17-May-04
EPR-16 – LinkSwitch 2.75 W Charger/Adapter
11.4.2 Efficiency
Efficiency is slightly lower only due to the lower output voltage at the peak power point.
Resistor R1 could be increased slightly to raise the peak power point output voltage and
hence, efficiency, if desired.
80.00
70.00
60.00
Vin = 85 VAC
50.00
40.00
30.00
20.00
10.00
0.00
Vin = 115 VAC
Vin = 190 VAC
Vin = 230 VAC
Vin = 265 VAC
0
100
200
300
400
500
600
700
800
900
1000
Load Current (mA)
Figure 32 – Efficiency vs. Output Current at Selected Input Voltages.
Power Integrations
Tel: +1 408 414 9660 Fax: +1 408 414 9760
www.powerint.com
Page 31 of 36