参数资料
型号: CK2540-9ERD3TB1
英文描述: 150 Watt DC-DC and AC-DC Converters
中文描述: 150瓦的DC - DC和AC - DC转换器
文件页数: 4/34页
文件大小: 605K
代理商: CK2540-9ERD3TB1
K Series Data Sheet
150 Watt DC-DC and AC-DC Converters
APR 26, 2006 revised to MAY 15, 2006
Page 4 of 34
www.power-one.com
Functional Description
The input voltage is fed via an input fuse, an input filter, a bridge
rectifier (LK), 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
V
o1and 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.
Fig. 2
Block diagram of symmetrical double output converters AK - LK2000
1
Transient suppressor (VDR) in CK, DK, EK, FK, LK models
2
Suppressor diode in AK, BK, CK, FK models
C
1
2
P
3
F
(
16
18
20
22
12
14
4
6
8
10
O
f
O
f
26
28
30
32
24
4
+
Y
Y
Y
Y
Y
Y
R
i
D
T
Vi+
Vi–
03058-082605
Vo1+
Vo1–
Vo2+
Vo2–
I
4
5
N
5
P
3
Inrush current limiter in CK, DK, EK, LK (NTC resistor or option E circuit)
4
Bridge rectifier (LK only)
5
LK models
I
C
2
4
P
3
F
(
Y
16
18
20
22
12
4
6
8
10
14
Y
O
f
1
26
28
30
32
24
4
F
+
Y
Y
Vi+
Vi–
R
i
D/V
T
03057-082605
S+
Vo+
Vo–
S–
5
N
5
P
Fig. 1
Block diagram of single output converters AK - LK1000
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