GE Industrial Solutions JRW450U Orca Series - Manual (Page 5)

GE
Data Sheet
JRCW450U Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 48.0Vdc Output; 450W Output
June 7, 2013 ©2012 General Electric Company. All rights reserved. Page 5
Characteristic Curves
The following figures provide typical characteristics for the JRCW450U (48V, 9.4A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
EFFIC
IE
N
CY (
%
)
On
/O
ff VO
LTAGE
O
U
TP
UTVOL
TAGE
V
ON/OF
F
(V) (
5V/div
)
V
O
(V)
(20V/
div)
OUTPUT CURRENT, I
o
(A) TIME, t (50ms/div)
Figure 1. Converter Efficiency versus Output Current. Figure 4. Typical Start-Up Using negative Remote On/Off;
C
o,ext
= 440µF.
O
U
TP
UT VOLT
AGE
V O
(V
) (
100m
V/
div
)
INP
U
T VOL
TAGE
OUTPUT
VOL
TA
G
E
V
in
(V)
(2
0V/di
v)
V
O
(V
) (2
0V
/d
iv)
TIME, t (1s/div) TIME, t (50ms/div)
Figure 2. Typical Output Ripple and Noise at Room
Temperature and 48Vin; I
o
= I
o,max
; C
o,ext
= 440µF.
Figure 5. Typical Start-Up from V
IN
, on/off enabled prior to
V
IN
step; C
o,ext
= 470µF.
OUT
PUT
CUR
RENT
OUT
PUT
VOLTA
G
E
I
O
(A) (5A/
di
v)
V
O
(V
) (
500m
V/
div)
OUTPUT
CURREN
T
OUTPUT VOLTA
G
E
I
O
(A) (5A/
di
v)
V
O
(V
) (
500m
V/
div)
TIME, t (1ms/div)
TIME, t (1ms/div)
Figure 3. Dynamic Load Change Transient Response from
25% to 50% to 25% of Full Load at Room Temperature and
48 Vin; 0.1A/uS, C
o,ext
= 440µF.
Figure 6. Dynamic Load Change Transient Response from 50
% to 75% to 50% of Full Load at Room Temperature and 48
Vin; 0.1A/uS, C
o,ext
= 440µF.