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

Figure 12

Power curves of the experiment with different ambient energy conditions. Negative value in this figure denotes the discharge power of the lithium polymer battery and super capacitor. (a) Only 1 g amplitude vibration. (b) Only 470 W/m² light power intensity. (c) Without light or vibration.

(a)

(b)

(c)