snapshot survey of some leading technology contributors in this space as well as key, supporting resources necessary to pragmatically enable EH integration and bring 1 T, self-powered sensors to mainstream, ubiquitous deployments.

Speaker: Talha Karwa, Energy Harvesting Engineer, Xidas
Title: Extending wireless IoT sensor life to 10+ years without battery replacements – Predictive Maintenance Use-case
Description: As the demand for data analytics about the physical world grows every year, more companies are integrating wireless IoT sensors to monitor activities of machines and the environment around them. However, the main concern with wireless sensors remains the battery lifetime and cost of replacement. Wireless sensor manufacturers often promote 5+ years of battery life, but with the caveat of a few measurements a day, resulting in missed data, particularly for predictive monitoring applications. This talk will discuss the exciting convergence of a suite of energy harvesting solutions that combine a vibrational energy harvester, Power Management IC (PMIC), energy storage, and wireless IoT interface to enable the reality of extending battery replacements to 10+ years. Whether the sensor uses LoRa or WiFi wireless communication standard, Xidas is leveraging energy harvesting from machine vibrations to demonstrate how intelligent autonomous sensors can considerably improve IoT wireless sensor node power budgets while still having high-rate monitoring for use in an industrial setting.

Speaker: Dan Stieler, President, PowerFilm, Inc.
Title: Practical Design Consideration for Energy Harvesting with Solar
Description: As with any design details matter. In this session we will dive into various aspects of designing an effective solar energy harvesting system. Specifically we will discuss differences between indoor and outdoor light, how efficiency is determined and why high efficiency may not mean more power, PMIC features that optimize solar energy collection, and properly sizing your PV.

Speaker: Geoffrey Gosset, CEO & Founder, e-peas
Title: Power Management IC (PMIC): The Brain of the Self-Powered, IoT Evolution
Description: Harvesting energy from different sources such as small size photovoltaic cells (light), thermoelectric generators (thermal gradients), piezo and electromagnetic harvesters (vibration) or antennas (radio frequency) is made possible today thanks to dedicated energy harvesting power management ICs or PMICs. Indeed, power generated by EH transducers comes in various forms, AC or DC with voltages from a few tens of millivolts to several volts and currents varying from microamps to several hundreds of milliamps, constantly changing depending on the environmental conditions. The varying nature of the power generated by EH transducers also means the energy should be captured in storage elements capable of delivering the energy only when it is demanded by the load. This makes PMICs dedicated to energy harvesting a central piece of self-powered, IoT, and/or autonomous systems and explains why selecting one carefully and properly implementing its features is of top design importance. This presentation will highlight the parameters you should pay attention to when selecting your EH PMIC, with a particular focus on best practices associated with each EH source and design tips for fast implementation on the bench.

Speaker: Patrick Mercier, Associate Professor & Co-Director, Center for Wearable Sensors, University of California, San Diego
Title: Energy Harvesting and Self-Powered Sensing for Next-Generation 'Unaware-ables' and IoT
Description: Wearable and IoT devices hold considerable promise to diagnose, monitor, and treat various medical conditions and/or track the real-time status of humans, industrial plants, homes, or general environments. However, most current generation devices only monitor a limited number of parameters that are, in many cases, only peripherally related to many health conditions or enterprises. Furthermore, many such devices are large, bulky, and rigid, thereby precluding seamless integration into daily life, or offer poorer-than desired battery life, requiring expensive re-charge or replacement activities.
Addressing these issues requires: 1) development of new sensor technologies that provide more actionable data; 2) engineering of supporting electronic infrastructure to condition, digitize, and wirelessly communicate data in an extremely energy efficient manner; and 3) inclusion of energy harvesting solutions that will enable operation over ideally infinite time periods without having to recharge or replace batteries. This presentation will discuss emerging sensor technologies that can non-invasively monitor physiochemistry (e.g., glucose, blood alcohol concentration, and lactate), integrated circuit building blocks and architectures that make acquisition and telemetry of sensed information energy-efficient, and multi-modal energy harvesting solutions that combine power from multiple sources, including a look at biofuel-cell harvesters. Such net-zero-power operation will ultimately enable devices that are completely autonomous and invisible to the user, to the point where users are virtually unaware of their wearable devices after placement – in other words, they are “unaware-able” devices, with imaginable extensions to general IoT applications.

BONUS: Real-time, Functional, Interactive Demo Session
Please hang around after the symposium for the first ~30 min of your lunch time for a BONUS demonstration of technologies as our symposium presenters (and perhaps some extra bonus additions) give some real-time, functional demonstrations of energy harvesting solutions.  Come see real HW & SW run off ambient energies before your eyes and get inspired to help drive your own applications and use-case scenarios!

avatar for Brian Zahnstecher

Brian Zahnstecher

Principal, PowerRox
Brian Zahnstecher is a Sr. Member of IEEE, Chair of IEEE SFBAC Power Electronics Society (PELS), sits on Power Sources Manufacturers Association (PSMA) Board of Directors, is Co-founder & Co-chair of PSMA Reliability Committee, Co-chair of PSMA Energy Harvesting Committee, and is... Read More →

avatar for Talha Karwa

Talha Karwa

Energy Harvesting Engineer, Xidas, Inc.
Since joining the Xidas team in February 2020 as an electrical engineer, I have had the privilege of expanding my knowledge and skill sets. I have assisted in several company projects, including testing of the micro-relay, micro-fluidics simulations, and most recently, working on... Read More →
avatar for Dan Stieler

Dan Stieler

President, PowerFilm, Inc.
Dan became President of PowerFilm in 2016 after a series of roles in engineering and R&D. He received his EE PhD from Iowa State University in 2008.  In addition to his role as President Dan continues to lead research on both solar materials and electronics.  Materials research... Read More →
avatar for Geoffroy Gosset

Geoffroy Gosset

CEO & Co-Founder, e-peas
Geoffroy Gosset is a CEO at e-peas. He received the Industrial Engineering degree from the Ecole Centrale des Arts et Metiers (ECAM), Belgium, in 2005, after pursuing his Master thesis research at Politechnika Warszawska, Warsaw, Poland and the M.Sc. degree in electromechanical engineering... Read More →
avatar for Patrick Mercier

Patrick Mercier

Associate Professor & Co-Director, Center for Wearable Sensors, University of California, San Diego
Patrick Mercier is an Associate Professor of Electrical and Computer Engineering and co-founder/co-director of the Center for Wearable Sensors at UC San Diego. He received his B.Sc. degree from the University of Alberta, Canada, in 2006, and the S.M. and Ph.D. degrees from MIT in... Read More →

Tuesday September 21, 2021 9:00am - 12:00pm PDT
Symposium 3