GE Industrial Solutions EHW007A0B Series (Eighth-Brick) - Manual (Page 5)

Data Sheet
October 2, 2009
EHW007A0B Series Eighth-Brick Power Modules
36–75Vdc Input; 12.0Vdc Output; 7A Output Current
LINEAGE POWER 5
Characteristic Curves
The following figures provide typical characteristics for the EHW007A0B (12.0V, 7A) at 25 o C. The figures are
identical for either positive or negative remote On/Off logic.
70
75
80
85
90
95
0 1 2 3 4 5 6 7
Vin = 48V Vin = 75V
Vin = 36V
E
F
F
ICI
E
N
CY,
η
(%
)
OUTPUT CURRENT, I
O
(A)
OU
TPU
T
CURR
EN
T
O
U
TPU
T
VOLTA
G
E
Io
(A
) (
2A/d
iv
)
V
O
(V
) (20
0m
V
/d
iv
)
TIME, t (100µs/div)
Figure 1. Converter Efficiency versus Output Current. Figure 4. Transient Response to 1.0A/µS Dynamic
Load Change from 50% to 75% to 50% of full load.
O
U
TP
U
T
VOLTAGE
V
O
(V
) (5
0m
V
/d
iv)
TIME, t (2 μs/div)
OU
TPU
T
VO
LT
AG
E
On/
O
ff
VO
LT
AG
E
V
O
(
V
) (
5V/
di
v)
V
O
n/O
ff
(
V
) (5V/
di
v)
TIME, t (5ms/div)
Figure 2. Typical output ripple and noise (V IN = V IN,NOM ,
I
o
= I
o,max
).
Figure 5. Typical Start-up Using Remote On/Off,
negative logic version shown (V
IN
= V
IN,NOM
, I
o
= I
o,max
).
O
U
TPU
T
CURR
EN
T
O
U
TPU
T
VOL
T
A
G
E
Io
(A
) (
2
A
/d
iv
)
V
O
(V
) (
20
0mV
/d
iv
)
TIME, t (200µs/div)
O
U
TP
U
T
V
O
LT
A
G
E
IN
PU
T V
O
LTAG
E
V O
(V
) (5
V
/d
iv)
V
IN
(
V
) (20V
/d
iv
)
TIME, t (20ms/div)
Figure 3. Transient Response to 0.1A/µS Dynamic
Load Change from 50% to 75% to 50% of full load.
Figure 6. Typical Start-up Using Input Voltage (V IN =
V IN,NOM , I o = I o,max ).