June 2014
Intermediate to advanced
296 pages
10h 27m
English
book
Smart Sensor Systems: Emerging Technologies and Applications
by Kofi Makinwa, Michiel Pertijs, Gerard Meijer
Content preview from Smart Sensor Systems: Emerging Technologies and Applications
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Chapter 9Micropower Generation: Principles and Applications
9.1 Introduction
The continuously decreasing power consumption of silicon-based electronics has enabled a broad range of battery-powered handheld, wearable and even implantable devices. Spanning six orders of magnitude, the typical power consumptions of a variety of electronic devices are listed in Table 9.1, together with their corresponding energy autonomy.
Table 9.1 Power consumption and energy autonomy of battery-operated electronic devices
| Device Type | Power Consumption | Energy Autonomy |
| Smartphone | 1 W | 8 hours |
| MP3 player | 50 mW | 15 hours |
| Hearing Aid | 1 mW | 5 days |
| Wireless Sensor Node* |  |
Lifetime |
| Cardiac Pacemaker |  |
7 years |
| Quartz watch |  |
5 years |
* when powered by energy harvester and energy storage device.Reproduced by permission of Elsevier
All these devices need a compact, low-cost and lightweight energy source, which enables the desired portability and energy autonomy. Nowadays, batteries represent the dominant energy source for the devices listed in Table 9.1 and alike. ...
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