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RSD-200C-48

P1-P3P4-P6P7-P7
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
55%
60%
65%
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
RSD-200B-12
RSD-200C-12
RSD-200D-12
RSD-200B-24
RSD-200C-24
RSD-200D-24
RSD-200B-48
RSD-200C-48
RSD-200D-48
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
EFFICIENCY
EFFICIENCY
EFFICIENCY
EFFICIENCY
EFFICIENCY
EFFICIENCY
EFFICIENCY
EFFICIENCY
EFFICIENCY
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
Efficiency vs Load & Vin Curve
The efficiency vs load & Vin curves of each model are shown as below.
200W Railway Single Output DC-DC Converter
RSD-200 series
File Name:RSD-200-SPEC 2018-01-15
Parallel and Series Connection
A.Operation in Parallel
Since RSD-200 series don't have built-in parallel circuit, it can only use external circuits to achieve the redundant operation but not increase the current rating.
1.Add a diode at the positive-output of each power supply (as shown as below), the current rating of the diode should be larger than the maximum output current rating
and attached to a suitable heat sink. This is only for redundant use (increase the reliability of the system) and users have to check suitability of the circuit by themselves.
I/P
I/P
PS2
IN
E PS1
I/P
I/P
-
D2
+
RL
D1
-
+
2.When using S.P.S. in parallel connection, the leakage current will increase at the same time. This could pose as a shock hazard for the user. So please contact the
B.Operation in Series
RSD-200 can be operated in series. Here are the methods of doing it:
1.Positive and negative terminals are connected as shown as below. According to the connection, you can get the positive and negative output voltages for your loads.
supplier if you have this kind of application.
-V
-
I/P
I/P
I/P
+
PS2
-
I/P
E
IN
PS1
+
R
L
RL
COM
+V
Over Voltage Protection
Over Temperature Protection
LED Indicator
The converter shuts off to protect itself when the output voltage drawn exceeds 115~135% of its output rating. It must be repowered on to recover.
The converter shuts off to protect itself when the built-in temperature sensor mounted on the main power transformer senses a high temperature. The output recovers
Equipped with a built-in LED indicator, the converter provides an easy way for users to check its condition through the LED indicator.
Green : normal operation; No signal: no power or failure.
automatically if the temperature drops below the limit.
2.Increase the output voltage (current does not change). Because RSD-200 series have no reverse blocking diode in the unit, you should add an external blocking diode
to prevent the damage of every unit while starting up. The voltage rating of the external diode should be larger than V1+V2 (as shown as below).
-
I/P
+
I/P
PS2
2
V
I/P
-
E
IN
PS1
I/P
1
+
V
-V
D
2
V1+V2
L
R
1
D
+V
Overload Protection
If the output draw up to 105~135% of its output power rating, the converter will go into overload protection which is constant current mode. After the faulty condition
is removed, it will recover automatically. Please refer to the diagram below for the detail operation characteristic. Please note that it's not suitable to operate within
the overload region continuously, or it may cause to over temperature and reduce the life of the power supply unit or even damage it.
0 50 100 150
50
100
Vo(%)
Io(%)
Derating Curve
AMBIENT TEMPERATURE ( )℃
LOAD (%)
100
100
20
40
60
80
-40 20 30 40 50 55 60 70
(HORIZONTAL)
Overload
region
200W Railway Single Output DC-DC Converter
RSD-200 series
File Name:RSD-200-SPEC 2018-01-15
a.Single unit operation
de-rating output current when ambient temperature is between 55-70 , please refer to the de-rating curve as below.℃
If the unit has no iron plate mounted on its bottom, the maximum ambient temperature for the unit will be 55 as operating under full load condition. It requires℃
AMBIENT TEMPERATURE ( )℃
LOAD (%)
100
100
20
40
60
80
-40 20 30 40 50 60 70
(HORIZONTAL)
b.Operate with additional iron plate
the bottom. The size of the suggested iron plate is shown as below. In order for optimal thermal performance, the iron plate must have an even & smooth surface
and RSD-200 series must be firmly mounted at the center of the iron plate.
If it is necessary to fulfil the requirements of EN50155 TX level that operate the unit fully-loaded at 70 , RSD-200 series must be installed onto an iron plate on℃
Suitable installation methods are shown as below. Since RSD-200 is a semi-potted model, its thermal performances for the following installation methods are similar
and share the same derating curve.
The load vs ambient temperature curve is shown as below.
Unit:mm
M4*4
2
360
360
iron plate
200W Railway Single Output DC-DC Converter
RSD-200 series
File Name:RSD-200-SPEC 2018-01-15
Suitable installation methods are shown as below. Since RSD-200 is a semi-potted model, its thermal performances for the following installation methods are similar
and share the same derating curve.
P1-P3P4-P6P7-P7

RSD-200C-48

Mfr. #:
Buy RSD-200C-48
Manufacturer:
Description:
Isolated DC/DC Converters 33.6-62.4Vin 48Vout 4.2A Iso DC-DC
Lifecycle:
New from this manufacturer.
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