參數(shù)資料
型號(hào)： LKP5740-6R
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 2-OUTPUT 250 W AC-DC PWR FACTOR CORR MODULE
封裝： HEAT SINK, METAL, CASE K02, MODULE
文件頁(yè)數(shù)： 23/28頁(yè)
文件大小： 674K
代理商： LKP5740-6R
BCD20001-G Rev AB
Page 4 of 28
www.power-one.com
K Series with PFC Data Sheet
150 – 280 Watt AC-DC Converters
Fig. 2
Block diagram of double-output models
1
Transient suppressor (VDR)
2
Inrush current limiter (NTC, only models with TA min = –25 °C ), or option E
3
Input fuse
4
Bulk capacitor (Ci)
Functional Description
The input voltage is fed via an input fuse, an input filter, a
rectifier, and an inrush current limiter to a boost converter.
This step-up converter provides a sinusoidal input current
(IEC/EN 61000-3-2, class D equipment) and charges the
bulk capacitor Ci to approx. 370 VDC. This capacitor
sources a single-transistor forward converter and provides
the power during the hold-up time.
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 an 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 switching
transistor of the forward converter.
The second output of double output models is tracking to
the main output, but has its own current limiting circuit. If
the main output voltage drops due to current limitation, the
second output voltage will fall as well and vice versa.
Fig. 1
Block diagram of single-output converters
1
Transient suppressor (VDR)
2
Inrush current limiter (NTC, only models with TA min = –25 °C ), or option E
3
Input fuse
4
Bulk capacitor (Ci)
Input
filter
Control
circuit
P
2
CY
16
18
20
22
12
4
6
8
10
14
CY
Output
filter
1
28
30
32
24
3
–
+
CY
Forward
converter
(approx.
80
kHz)
+
Boost
converter
( PFC
)
370
VDC
Ci 4
03001b
R
i
D/V
T
S+
Vo+
Vo–
S–
26
N~
L~
Input
filter
Control
circuit
1
P
2
16
18
20
22
12
14
4
6
8
10
Output
2
filter
Output
1
filter
26
28
30
32
24
3
–
+
CY
Forward
converter
(approx.
80
kHz)
Boost
converter
( PFC
)
+
370
VDC
Ci4
03002b
N~
L~
R
i
D
T
Vo1+
Vo1–
Vo2+
Vo2–
相關(guān)PDF資料
PDF描述
LLT3837EFE SWITCHING CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PDSO16
LM136AH-2.5/883B 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, MBCY3
LM1946MX 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
LM2316SLBX PLL FREQUENCY SYNTHESIZER, 1200 MHz, CQCC16
LM25066APSQE POWER SUPPLY SUPPORT CKT, QCC24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LKP5740-7R 功能描述:線性和開(kāi)關(guān)式電源 Euro-Cassette 231W (25.68V) Battery Charger RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開(kāi)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(zhǎng)度: 寬度: 高度:
LKP5741-5R 制造商:Power-One 功能描述:AC/DC PS SGL-OUT 51.36V 5A 280W 15PIN - Bulk
LKP5742-7R 制造商:Power-One 功能描述:AC/DC PS SGL-OUT 50.5V TO 56.5V 4A 226W 15PIN - Bulk
LKQ1AF12TV5 制造商:Panasonic Electric Works 功能描述:PCB slim relay,SPNO,TV5,flux pf,5A 12Vdc
LKQ1AF12TV5T 制造商:Panasonic Electric Works 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*