*6.5. Controller's Behavior under Resistor Load Variations*

In this test, the input DC voltage and the DC-DC buck converter are held constant at their nominal values. The target output voltage is also fixed to a constant value. The load variation trajectory is given in Figure 11a. The obtained responses of the five algorithms are shown in Figure 11b,c. Table 3 gives the comparison performances in this case.

**Figure 11.** Resistor load variation: (**a**) evolution of the control voltage and (**b**) evolution of target and (**c**) actual output voltages.
