EPR-48 Datasheet, PDF (9/20 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP48 - 1.4 W Non-Isolated Buck Converter Using LNK304P

02-May-2005
EP48 – 12 V, 1.44 W, Non-Isolated Buck Converter
7 Performance Data
All measurements performed at room temperature, 60 Hz input frequency.
7.1 Efficiency
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
0
85 VAC
115 VAC
265 VAC
20
40
60
80
100
120
140
Output Current (mA)
Figure 4 - Efficiency vs. Output Current, Room Temperature, 60 Hz.
7.2 No-load Input Power
200
180
160
140
120
100
80
60
40
20
0
80
100
120
140
160
180
200
220
240
260
280
Input Voltage (VAC)
Figure 5 - Zero Load Input Power vs. Input Line Voltage, Room Temperature, 60 Hz.
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