AN2937 Datasheet, PDF (26/41 Pages) STMicroelectronics – Power system demonstration kit based on the PM6686 dual

Representative waveforms
11 Representative waveforms
AN2937
11.1
Operating modes - Skip, NA skip, PWM
The following illustrations show the relevant waveforms of a switching section and is
provided to underline the behavior of the device in pulse skip mode, no-audible skip mode
and forced PWM mode working conditions.
Figure 8. SMPS pulse skip mode, no load
Figure 9. SMPS no-audible skip mode, no load
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Doc ID 15418 Rev 1