參數(shù)資料
型號(hào)： CQ1001-9P
元件分類(lèi)： 電源模塊
英文描述： 1-OUTPUT 82 W DC-DC REG PWR SUPPLY MODULE
封裝： METAL, CASE Q01, MODULE
文件頁(yè)數(shù)： 17/25頁(yè)
文件大?。?/td> 747K
代理商： CQ1001-9P
Cassette Style
DC-DC Converters
Q Series
Edition 5/5.2000
24/25
Table 19: Safety concept leading to an SELV output circuit
Conditions
Front end
DC-DC converter
Result
Nominal
Minimum required grade
Maximum DC
Minimum required
Types
Measures to achieve the
Safety status
supply
of insolation, to be pro-
output voltage
safety status of the
specified safety status of the
of the DC-DC
voltage
vided by the AC-DC front
from the front
front end output
output circuit
converter
end, including mains
end 1
circuit
output circuit
supplied battery charger
Mains
Operational (i.e. there is
≤150 V 2
Primary circuit
DQ
Double or reinforced insula-
SELV circuit
≤150 V AC no need for electrical iso-
EQ
tion, based on 150 V AC and
lation between the mains
DC (provided by the DC-DC
supply circuit and the
converter) and earthed case 3
DC-DC converter input
circuit)
Basic
≤60 V
ELV circuit
BQ
Supplementary insulation,
CQ
based on 150 V AC (provided
GQ
by the DC-DC converter)
and earthed case 3
≤75 V 9
Hazardous voltage CQ
Supplementary insulation,
secondary circuit
based on 150 V AC and
double or reinforced insula-
tion 4 (both provided by the
DC-DC converter) and
earthed case 3
Mains
≤60 V
Earthed SELV
BQ
Operational insulation (provi-
≤250 V AC
circuit 3
CQ
ded by the DC-DC converter)
ELV circuit
GQ
Input fuse 5, output suppressor Earthed
≤75 V
Unearthed
CQ
diodes 6, earthed output
SELV circuit
hazardous voltage
circuit 3 and earthed 3 or non
secondary circuit
user accessible case
≤150 V 2
Earthed hazardous BQ, CQ
Double or reinforced
SELV circuit
voltage secondary
DQ, EQ
insulation 4 (provided by
circuit 3 or earthed
GQ
the DC-DC converter)
ELV circuit 3
and earthed case 3
Unearthed
DQ
Supplementary insulation, ba-
hazardous voltage
EQ
sed on 250 V AC and double
secondary circuit
or reinforced insulation 4 (both
provided by the DC-DC
converter) and earthed case 3
Double or reinforced
≤60 V
SELV circuit
BQ, CQ
Operational insulation (provi-
GQ
ded by the DC-DC converter)
≤120 V
TNV-2 circuit
CQ
Basic insulation 4 and
≤150 V 2
Double or reinfor-
DQ
earthed case 7
ced insulated un-
EQ
earthed hazardous
voltage secondary
circuit 8
1 The front end output voltage should match the specified input voltage range of the DC-DC converter.
2 The maximum rated input voltage of the EQ units according to IEC/EN 60950/UL 1950 is 150 V. Power-One specifies the tolerance as
+12%, i.e. 168 V max.
3 The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950.
4 Based on the maximum rated output voltage from the front end.
5 The installer shall provide an approved fuse with the lowest rating suitable for the application in a non-earthed input conductor directly
at the input of the DC-DC converter (see fig.:
Schematic safety concept). For UL’s purposes, the fuse needs to be UL-listed. See also:
Input Fuse.
6 Each suppressor diode should be dimensioned in such a way, that in the case of an insulation fault the diode is able to limit the output
voltage to SELV (
<60V) until the input fuse blows (see fig.: Schematic safety concept).
7 The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950. If the con-
verter case cannot be connected to earth, the front end output circuit has to be insulated from the converter case by at least basic
insulation, based on the maximum nominal output voltage from the front end. The converter case can then be considered to be a
double insulated accessible part.
8 Has to be insulated from earth according to the relevant safety standards, e.g. IEC/EN 60950, by at least supplementary insulation,
based on the maximum nominal output voltage from the front end.
9 The nominal voltage between any input pin and earth can be up to 75 V AC or DC.
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