EP-85 6 V, 330 mA Low Cost Charger
04-Oct-2005
8 Performance Data
All measurements performed at room temperature, 47 Hz input frequency.
8.1 Efficiency
80%
70%
60%
50%
at 90 VAC
40%
at 115 VAC
at 230 VAC
30%
at 265 VAC
20%
10%
0%
0.00
0.50
1.00
1.50
2.00
2.50
Output Power (W)
Figure 8
–
Efficiency vs. Output Power.
8.1.1 Active Mode CEC Measurement Data
The table below lists the operating efficiencies at specific load points measured at the
nominal input voltages. For the purposes of the CEC & EPA calculations, 2 W output was
taken as the 100% load point. The CEC & EPA spec shown in the table below was
calculated based on 2 W as the nominal 100% load.
25%
50%
75%
100%
Average
Efficiency
(%)
CEC / EPA
Spec.
Input Voltage
Relative Relative Relative Relative
POUT
65.0
60.5
POUT
68.1
65.3
POUT
67.7
66.6
POUT
66.6
67.3
(%)
115 VAC
230 VAC
66.8
64.9
55.2
55.2
Power Integrations
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