A highly efficient Micro-Power Converter between a Solar Cell and a Rechargable Lithium-ion Battery

A.C. Woerd, van der, M.A. Bais, L.P. Jong, de, A.H.M. Roermund, van

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

1 Citaat (Scopus)
1 Downloads (Pure)

Samenvatting

This paper describes the design of a low-power photo-voltaic power converter which will be used in a directional hearing aid. It is argued, that the use of a switched-capacitor converter is needed when integration on a chip is demanded. This converter combined with a parallel power converter has an efficiency that lies between 70% and 85%. This efficiency depends on the charging voltage of the implemented rechargeable thin-film lithium-ion battery. This battery will be glued at the back side of the power-converter chip. The converter is controlled by a maximum-power-point-tracker to perform maximum charging of the battery under the varying conditions of the solar cell. The controller is adapted to operate with a switched-capacitor converter. This paper also shows a structured derivation of the necessary solar cell area. The complete power converter has been designed in a custom CMOS process and the major part of the circuit operates in the sub-threshold area.
Originele taal-2Engels
TitelSmart structures and materials 1998: smart electronics and MEMS, San Diego, 1998
RedacteurenV.K. Varandan, R.A. Singer, M.J. Vellekoop
Plaats van productieBellingham
UitgeverijSPIE
Pagina's315-325
DOI's
StatusGepubliceerd - 1998

Publicatie series

NaamProceedings of SPIE
Volume3328
ISSN van geprinte versie0277-786X

Vingerafdruk Duik in de onderzoeksthema's van 'A highly efficient Micro-Power Converter between a Solar Cell and a Rechargable Lithium-ion Battery'. Samen vormen ze een unieke vingerafdruk.

  • Citeer dit

    Woerd, van der, A. C., Bais, M. A., Jong, de, L. P., & Roermund, van, A. H. M. (1998). A highly efficient Micro-Power Converter between a Solar Cell and a Rechargable Lithium-ion Battery. In V. K. Varandan, R. A. Singer, & M. J. Vellekoop (editors), Smart structures and materials 1998: smart electronics and MEMS, San Diego, 1998 (blz. 315-325). (Proceedings of SPIE; Vol. 3328). SPIE. https://doi.org/10.1117/12.320184