DocID15099 Rev 2

13/23

AN2838

Test results and significant waveforms

23

The above figures show the MOSFET waveforms at light load. Even in this load condition

the waveforms are correct. It can be noted that at high mains the converter works in burst

mode (see Figure 19), keeping efficiency at a good level.

CH1: drain current - 0.2 A/div

CH1: drain current - 0.2 A/div

CH2: drain voltage - 200 V/div

CH2: drain voltage - 200 V/div