Table 2.

Execution time (in seconds) of SPICE, the numerical energy model and SIVEH to simulate a supercapacitor complete discharge process (initial conditions: R = 100 Ω; I_sink = 10 mA; Δt = 1 ms; C = 10 mF; V_scap(t = 0) = 2.3 V; L6920-DB DC-DC); LT3020 linear regulator.

Case	(I) SPICE	(II) Energy	(III) SIVEH
Resistor	0.68	0.7966	0.2077
Current sink	0.30	0.111	0.0495
DC-DC	721.76	0.0132	0.0132
Linear	0.87	0.059	0.0287