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參數(shù)資料
| 型號： | LS4000 |
| 英文描述： | 100 Watt AC-DC Converters with PFC |
| 中文描述： | 100瓦交直流轉(zhuǎn)換器的功率因數(shù)校正 |
| 文件頁數(shù)： | 12/27頁 |
| 文件大小： | 599K |
| 代理商： | LS4000 |
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Cassette Style
100 Watt AC-DC Converters
S Series PFC
Edition 01/01.2001
12/27
R
Vo1+
Vo1
–
S
–
U
ext
N
P
Module
Module
R
ext
R'
ext
14
16
16
14
+
S+
R
Vo1+
Vo1
–
S
–
N
P
12
06003
Programmable Output Voltage
(R-Function)
As a standard feature, the modules offer an adjustable out-
put voltage, identi
fi
ed by letter R in the type designation.
The control input R (pin 16) accepts either a control voltage
U
ext
or a resistor R
ext
to adjust the desired output voltage.
When not connected, the control input automatically sets
the output voltage to U
o nom
.
a) Adjustment by means of an external control voltage U
ext
between pin 16 (R) and pin 14:
The control voltage range is 0...2.75 V DC and allows an
output voltage adjustment in the range of approximately
0...110% U
o nom
.
U
U
ext
=
––––––
2.5 V (approximate formula)
U
o nom
b) Adjustment by means of an external resistor:
Depending upon the value of the required output voltage
the resistor shall be connected
either:
Between pin 16 and pin 14 (U
o
<
U
o nom
) to
achieve an output voltage adjustment range of approxi-
mately 0...100% U
o nom
or:
Between pin 16 and pin 12 (U
o
>
U
o nom
) to achieve
an output voltage adjustment range of approximately
100...110% U
o nom
.
Warning:
–
U
ext
shall never exceed 2.75 V DC.
–
The value of R'
ext
shall never be less than the lowest
value as indicated in table R'
ext
(for U
0
>
U
0 nom
) to avoid
damage to the unit!
Remarks:
–
The R-Function excludes option P (output voltage ad-
justment by potentiometer).
–
If the output voltages are increased above U
o nom
via R-
input control, option P setting, remote sensing or option
T, the output current(s) should be reduced accordingly so
that P
o nom
is not exceeded.
–
The R-input (as well as option P) is related to the main
output.
–
With double output units the second output follows the
value of the controlled main output. Resistor values as
indicated for the single output units should be used.
–
For correct output voltage adjustment of double output
units the external wiring of the outputs should be accord-
ing to
fi
g.: R-Function for different output configuration
depending upon the desired output con
fi
guration.
–
In case of parallel connection the output voltages should
be individually set within a tolerance of 1...2%.
Fig. 20
Output voltage control for single output units LS 4000 by
means of the R input
Table 7a: R
ext
for U
o
< U
o nom
; approximative values (U
i nom
, I
o nom
, series E 96 resistors); R'
ext
=
∞
U
o nom
= 5.1 V
U
o nom
= 12 V
U
o nom
= 15 V
U
o nom
= 24 V
U
o
(V)
R
ext
[k
]
U
o
[V]
1
R
ext
[k
]
U
o
[V]
1
R
ext
[k
]
U
o
[V]
1
R
ext
[k
]
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.432
0.976
1.65
2.61
3.83
5.76
8.66
14.7
30.1
200
2
3
4
5
6
7
8
9
4
6
8
0.806
1.33
2
2.87
4.02
5.62
8.06
12.1
20
42.2
2
4
6
8
9
4
8
0.619
1.47
2.67
4.53
6.04
8.06
11
16.2
26.1
56.2
4
6
8
8
0.806
1.33
2
2.87
4.02
5.62
8.06
12.1
20
44.2
12
16
20
24
28
32
36
40
44
12
16
18
20
22
24
26
28
10
12
14
16
18
20
22
10
12
14
16
18
20
22
10
11
12
13
14
10
11
Table 7b:R
’
ext
for U
o
> U
o nom
; approximative values (U
i nom
, I
o nom
, series E 96 resistors); R
ext
=
∞
U
o nom
= 5.1 V
U
o nom
= 12 V
U
o nom
= 15 V
U
o nom
= 24 V
U
o
[V]
R'
ext
[k
]
U
o
[V]
1
R'
ext
[k
]
U
o
[V]
1
R'
ext
[k
]
U
o
[V]
1
R'
ext
[k
]
5.15
5.2
5.25
5.3
5.35
5.4
5.45
5.5
432
215
147
110
88.7
75
64.9
57.6
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
13.0
13.2
24.2
24.4
24.6
24.8
25.0
25.2
25.4
25.6
26.0
26.4
1820
931
619
475
383
316
274
243
196
169
15.2
15.4
15.6
15.8
16.0
16.2
16.4
16.5
30.4
30.8
31.2
31.6
32.0
32.4
32.8
33.0
1500
768
523
392
316
267
232
221
24.25
24.5
24.75
25.0
25.25
25.5
25.75
26.0
26.25
26.4
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
52.5
52.8
3320
1690
1130
845
698
590
511
442
402
383
1
First column: single output units or double output units with separated outputs, second column: outputs in series connection
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