ABSTRACT
By the year 2020 it is expected that corresponding to every human being there would be seven connected devices. These connected devices will usher in the Internet of Things (IoTs) and would percolate every aspect of human life, changing the human experience at a fundamental level. In order to power these devices novel strategies would have to be developed as these devices will not only have a dynamic load, due to multiple features, but also dynamic sources if opportunistic energy harvesting is used to supplement the rechargeable battery. For the power delivery network, figures of merit would be to comprehend both the ability to supply the worst case design as well as to maintain high efficiency across a wide dynamic range. To maintain high efficiency for a large range we will need adaptive components on the load side as well as at the energy source. In this work we will discuss the general IoT power delivery network (PDN), current research and the state of the art PDN components, novel designs and control for interface circuits and energy harvesters.
- Saad Bin Nasir, Samantak Gangopadhyay, Arijit Raychowdhury. A 130nm Fully-Digital Low-dropout Regulator with Adaptive Control and Reduced Dynamic Stability for Ultra-wide Dynamic Range. International Solid State Circuits Conference (ISSCC), San Francisco, Feb. 2015.Google Scholar
- S. Gangopadhyay, Y. Lee, S. B. Nasir, A. Raychowdhury, Modeling and Analysis of Digital Linear Dropout Regulators with Adaptive Control for High Efficiency under Wide Dynamic Range Digital Loads, Proceedings of the Design, Automation & Test in Europe (DATE), Dresden, Mar. 2014. Google ScholarDigital Library
- Zhang et al. A batteryless 19 W MICS/ISM-band energy harvesting body sensor node SoC for ExG applications. J. of Solid-State Circuits, 48.1 (2013): 199--213Google ScholarCross Ref
- K. A. Bowman et al., Energy-efficient and metastability-immune resilient circuits for dynamic variation tolerance, IEEE J. Solid-State Circuits, pp. 49--63, Jan. 2009.Google ScholarCross Ref
- S. Gangopadhyay, D. Somasekhar, J. W. Tschanz, and Arijit Raychowdhury. A 32 nm Embedded, Fully-Digital, Phase-Locked Low Dropout Regulator for Fine Grained Power Management in Digital Circuits. Solid-State Circuits, IEEE Journal of (JSSC), Issue 11, pp: 2684--2693, 2014,.Google Scholar
- S. Bandyopadhyay, A. Chandrakasan, Platform Architecture for Solar, Thermal, and Vibration Energy Combining With MPPT and Single Inductor. IEEE Journal of Solid State Circuits, Vol. 47, No. 9, Sep. 2012Google ScholarCross Ref
- Kazuaki Mori et al. Analog-Assisted Digital Low Dropout Regulator (AAD-LDO) with 59% Faster Transient Response and 28% Ripple Reduction. International Conference on Solid State Devices and Materials, Fukuoka, 2013, pp. 888--889Google Scholar
- R. Jain, S. Sanders, A 200mA Switched Capacitor Voltage Regulator on 32nm CMOS and regulation schemes to enable DVFS. European Conf. on Power Electronics, 2011, pp. 1--10.Google Scholar
- R. Jain et al. A 0.45--1V Fully Integrated Reconfigurable Switched Capacitor Step-Down DC-DC Converter with High Density MIM Capacitor in 22nm Tri-Gate CMOS. Symposium on VLSI Circuits, 2013.Google Scholar
- Y. K. Ramadass and A. P. Chandrakasan, A battery-less thermoelectric energy harvesting interface circuit with 35 mV startup voltage, IEEE J. Solid-State Circuits, vol. 46, no. 1, pp. 333--341, Jan. 2011.Google ScholarCross Ref
- http://www.bosch-solarenergy.com/Google Scholar
- http://www.micropelt.com/Google Scholar
- http://www.mide.com/products/volture/Google Scholar
- Inna Vaisband et al. "Distributed LDO Regulators in a 28 nm Power Delivery System", Analog Integrated Circuits and Signal Processing, DOI: 10.1007/s10470-015-0526-y ALOG-D-15-00076.0 Google ScholarDigital Library
- https://www.qualcomm.com/internet-of-everythingGoogle Scholar
- Internet of Everything: http://www.microwaveeetimes.com-/en/qca4002.htmlGoogle Scholar
- Internet of Everything http://www.eeworld.com.cn-/zt/wireless/downloads/QCA4002-4004FIN.pdfGoogle Scholar
- Smart Cells: http://www.qca.qualcomm.com/mediaresources-/SmallCells_Brochure_v6-lowres.pdfGoogle Scholar
- Kopetz, Hermann. "Internet of things." Real-Time Systems. Springer US, 2011. 307--323.Google Scholar
- W. J. Dally, "It's About the Power: An Architect's View of Interconnect," Keynote IEEE, IITC, 2012.Google Scholar
Index Terms
- Integrated power management in IoT devices under wide dynamic ranges of operation
Recommendations
A fully integrated CMOS voltage regulator for supply-noise-insensitive charge pump PLL design
In this paper, a new design of on-chip CMOS voltage regulator, which provides two stable power supplies to charge pump and voltage controlled oscillator (VCO) in charge pump phase-locked loop (PLL), is presented. A power supply noise rejection (PSNR) ...
Distributed LDO regulators in a 28 nm power delivery system
A fully integrated power delivery system with distributed on-chip low-dropout (LDO) regulators developed for voltage regulation in portable devices and fabricated in a 28 nm CMOS process is described. Each LDO employs adaptive bias for fast and power ...
A power conversion chain with an internally-set voltage reference and reusing the power receiver coil for wireless bio-implants
In this paper, a power conversion chain (PCC) with an internally-set voltage reference is presented. It is comprised of a power receiver coil, an active rectifier and a novel buck-boost converter. The output voltage of the PCC is set by using the ...
Comments