EPR-54 Datasheet, PDF (33/40 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP 54 - 2.75 W Charger/Adapter Using LNK520P

07-May-2004
EPR-54 – LinkSwitch 2.75 W Low Cost Charger / Adapter
11.5.1 Efficiency
Efficiency at Full Load - 0.5 A
(measured at end of cable)
80%
75%
70%
65%
60%
55%
50%
0
50
100
150
200
250
300
Input Voltage (VAC)
Figure 29 – Efficiency vs. Input Voltage, Alternate EE16, Full Load, Room Temperature, 60Hz.
Efficiency versus Output Current
(measured at end of cable)
80%
75%
70%
85 VAC
65%
115 VAC
190 VAC
230 VAC
60%
265 VAC
55%
50%
0
0.1
0.2
0.3
0.4
0.5
0.6
Load Current (A)
Figure 30 – Efficiency vs. Output Load, Alternate EE16, Room Temperature, 60Hz.
Page 33 of 40
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