GE Industrial Solutions QBVW033A0B Barracuda Series - Manual (Page 5)

GE
Data Sheet
QBVW033A0B Barracuda Series; DC-DC Converter Power Modules
36-75Vdc Input; 12.0Vdc, 33.0A, 400W Output
May 21, 2013 ©2012 General Electric Company. All rights reserved. Page 5
Characteristic Curves, 12V
dc
Output
The following figures provide typical characteristics for the QBVW033A0B (12V, 33A) at 25ºC. The figures are identical for either
positive or negative Remote On/Off logic.
I
N
PUT
CURREN
T, I
i
(A
)
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
TAGE,
V O
(V
) (5
0m
V/d
iv
)
OU
TPU
T CURRENT
OUT
PUT
VO
LT
AGE
I
O
(A
) (1
0A
/d
iv
)
V O
(V) (
20
0m
V/di
v)
TIME, t (2s/div) TIME, t (500 μs/div)
Figure 3. Typical Output Ripple and Noise, I
o
= I
o,max
. Figure 4. Typical Transient Response to 0.1A/µs Step Change
in Load from 50% to 75% to 50% of Full Load, Co=470µF and
48 Vdc Input.
O
UT
PUT
V
O
LTA
G
E I
N
PU
T V
O
LT
AG
E
V
O
(V
) (5
V/d
iv)
V
IN
(V
) (2
0V
/d
iv
)
OUTPUT VO
LT
AGE
On
/Of
f VOL
TAGE
V
O
(V
) (5V/
di
v)
V
ON
/O
FF
(V)(2
V/di
v)
TIME, t (20 ms/div) TIME, t (5 ms/div)
Figure 5. Typical Start-Up Using Vin with Remote On/Off
enabled, negative logic version shown. Figure 6. Typical Start-Up Using Remote On/Off with Vin
applied, negative logic version shown.