Characteristic curves (continued), Car1212dc series dc-dc converter, Data sheet – GE Industrial Solutions CAR1212DC series User Manual
Page 8: Input: -36v, Output: 12v, Or 5 v
GE
Data Sheet
CAR1212DC series DC-DC converter
Input: -36V
D C
to -75V
DC
; Output: 12V
DC
@ 1200W; 3.3V
DC
or 5 V
DC
@ 1A
October 21, 2013
©2013 General Electric Company. All rights reserved.
Page 8
Characteristic Curves (continued)
The following figures provide typical characteristics for the CAR1212DC converter at 25
o
C.
O
UT
PUT
VO
LT
AG
E
OU
U
TP
U
T
CU
RR
ENT
V
O
(V
) (
20
0m
V/d
iv
)
I
O
(I
) (
50
A/d
iv
)
OU
TP
U
T VOLT
AG
E
OU
UT
PUT
C
UR
RE
N
T
V
O
(V
) (
20
0m
V/
di
v)
I
O
(I
) (
50
A/
di
v)
TIME, t (1ms/div)
TIME, t (1ms/div)
Figure 7. Transient response 12V
DC
output
load step 10 – 60A, V
IN
= -48V
DC
.
Figure 8. Transient response 12V
DC
output
load step 50 – 100A, V
IN
= -48V
DC
.
S
YS
TEM
C
U
RREN
T
CONDITION
No Load
Max Load
V
OUT
@ TURN ON
32.7V
DC
32.6V
DC
V
OUT
@ TURN OFF
29.5V
DC
30.5V
DC
INDIVIDUAL UNIT CURRENTS AND % SHARE
Table 9. Current share between two modules
Table 10. Input Turn OFF and Turn ON.
OU
TP
U
T V
OLT
AG
E
OU
U
TP
U
T CU
RR
ENT
V
O
(V
) (
5V
/d
iv
) I
O
(I)
(10
0A
/di
v)
OU
TP
U
T V
OLT
AG
E
INP
U
T V
O
LT
AG
E
V
O
(V
) (
5V
/d
iv
)
V
IN
(V
) (
20
V/d
iv
)
TIME, t (500ms/div)
TIME, t (1ms/div)
Figure 11. Overload: output short circuit performance, the unit is in
hiccup mode. , V
IN
= -48V
DC
.
Figure 12. Holdup time: full load Vin = -48V
DC
duration: 2.84ms
Io
PS1 I
1
(A) PS2 I
2
(A)
% Share
0 A
-
-
-
20 A
8.10
11.80
18.59
40 A
17.30
22.70
13.50
60 A
28.30
31.40
5.19
80 A
39.40
40.80
1.75
100 A
50.00
50.30
0.30
120 A
60.90
59.60
1.08
140 A
70.40
69.40
0.72
160 A
80.90
79.70
0.75
180 A
91.40
89.50
1.05
200 A
101.90
98.80
1.54