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參數(shù)資料
| 型號： | DS2540-9RD1B2 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE S02, MODULE |
| 文件頁數(shù)： | 28/33頁 |
| 文件大?。?/td> | 438K |
| 代理商： | DS2540-9RD1B2 |
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S Series Data Sheet
100 Watt AC-DC and DC-DC Converters
APR 26, 2006 revised to SEP 25, 2006
Page 4 of 33
www.power-one.com
Functional Description
The input voltage is fed via an input fuse, an input filter, a bridge
rectifier (LS), and an inrush current limiter to the input capacitor.
This capacitor sources a single transistor forward converter.
Each output is powered by a separate secondary winding of the
main transformer. The resultant voltages are rectified and their
ripple smoothed by a power choke and output filter. The control
logic senses the main output voltage Vo1 and generates, with
respect to the maximum admissible output currents, the control
signal for the primary switching transistor.
The second output of double-output models is controlled by the
main output but has independent current limiting. If the main output
is driven into current limitation, the second output voltage will fall as
well and vice versa.
1 Transient suppressor (VDR) in CS, DS, ES, FS, LS models
2 Suppressor diode in AS, BS, CS, FS models
Control
circuit
1
2
P
3
Forward
converter
(approx.
110
kHz)
16
18
20
22
12
14
4
6
8
10
Output
2
filter
Output
1
filter
26
28
30
32
24
–
+
Y
R
i
D
T
Vi+
Vi–
03058-022706
Vo1+
Vo1–
Vo2+
Vo2–
Input
filter
4
5
N
5
L
Fuse
3 Inrush current limiter in CS, DS, ES, LS (NTC resistor or option E circuit)
4 Bridge rectifier (LS only)
5 LS models
Input
filter
Control
circuit
2
4
P
3
Forward
converter
(approx.
120
kHz)
Y
16
18
20
22
12
4
6
8
10
14
Y
Output
filter
1
26
28
30
32
24
–
+
Y
Vi+
Vi–
R
i
D/V
T
03057-022706
S+
Vo+
Vo–
S–
Fuse
5
N
5
L
Fig. 2
Block diagram of symmetrical double output converters AS - LS2000
Fig. 1
Block diagram of single output converters AS - LS1000
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