EPR-16 Datasheet, PDF (33/36 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP-16 2.75 W Charger/Adapter Using LNK501

17-May-04
EPR-16 – LinkSwitch 2.75 W Charger/Adapter
11.5 EMI Performance
No change in conducted EMI performance was measured. The results of the LNK520P
and modified EP-16 were the same as the original EP-16 design, as shown in Figures 24
and 25.
However, the optimized switching characteristics of LNK520P produced a significant
reduction in radiated EMI. Figure 34 provides a comparison of quasi-peak radiated
emissions with the original EP-16 (LNK501P) and modified EP-16 (LNK520P) designs.
A 6 dBµV to 12 dBµV reduction is shown with the LNK520P device. The results are
shown as a comparative reference. Actual radiated emissions levels will vary according
to radiated test setup and measurement configurations.
LNK501P (EP-16)
LNK520P (modified EP-16)
Figure 34 – Comparison of Radiated Emissions, V_IN = 230 VAC, 60 Hz Line, Peak Power Point.
Page 33 of 36
Power Integrations
Tel: [phone] Fax: [phone]
www.powerint.com