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Design of a Multiple-Input SC DC-DC Converter Realizing Long Battery Runtime
Kei EGUCHI Sawai PONGSWATD Amphawan JULSEREEWONG Kitti TIRASESTH Hirofumi SASAKI Takahiro INOUE
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/05/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Circuit Theory
DC-DC converters, switched-capacitor circuits, back-lighting applications, clean energy,
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A multiple-input switched-capacitor DC-DC converter which can realize long battery runtime is proposed in this letter. Unlike conventional converters for a back-lighting application, the proposed converter drives some LEDs by converting energy from solar cells. Furthermore, the proposed converter can charge a lithium battery when an output load is light. The validity of circuit design is confirmed by theoretical analyses, simulations, and experiments.