A solar battery charger with maximum power point tracking

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.

[1]  Hong-Gyu Kim,et al.  State estimator design for solar battery charger , 2009, 2009 IEEE International Conference on Industrial Technology.

[2]  Eric A. Vittoz.  The Design of High-Performance Analog Circuits on Digital CMOS Chips , 1985 .

[3]  Marc Pastre,et al.  PAD: A New Interactive Knowledge-Based Analog Design Approach , 2005 .

[4]  Marc Pastre,et al.  A fully integrated solar battery charger , 2009, 2009 Joint IEEE North-East Workshop on Circuits and Systems and TAISA Conference.