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参数资料
| 型号： | LT1702-7D |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 550 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | CASE T01, MODULE |
| 文件页数： | 18/33页 |
| 文件大小： | 838K |
| 代理商： | LT1702-7D |
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Rugged Environment
AC-DC Converters >100 Watt
T Series
Edition 4/4.99
25/33
MELCHER
The Power Partners.
Electromagnetic Emission
The conducted noise emitted at the input of the T units
within the frequency range of 10 kHz to 30 MHz is below
level B according to CISPR 11/22/EN 55011/22 under all
operating conditions.
The radiated noise in the frequency range of 30 MHz to
300 MHz on the input- and the output-side of the T units
stays below the limit of CISPR 14/EN 55014 measured
90
80
70
60
50
40
30
20
10
0
.01
0
.05
0.1
0.5
1
2
5
10
20
30
[dB
V]
MHz
0
.02
07035
A
B
Fig. 47
Typical disturbance voltage (quasi-peak) at the input of a
T series AC-DC converter according to CISPR 11/22 and
EN 55011/22, measured at Ui nom and Io nom.
Fig. 48
Typical radiated electromagnetic field strength (quasi peak)
of an LT 1740 according to CISPR 11/22/EN 55011/22, nor-
malized to a distance of 10 m, measured on an open area
test site at Ui nom and Io nom.
50
40
30
20
10
0
30
50
100
200
500
1000
[dB
V/m]
[MHz]
A
B
07039
with an MDS-clamp and below level A, according to
CISPR 11/22/EN 55011/22 measured with an antenna.
The radiated noise of the T units between 30 MHz and
1 GHz will be reduced if the unit is built into a conductive
chromatized 19" rack, fitted with a Melcher front panel. For
units mounted otherwise, e.g. for wall mounting with option
B1 (base plate) the radiated noise may be above level A.
which typically occur in most installations, but especially in
battery driven mobile applications. The T series has been
successfully tested to the following specifications:
Electromagnetic Compatibility (EMC)
A suppressor diode or a metal oxide VDR (depending upon
the type) together with an input fuse and an input filter form
an effective protection against high input transient voltages
Electromagnetic Immunity
Table 17: Immunity type tests
Phenomenon
Standard 4
Level
Coupling
Value
Waveform
Source
Test
In
Per-
mode 2
applied
imped.
procedure
oper. form.
Electrostatic
IEC/EN
4
contact discharge
8000 Vp
1/50 ns
330
10 positive and
yes
1
discharge
61000-4-2
air discharge
15000 Vp
10 negative
(to case)
discharges
Electromagnetic
IEC/EN
3
antenna
10 V/m
AM 80%
n.a.
26…1000 MHz
yes
1
field
61000-4-3
1 kHz
Electrical fast
IEC/EN
4
capacitive, o/c
2000 Vp
bursts of 5/50 ns
50
1 min positive
yes
1
transient/burst
61000-4-4
4
direct,
4000 Vp
2.5/5 kHz over
1 min negative
i/c, +i/–i
15 ms; burst
transient per
period: 300 ms
coupling mode
Surge
IEC/EN
3
i/c
2000 Vp
1.2/50
s
12
5 pos. and 5 neg.
yes
1
61000-4-5
4
+i/–i2
surges per coupling
mode
VDE 0160
II
+i/–i
2.3
Uip
0.1/1.3 ms
1700 J
3 pos. and 3 neg.
yes
3
max
impulses
6 repetition
Conducted
IEC/EN
3
i, o, signal wires
10 Vrms
AM 80%
150
0.15...80 MHz
yes
1
disturbances
61000-4-6
(140 dB
V)
1 kHz
1 Normal operation, no deviation from specifications
2 i = input, o = output, c = case.
3 Normal operation, short deviation from specs. possible
4 Related and previous standards are referenced in: Technical Information: Standards
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