QEB125-48S05 Derating Curve
120
OUTPUT POWER (%)
100
80
60
40
20
0
-40
0 LFM
100 LFM
200 LFM
300 LFM
400 LFM
500 LFM
-27
-20
0
20
40
60
80
100
120
AMBIENT TEMPERATURE(
℃
)
QEB125-48S05 Derating Curve
With Heatsink 7G-0029 (Note 7 )
120
0 LFM
OUTPUT POWER(%)
100
80
60
40
20
0
-40
100 LFM
200 LFM
300 LFM
400 LFM
500 LFM
Recommended Filter for EN55022 Class B Compliance
The components used in the above figure, together with the
manufacturers’ part numbers for these components, are as follows:
C1
6.8μF/50V
C6
1.5nF/3KV
QEB125-24Sxx
C11
0.1μF/50V
L1
622μH
C2
6.8μF/50V
C7
6.8μF/50V
C12
1.0nF/3KV
L2
224μH
C3
6.8μF/50V
C8
6.8μF/50V
C13
1.0nF/3KV
C4
6.8μF/50V
C9
6.8μF/50V
C14
1.0nF/3KV
C5
1.5nF/3KV
C10
0.1μF/50V
C15
1.0nF/3KV
-20
-10
0
20
40
60
80
100
120
AMBIENT TEMPERATURE(℃)
QEB125-48S05
Efficiency VS Input voltage
92
91
90
89
88
87
86
85
36
40
44
48
52
56
60
64
68
72
EFFICIENCY(%)
INPUT VOLTAGE(V)
QEB125-48S05
Efficiency VS Output Load
EFFICIENCY(%)
95
90
85
80
75
70
65
60
10
20
30
40
50
60
70
80
90
100
C1
C2
C3
C4
C5
100μF/100V 1.5μF/100V 1.5μF/100V 1.5μF/100V 1.5nF/3KV
C6
C7
C8
C9
C10
1.5nF/3KV 47μF/100V 1.5μF/100V 1.5μF/100V 0.1μF/50V
QEB125-48Sxx
C11
C12
C13
C14
C15
0.1μF/50V 1.0nF/3KV 1.0nF/3KV 1.0nF/3KV 1.0nF/3KV
L1
L2
620μH
620μH
OUTPUT LOAD (% of Full Load)
Recommended EN55022 Class B Filter Circuit Layout
Page 4 of 4 Issued Date：2008/05/21
P-DUKE [ POWER MATE TECHNOLOGY CO., LTD ]
