Efficiency and power losses – Rockwell Automation 1606-XLE480FP Power Supply Reference Manual User Manual

Page 9

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All parameters are specified at 48V, 10A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

Rockwell Automation Publication 1606-RM043A-EN-P — March 2014

9

Bulletin 1606 Switched Mode Power Supplies

9. Efficiency and Power Losses

AC 100V

AC 120V

AC 230V

Efficiency

typ.

92.0%

92.6%

93.9%

at 48V, 10A

typ.

91.8%

92.3%

93.9%

at 48V, 12A (Power Boost)

Average efficiency

*)

typ.

91.1%

91.7%

92.8%

25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A

Power losses

typ.

6.1W

3.6W

2.4W

at 48V, 0A

typ.

22.5W

21.6W

18.3W

at

48V,

5A

typ.

41.7W

38.4W

31.2W

at

48V,

10A

typ.

51.5W

48.0W

37.4W

at 48V, 12A (Power Boost)

*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%

of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.


Fig. 9-1 Efficiency vs. output current at 48V,

typ

Fig. 9-2 Losses vs. output current at 48V, typ.

0

1

3

4

6

7

12A

86

84

88

90

92

96%

9 10

94

2

5

8

Output Current

11

a) 100Vac

b) 120Vac

c) 230Vac

b

a

Efficiency

c

Power Losses

0

1

3

4

6

7

12A

10

0

20

30

40

60W

9 10

50

2

5

8

Output Current

11

a) 100Vac

b) 120Vac

c) 230Vac

c

a

b

Fig. 9-3 Efficiency vs. input voltage at 48V,

10A, typ.

Fig. 9-4 Losses vs. input voltage at 48V, 10A,

typ.

Efficiency

120

180

230

264Vac

89

90

91

92

Input Voltage

93

94

95%

100

Power Losses

120

180

230

264Vac

20

25

30

35

Input Voltage

40

45

50W

100

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