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Step-up DC-DC-converter with coupled inductors for low input voltages

 
: Pollak, M.; Mateu, L.; Spies, P.

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Fulltext (PDF; )

Tohoku Univ., Sendai:
PowerMEMS 2008 + µEMS 2008. Technical Digest : The 8th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications with The 2nd Symposium on Micro Environmental Machine Systems. 9-12 November, 2008, Sendai, Japan
Sendai/Japan, 2008
pp.145-148
Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) <8, 2008, Sendai>
Symposium on Micro Environmental Machine Systems (µEMS) <2, 2008, Sendai>
English
Conference Paper, Electronic Publication
Fraunhofer IIS ()

Abstract
Step-up dc-dc converters have to cope with extremely low input voltages when used in combination with energy harvesting sources like thermogenerators, inductive generators or solar cells. The presented dc-dc converter is characterized by a high efficiency, up to 70 % in the input voltage range between 200 mV and 500 mV, and a minimum start-up voltage of 70 mV. It can deliver an output power of about 5 mW with an input voltage of 300 mV and an input current of 3.5 mA for an output voltage of 2 V.

: http://publica.fraunhofer.de/documents/N-294388.html