GE
Data Sheet
QPW050/060 Series Power Modules; DC-DC converters
36-75Vdc Input; 1.2Vdc to 3.3Vdc Output
October 5, 2015 ©2012 General Electric Company. All rights reserved. Page 7
Characteristic Curves
The following figures provide typical characteristics for the QPW060A0Y (1.8V, 60A) at 25ºC. The figures are identical for
either positive or negative Remote On/Off logic.
INPUT CURRENT, I
i
(A)
OUTPUT VOLTAGE On/Off VOLTAGE
V
O
(V) (5V/div) V
ON/OFF
(V) (0.5V/div)
INPUT VOLTAGE, V
O
(V) TIME, t (2.5 ms/div)
Figure 13. Typical Input Characteristic at Room
Temperature.
Figure 16. Typical Start-Up Using Remote On/Off, negative
logic version shown.
EFFCIENCY, (%)
OUTPUT CURRENT, OUTPUT VOLTAGE
I
O
(A) (10A/div) V
O
(V) (50mV/div)
OUTPUT CURRENT, I
O
(A) TIME, t (500 s/div)
Figure 14. Typical Converter Efficiency Vs. Output current
at Room Temperature.
Figure 17. Typical Transient Response to Step
change in Load from 50% to 25%of Full Load at
Room Temperature and 48 Vdc Input.
OUTPUT VOLTAGE,
V
O
(V) (20mV/div)
OUTPUT CURRENT, OUTPUT VOLTAGE
I
O
(A) (10A/div) V
O
(V) (50mV/div)
TIME, t (2.5s/div)
TIME, t (500 s/div)
Figure 15. Typical Output Ripple and Noise at Room
Temperature and I
o
= I
o, max
.
Figure 18. Typical Transient Response to Step change in
Load from 50% to 75% of Full Load at Room Temperature
and 48 Vdc Input.
0
0.5
1
1.5
2
2.5
3
3.5
4
25 35 45 55 65 75
Io = 0 A
Io = 30 A
Io = 60 A
81
83
85
87
89
91
5 1015202530354045505560
Vi = 36 V
Vi = 48 V
Vi = 75 V
