Test results and significant waveforms

AN2838

10/23

DocID15099 Rev 2

The converter’s efficiency has been measured and it is significantly high in all load and line

conditions (see Figure 8). At full load, the efficiency is higher than 85% at any input voltage,

making this design suitable for high efficiency power supplies. Also, at lower output load the

efficiency is better than 82%. At minimum load (40 mA output current) the efficiency is still

good.

Figure 9 reports the output voltage measured under different line and load conditions. As

shown, the voltage regulation over the entire input voltage range is excellent at any output

current level.

Figure 6. EVL6562A-35WFLB input

current waveform @100 V-50 Hz - 35 W

load

Figure 7. EVL6562A-35WFLB input

current waveform @230 V-50 Hz - 35 W

load