Topward 3203A - Parallel

3000 Series
10
V
A
+S
+
-
V
A
+S
+
-
V2V1
V0=V1+V
2
-S-S
SET : V1 = 30V / 2A
V
10
20
30
40
50
30 25 20 15 10 5
OHM
V1
V2
TOTAL OUTPUT VOLTAGE
(
VO
)
V1 C.V. MODE
V1 C.C. MODE
V2 C.V. MODE
V2 C.C. MODE
SET : V2 = 20V / 3A
30 25 20 15 10 5
OHM
1A
2A
3A
Figure 4 Serial Connection Diagram Figure 5 Serial Voltage/Current Output vs.
Load Change
3.4.2 Parallel
Parallel connection only allows thr connection of two or more power supplies of the same model to
obtain a higher current rating (maximum 24A for this power supply).
Figure 6 shows the parallel connection of two 3303D power supplies. One unit is set at 30V/3A and
the other at 20V/2.5A. Figure 7 shows the parallel connection voltage/current output versus load
changes.
V
A
+
-
V
A
+S
+
-
+S
-S
-S
+
-
I
1
I
2
IO=I1+I2
IO
SET : V1 = 30V / 3.0A
SET : V2 = 20V / 2.5A
A
2A
4A
6A
10
OHM
86421
30
10
20
30
10
OHM
8
6421
V
30
[
V1&V2 C.C. MODE
]
[V1 C.C. MODE
V2 C.V. MODE
]
[
V1&V2 C.V. MODE
]
Figure 6 Parallel Connection Diagram Figure 7 Parallel Voltage/Current Output vs.
Load Change