GE Industrial Solutions QRW010-025-035-040 Series - Manual (Page 20)

Lineage Power 20
Data Sheet
August 24, 2010 36 Vdc - 75 Vdc Input, 1.0 to 12 Vdc Output; 10 A to 40 A
QRW010/025/035/040 Series Power Modules; dc-dc Converters
Characteristic Curves
The following figures provide typical characteristics curves for the QRW035A0F (VO = 3.3 V) module at room temperature (TA
= 25 °C)
Figure 31. Input Voltage and Current Characteristics.
Figure 32. Converter Efficiency vs. Output Current.
Figure 33. Output Ripple Voltage (IO = IO, max).
Tested with a 220µF aluminium and a 1.0µF ceramic capacitor
across the load.
Figure 34. Transient Response to Step Decrease in
Load from 50% to 25% of Full Load
(VI = 48 Vdc).
Figure 35. Transient Response to Step Increase in
Load from 50% to 75% of Full Load
(VI = 48 Vdc).
Tested with a 10µF aluminium and a 1.0µF tantalum capacitor
across the load.
Figure 36. Start-up from Remote On/Off (IO = IO, max).
INPUT VOLTAGE, V I (V)
INPUT CURRENT
, I
I
(A)
30 35 40 45 50 55 60 65 70 75 80
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
I O = 35 A
I O = 25 A
I O = 0 A
EFFICIENCY
,
η
(%)
5 10 15 20 25 30 35
92
90
88
86
84
82
80
V I = 36 V
V I = 48 V
V I = 75 V
TIME, t (2 µs/div)
OUTPUT V
OL
T
A
GE,
V
O
(V) (20 mV/div)
36 V, 35 A
48 V 35 A
75 V 35 A
OUTPUT CURRENT
, I
O
(A)
(10 A/div)
OUTPUT V
OL
T
A
GE, V
O
(V
(100 mV/div)
TIME, t (.1ms/div)
OUTPUT CURRENT
, I
O
(A)
(10 A/div)
OUTPUT V
OL
TA
GE, V
O
(V
)
(100 mV/div)
TIME, t (2 ms/div)
RE
M
O
TE
ON
/O
FF
(V
)
(V
on/
of
f)
O
U
TP
U
T V
O
LT
AG
E,
V
o (
V)
(1
V
/d
iv
)