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參數(shù)資料
| 型號： | LS2660-9EPD5B1 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 100 W AC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 14/33頁 |
| 文件大小： | 438K |
| 代理商： | LS2660-9EPD5B1 |
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S Series Data Sheet
100 Watt AC-DC and DC-DC Converters
APR 26, 2006 revised to SEP 25, 2006
Page 21 of 33
www.power-one.com
AC-DC
front
end
DC-DC
con-
verter
Mains
Battery
SELV
Earth connection
+
–
~
10044_082605
Max. 150 VAC or VDC for AK, BK
Max. 250 VAC or VDC for CK, DK, EK, FK, LK
Fuse
Max. 150 VAC or VDC for AK, BK
Max. 250 VAC or VDC for CK, DK, EK, FK, LK
Table 15: Safety concept leading to a SELV output circuit
Conditions Front end
Result
DC-DC converter
Result
Nominal
Minimum required grade
DC output voltage
Minimum required
Types
Measures to achieve the
Safety status
supply
of insulation, to be pro-
from the front end
safety status of the
specified safety status of
of the DC-DC
voltage
vided by the AC-DC front
front end output
the output circuit
converter
end, including mains
circuit
output circuit
supplied battery charger
Mains
Functional
≤100 V. The
Primary circuit
AS
a) Double or reinforced
SELV circuit
≤150 VAC (no electrical insulation
nominal voltage
BS
insulation based on
between the mains
between any
the mains voltage
supply voltage and the
output pin and
(provided by the DC-DC
DC-DC converter input)
earth is
≤150 V
converter) AND
(AC or DC)
b) earthed case
3
Mains
≤250 V The
CS
≤250 VAC
nominal voltage
DS
between any
ES
output pin and
FS
earth is
≤250 V
(AC or DC)
Basic
≤250 V
Unearthed
AS
a) Supplementary insulation,
hazardous voltage
BS
based on 250 VAC AND
secondary circuit
CS
b) double or reinforced
DS
insulation
2 (provided by
ES
DC-DC converter) AND
FS
c) earthed case
3
Earthed
a) Double or reinforced
hazardous voltage
insulation
2 (provided by
secondary circuit
the DC-DC converter) AND
b) earthed case
3
Double or reinforced
≤60 V
SELV circuit
4
≤120 V
TNV-3 circuit
Basic insulation (provided
by the DC-DC converter)
4
1 The front end output voltage should match the specified input voltage range of the DC-DC converter.
2 Based on the maximum nominal output voltage from the front end.
3 The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950.
4 Earthing of the case is recommended, but not mandatory.
Safety of Operator-Accessible Output Circuits
If the output circuit of a DC-DC converter is operator-accessible,
it shall be a SELV circuit according to safety standard
IEC/EN 60950.
The
following
table
shows
some
possible
installation
configurations, compliance with which causes the output circuit
of a DC-DC converter to be a SELV circuit according to IEC/EN
60950 up to a configured output voltage (sum of nominal voltages
if in series or +/– configuration) of 36 V.
Fig. 23
Schematic safety concept.
Use earth connection as per the table below.
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