Discrete State-Feedback Control Design with D-Stability and Genetic Algorithm for LED Driver Using a Buck Converter

Figure 13

Experimental results, pulse current tests when the LED current changes from 150 mA to 310 mA and vice versa: (a) CH1 voltage from the voltage sensor, (b) CH2 voltage from de current sensor, (c) CH3 is the LED voltage, and (d) CH4 is the LED current.