參數(shù)資料
型號(hào)： LK4301-7RD4T
元件分類： 電源模塊
英文描述： 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
封裝： HEAT SINK, METAL, CASE K02, MODULE
文件頁(yè)數(shù)： 22/28頁(yè)
文件大小： 606K
代理商： LK4301-7RD4T
Cassette Style
150 Watt AC-DC Converters
K Series PFC
Edition 01/01.2001
3/28
Functional Description
The input voltage is fed via an input fuse, an input lter, a
rectier and an inrush current limiter to a single transistor
boost converter. This converter provides a sinusoidal in-
put current (IEC/EN 61000-3-2, class D equipment) and
sources a capacitor with a voltage of 360-370 VDC. This
capacitor sources a single transistor forward converter.
Each output is powered by a separate secondary winding
on the main transformer. The resultant voltages are recti-
ed and their ripples smoothed by a power choke and an
output lter. 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 driven into current limitation, the second out-
put voltage will fall as well and vice versa.
Input
filter
Control
circuit
P
2
Y
16
18
20
22
12
4
6
8
10
14
Y
Output
filter
1
28
30
32
24
3
–
+
Y
Forward
converter
(approx.
80
kHz)
+
Boost
converter
(PFC)
360
V
DC
Ci
4
03001
R
i
D/V
T
S+
Vo+
Vo–
S–
26
N
P~
Fig. 1
Block diagram of single output converters LK 4000
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
–
+
Y
Forward
converter
(approx.
80
kHz)
Boost
converter
(PFC)
+
360
V
DC
Ci
4
03002
N~
P~
R
i
D
T
Vo1+
Vo1–
Vo2+
Vo2–
Fig. 2
Block diagram of symmetrical double output converters LK 5000
1 Transient suppressor (VDR).
2 Inrush current limiter (NTC or option E), -9 versions exclude the NTC.
3 Input fuse.
4 Hold-up capacitor.
相關(guān)PDF資料
PDF描述
LK4301-7RDD 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
LK4301-9RD1 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
LK4301-9RD7 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
LK4501-7ERD6T 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
LK4501-9PD2TB1 1-OUTPUT 150 W AC-DC PWR FACTOR CORR MODULE
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