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参数资料
| 型号： | LT1701-7 |
| 厂商： | Power-One |
| 文件页数： | 10/31页 |
| 文件大小： | 0K |
| 描述： | AC-DC BATTERY CHARGER 54.5V 10A |
| 标准包装： | 1 |
| 系列： | * |
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T Series Data Sheet
?
06116a
500 Watt AC-DC Converters
Note: The table Hold-up time also informs about the warning time
L~
4
Vo+
i/V cr
12
28
I inh
of the Power Down signal. For example, if the threshold level V t of
the Power Down signal is set to 43 V and the minimum acceptable
voltage of the load is 38 V, the time between the activation of the
Converter
V inh
power-down signal and the switch-off of the load (550 W) will be
15 ms (= 55 ms – 40 ms).
N~
6
Vo–
22
Series and Parallel Connection
The output of the T Series converters may either be connected
Fig. 13
Inhibit connection
Hold-Up Time
The hold-up time depends upon the output voltage at the time
of failure, the minimum acceptable output voltage, and the load
according to the formula:
V o2 – V o2 min v
t hold = –––––––––––– ? ( C o + C ext )
2 ? P o
where:
in series or in parallel.
Connection in parallel: Current sharing between paralleled
converters is ensured by the output droop (slope)
characteristic.
Note: Several Txx40 battery chargers connected in parallel can be
controlled by a single voltage source or a single sensor wired to
the inputs i/Vcr.
Connection in series: A maximum of two T Series converters
may be connected in series, however the resulting output
voltage of up to 110 V would no longer be SELV.
V o
=
Output voltage at the moment of mains’ failure
V o min v =
Minimum acceptable output voltage
P o
C o
C ext
=
=
=
Average output power during hold-up time
Internal output capacitance
External output capacitance
Examples of t hold are given in the table below:
Table 7: Hold-up time t hold for T1701
V o = 54 V
V o min v
Unit
P o [W]
46 V
43 V 40 V
38 V
100
200
300
400
500
550
164
82
55
41
33
30
219
109
73
55
44
40
270
135
90
67
54
49
302
151
101
75
60
55
ms
V
V o
V t
mains' failure
05049a
low load
heavy load
V o min v
t
warning time
t hold
Fig. 14
Hold-up and warning time with Power Down output signal.
BCD20023 Rev AB, 02-Nov-2010
Page 10 of 31
www.power-one.com
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