GE Industrial Solutions QBVS050A0B Barracuda Series - Manual (Page 5)

GE
Data Sheet
QBVS050A0B Barracuda Series; DC-DC Converter Power Modules
52-60Vdc Input; 12.0Vdc, 50.0A, 600W Output
October 31, 2013 ©2012 General Electric Company. All rights reserved. Page 5
Characteristic Curves, 12.0V
dc
Output
The following figures provide typical characteristics for the QBVS050A0B (12.0V, 50A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
IN
PUT CURRE
N
T,
I i
(A
)
EFFC
IE
NC
Y,
η
(%)
INPUT VOLTAGE, V
O
(V) OUTPUT CURRENT, I
O
(A)
Figure 1. Typical Input Characteristic. Figure 2. Typical Converter Efficiency vs. Output Current.
OUT
PUT
VOL
TA
G
E,
V O
(V
) (
50
m
V/
di
v)
OUTPUT
CURRENT
OU
TPUT
VO
LT
AGE
I
O
(A
) (
10
A/div
)
V O
(V
) (
200
mV/d
iv
)
TIME, t (2s/div) TIME, t (500 μs/div)
Figure 3. Typical Output Ripple and Noise, I
o
= I
o,max
C
O
=750µF.
Figure 4. Typical Transient Response to 0.1A/µs Step Change
in Load from 50% to 75% to 50% of Full Load, C
O
=750µF and
48 V
dc
Input.
O
UT
PUT
V
O
LTA
G
E
IN
PUT
VO
LT
AG
E
V
O
(V
) (5V/div)
V
IN
(V
) (
20
V/d
iv
)
OUTPUT VO
LT
AGE
On/Off
VOLTA
G
E
V
O
(V) (5
V/div)
V
ON
/O
FF
(V)
(2
V/d
iv)
TIME, t (5 ms/div) TIME, t (5 ms/div)
Figure 5. Typical Start-Up Using Vin with Remote On/Off
enabled, negative logic version shown, I
o
= I
o,max
.
Figure 6. Typical Start-Up Using Remote On/Off with Vin
applied, negative logic version shown I
o
= I
o,max
.