LH1781-2R Просмотр технического описания (PDF) - Power-One Inc.
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LH1781-2R Datasheet PDF : 4 Pages
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Electrical
Accessory Products
Temperature Sensors
Fail Safe Operation
To prevent overcharging of the battery but still maintain a
minimum charging in case of interruption of the sensor sig-
nal cable to the power supply, Power-One has designed
units with a special nominal output voltage setting. These
units differ from the respective standard units described in
the datasheet in the nominal output voltage and output
current settings. Without the sensor connected to the R pin
the output voltage will be higher than the nominal battery
voltage to avoid a discharging of the battery but still lower
than the theoretically needed float charge voltage. As soon
as the sensor is connected to the R pin the output voltage
will be set to the correct value.
Table 3:
Nominal battery voltage
[V]
12
24
36
48
60
Output voltage setting
(20°C) [V]
12.84
25.68
38.52
51.36
64.2
Tabel 4: Special units for battery charging
Ubatt [V]
12
Po 50 Watt
LM 1781-7R
Po 70 Watt
LH 1781-2R
24
LM 1782-7R
LH 1782-2R
36
LM 1783-7R
LH 1783-2R
48
LM 1784-7R
LH 1784-2R
60
LM 1785-7R
LH 1785-2R
Po 100 Watt
LS 4740-7R
LS 5740-7R
LS 5740-7R
Po 150 Watt
LK 4740-7R
LK 5740-7R
LK 5740-7R
Po 250 Watt
LKP 5740-6R
LKP 5740-6R
Higher power requirements can be covered by paralleling
of these units. Complete microprocessor controlled sys-
tems of un-interuptable power suplies (UPS) are realized
by our Applications Center. Please consult your local
Power-One representant.
Edition 5/06.2001
4/4
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