AN3111

STEVAL-ILL027V2 demonstration board

Doc ID 16815 Rev 2

19/23

reaches the turn-off threshold, the device stops switching and the capacitor C5 is again

charged via resistors R12 and R16 and the cycle is repeated.

Figure 15.

Short-circuit measurement

The STEVAL-ILL027V2 demonstration board is also tested for EMI behavior. The EN55015

(CISPR15) standard describes limits and methods for the measurement of radio disturbance

characteristics of electrical lighting and similar equipment. STEVAL-ILL027V2 fulfills this

standard, as demonstrated in Figure 16 and 17.

Figure 16.

EMI measurement - detector average