Self-powered wireless sensor module

Conference: Smart Systems Integration 2008 - 2nd European Conference & Exhibition on Integration Issues of Miniaturized Systems - MOMS, MOEMS, ICS and Electronic Components
04/09/2008 - 04/10/2008 at Barcelona, Spain

Proceedings: Smart Systems Integration 2008

Pages: 3Language: englishTyp: PDF

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Spies, Peter; Mateu, Loreto (Power Efficient Systems Department, Fraunhofer IIS, Nuernberg, Germany)
Ebling, Dirk (Thermoelectric Systems Department, Fraunhofer IPM, Freiburg, Germany)

A self-powered wireless sensor module which uses a thermo-generator as power supply is presented. The module comprises a wireless transceiver and a sensing unit to monitor and send the data to a nearby base station every second. The energy consumption can be covered totally by the thermo-generator and the human body as heat source. The low output voltage levels obtained from the thermo-generator have motivated the design of a power management unit with a start-up voltage of 60 mV.