Oregon State University

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Event Details

MS Final Examination – Brian Miller

Wednesday, February 27, 2013 12:00 PM - 2:00 PM

A New DC-DC Converter Architecture for Low-Power, High-Resistance Thermoelectric Generators for Use in Body-Powered Designs
This thesis presents a low power batteryless DC-DC converter suitable for harvesting energy from high impedance TEGs for the use in body powered electronics. The chip has been fabricated in a 130nm CMOS technology. To meet the power demands of body powered networks, a novel dual-path architecture capable of efficiently harvesting power at levels below 5 μW has been developed. To control the converter, a low power control loop has been developed. The control loop features a low-power oscillator and pulse counting system capable of matching impedance with high impedance thermoelectric generators (TEGs). The system consumes less than 900nW of quiescent power and maintains an efficiency of 68% for a load of 5 μW.

Major Advisor: Terri Fiez
Co-Major Advisor: Karti Mayaram
Committee: Gabor Temes
GCR: Leonard Coop 

Kelley Engineering Center (campus map)
Nicole Thompson
Nicole.Thompson at oregonstate.edu
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