GE Industrial Solutions QRW010-025-035-040 Series - Manual (Page 23)

Lineage Power 23
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 QRW025A0A (VO = 5.0V) module at room temperature (TA =
25 °C)
Figure 37. Input Voltage and Current Characteristics.
Figure 38. Converter Efficiency vs. Output Current.
Figure 39. Output Ripple Voltage (IO = IO, max).
Tested with a 220µF aluminium and a 1.0µF ceramic capacitor
across the load.
Figure 40. Transient Response to Step Decrease in
Load from 50% to 25% of Full Load
(VI = 48 Vdc).
Figure 41. 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 42. Start-up from Remote On/Off (IO = IO, max).
25 30 35 40 45 50 55 60 65 70 75
4
3.5
3
2.5
2
1.5
1
0.5
0
INPUT VOLTAGE, V I (V)
INPUT CURRENT
, I
I
(A)
I O = 25 A
I O = 12.5 A
I O = 0.5 A
0 5 10 15 20 25
95
90
85
80
75
70
OUTPUT CURRENT, I O (A)
EFFICENCY
,
η
(%)
V I = 36 V
V I = 48 V
V I = 75 V
TIME, t (1 µs/div)
OUTPUT V
OL
T
A
GE, V
O
(V)
(50 mV/div)
V I = 36 V
V I = 48 V
V I = 75 V
TIME, t (100 µs/div) OUTPUT CURRENT
, I
O
(A)
( 5 A/div)
OUTPUT V
OL
TA
GE, V
O
(V)
(200 mV/div)
TIME, t (100 µs/div)
OUTPUT CURRENT
, I
O
(A)
( 5 A/div)
OUTPUT V
OL
TA
GE, V
O
(V)
(200 mV/div)
TIME, t (1 ms/div)
REMO
TE ON/OFF
,
V
ON/OFF
(V)
OUTPUT V
OL
TA
GE
, (
(2 V/div)