Research Article

Design and Experimental Evaluation on an Advanced Multisource Energy Harvesting System for Wireless Sensor Nodes

Figure 9

The calculated charge powers of the lithium polymer battery and efficiency of the MPPT circuit. (a) Comparative analysis of the lithium polymer battery charge power. (b) Efficiency of the MPPT circuit.
671280.fig.009a
(a)
671280.fig.009b
(b)