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參數(shù)資料
| 型號： | LS2320-9ERD6TB2 |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 100 W AC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE S02, MODULE |
| 文件頁數(shù)： | 19/25頁 |
| 文件大?。?/td> | 591K |
| 代理商： | LS2320-9ERD6TB2 |
Cassette Style
100 Watt AC-DC (DC-DC) Converters
S Series
Edition 01/01.2001
3/25
Functional Description
The input voltage is fed via an input fuse, an input filter, a
rectifier 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 ripples smoothed by a power choke and output fil-
ter. The control logic senses the main output voltage
Uo1
Fig. 1
Block diagram of single output converters LS 1000
and generates, with respect to the maximum admissible
output currents, the control signal for the primary switching
transistor.
The second output of double output units is controlled by
the main output but has independent current limiting. If the
main output is driven into current limitation, the second out-
put voltage will fall as well and vice versa.
Input
filter
Control
circuit
P
2
Y
16 R
18 i
20 D/V
22 T
12 S+
4
6
8
10
14 S–
Y
Output
filter
1
30
32
24
3
–
+
Y
Forward
converter
(approx.
120
kHz)
03085
Vo+
Vo–
26
28
N
P
1 Transient suppressor (VDR)
2 Inrush current limiter (NTC or option E), -9 version exclude the NTC
3 Input fuse
Input
filter
Control
circuit
1
P
2
16 R
18 i
20 D
22 T
12 Vo1+
14 Vo1–
4
6
8
10
Output
2
filter
Output
1
filter
3
–
+
Y
Forward
converter
(approx.110
kHz)
03086
Vo2+
Vo2–
30
32
24
26
28
N
P
Fig. 2
Block diagram of symmetrical double output converters LS 2000
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