GE Industrial Solutions QPW050-060 Series - Manual (Page 6)

Data Sheet
February 2, 2011
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
LINEAGE POWER 6
Characteristic Curves
The following figures provide typical characteristics for the QPW060A0G (2.5V, 60A) at 25ºC. The figures are
identical for either positive or negative Remote On/Off logic.
INP
U
T
CU
RRENT,
I i
(A
)
OU
TPU
T
VO
LT
AG
E,
O
n/
O
ff VOL
T
AG
E
V
O
(V
) (5
V
/d
iv
)
V
ON
/OFF
(V
) (1
V/
di
v)
INPUT VOLTAGE, V
O
(V) TIME, t (2.5 ms/div)
Figure 7. Typical Input Characteristic at Room
Temperature. Figure 10. Typical Start-Up Using Remote On/Off,
negative logic version shown.
EF
F
C
IE
N
C
Y
,
η (%
)
O
U
TP
U
T
CU
RR
ENT
, O
U
TPU
T
V
O
L
T
A
G
E
I O
(
A
) (
10
A
/d
iv
)
V
O
(V)
(5
0
m
V/di
v)
OUTPUT CURRENT, I
O
(A) TIME, t (500 μs/div)
Figure 8. Typical Converter Efficiency Vs. Output
current at Room Temperature. Figure 11. Typical Transient Response to Step
change in Load from 50% to 25%of Full Load at
Room Temperature and 48 Vdc Input.
OU
TP
U
T
VOLTAGE
,
V O
(V
) (5
0m
V/
di
v)
O
U
T
P
U
T
CU
RR
E
N
T,
OU
TPU
T
VO
LT
AG
E
I O
(
A
) (
10
A
/d
iv
)
V
O
(V
) (5
0m
V/
di
v)
TIME, t (2.5 s/div) TIME, t (500 μs/div)
Figure 9. Typical Output Ripple and Noise at Room
Temperature and I
o
= I
o, max
.
Figure 12. Typical Transient Response to Step change
in Load from 50% to 75% of Full Load at Room
Temperature and 48 Vdc Input.
36 Vin
48 Vin
75 Vin
0
1
2
3
4
5
6
25 35 45 55 65 75
Io = 60A
Io = 0 A
Io = 30 A
84
86
88
90
92
94
5 10 15 20 25 30 35 40 45 50 55 60
Vi = 36 V
Vi = 48 V
Vi = 75 V