A solar battery charger with maximum power point tracking

Author

Pastre, Marc ; Krummenacher, François ; Kazanc, Onur ; Pour, Naser Khosro ; Pace, Catherine ; Rigert, Stefan ; Kayal, Maher

Author_Institution

Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland

fYear

2011

fDate

11-14 Dec. 2011

Firstpage

394

Lastpage

397

Abstract

This paper presents a solar charger ASIC for Li-Ion and Nickel-based (NiCd or NiMH) batteries. The system is a DC/DC converter that operates the solar panel at its maximum power point by tracking it using a hill-climbing algorithm. Only one external inductor and one diode are necessary. The circuit is fabricated in a 0.5μm 5V process. It features a low power consumption of 84μA.

Keywords

DC-DC power convertors; application specific integrated circuits; battery chargers; cadmium; diodes; inductors; lithium; low-power electronics; maximum power point trackers; nickel; secondary cells; solar cells; DC-DC converter; Li; Ni-Cd; current 84 muA; diode; hill-climbing algorithm; inductor; maximum power point tracking; power consumption; size 0.5 mum; solar battery charger ASIC; solar panel; voltage 5 V; Application specific integrated circuits; Batteries; Battery charge measurement; Current measurement; DC-DC power converters; Switches; Voltage measurement; ASIC; Battery charger; Li-Ion; Low-power; Low-voltage; MPPT; Maximum power point tracking; NiCd; NiMH; Photovoltaic panel; Solar charger;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems (ICECS), 2011 18th IEEE International Conference on

Conference_Location

Beirut

Print_ISBN

978-1-4577-1845-8

Electronic_ISBN

978-1-4577-1844-1

Type

conf

DOI

10.1109/ICECS.2011.6122296

Filename

6122296