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參數(shù)資料
| 型號： | LK2540-7PD0T |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 150 W AC-DC REG PWR SUPPLY MODULE |
| 封裝： | HEAT SINK, METAL, CASE K02, MODULE |
| 文件頁數(shù)： | 23/27頁 |
| 文件大小： | 640K |
| 代理商： | LK2540-7PD0T |
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K-Family
DC-DC Converters >100 W
Rugged Environment
8 - 6
Edition 2/96 - Melcher AG
MELCHER
The Power Partners.
8.1
Fig. 2
Block diagram of single output converters AK…LK 1000
Input
filter
Control
circuit
2
P
4
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
5
–
+
Y
Functional Description
The input voltage is fed via an input fuse, an input filter, a
rectifier (LK types) 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 filter. The control logic senses the main output volt-
age
Uo1 and generates, with respect to the maximum ad-
missible 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 taken into current limitation, the second out-
put voltage will fall as well and vice versa.
Fig. 3
Block diagram of symmetrical double output converters AK...LK 2000
4 Inrush current limiter in C/D/E/LK types (NTC or Opt. E),
-9 versions exclude the NTC
5 Input fuse
1 Transient suppressor (VDR) in C/D/E/F/LK types
2 Transient suppressor (diode) in A/B/C/FK types
3 Bridge rectifier in LK types
Input
filter
Control
circuit
1
2
P
4
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
5
–
+
Y
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LK2540-7R | 功能描述:線性和開關(guān)式電源 Euro-Cassette 150W (2x 15V) RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長度: 寬度: 高度: |
| LK2540-7R-B1 | 制造商:Power-One 功能描述:150 W Single Output 30 V AC/DC Converter Power Supply |
| LK2540-7RTB1 | 制造商:Power-One 功能描述:LK Series 150 W Single Output 30 V AC/DC Power Supply Converter |
| LK2540-9ER | 制造商:Power-One 功能描述:ACDC - Bulk |
| LK2540-9R | 制造商:Power-One 功能描述:LK Series 150W Dual Output +-12V AC/DC Power Supply |
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