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5uW-10mW input power range inductive boost converter for indoor photovoltaic energy harvesting with integrated maximum power point tracking algorithm


These file attachments have been under embargo and were made available to the public after the embargo was lifted on 7 March 2011.

Author: Qiu, Y. · Van Liempd, C. · Op het Veld, J.H.G. · Blanken, P.G. · Van Hoof, C.
Type:Conference paper
Embargo lifted:2011-03-07
Publisher: IEEE
Institution: Philips Research
Source:ISSCC 2011; IEEE Int. Solid-State Circuits Conf. (San Francisco, CA)
Identifier: MS-31.868
Keywords: inductive power converter · maximum power point tracking · photo voltaic · ultra low power
Rights: (c) 2010 IEEE


A fully autonomous inductive boost converter for indoor photovoltaic harvesting with maximum power point tracking circuit is implemented in a commercial 0.25um CMOS process. The converter can handle input power from 5uW up to 10mW and charge a battery or a super-capacitor up to 5V. Its control circuit consumes between 0.8uA and 2.1uA depending on the input power level, resulting in a peak end-to-end efficiency of 70% when tracking a maximum input power of 17uW.

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