Data sheet – GE Industrial Solutions JNCW016A0R Orca Series User Manual
Page 9
GE
Data Sheet
JNCW016A0R Orca Series; DC-DC Converter Power Modules
36–75 Vdc Input; 28.0Vdc Output; 16Adc Output
August 14, 2013
©2012 General Electric Company. All rights reserved.
Page 9
Feature Description (continued)
Figure 14. Circuit Configuration to Increase Output
Voltage.
This limit includes any increase in voltage due to remote-
sense compensation and output voltage set-point
adjustment (trim). See Figure 11.
Although the output voltage can be increased by both the
remote sense and by the trim, the maximum increase for
the output voltage is not the sum of both.
The maximum increase is the larger of either the remote
sense or the trim. The amount of power delivered by the
module is defined as the voltage at the output terminals
multiplied by the output current. When using remote sense
and trim, the output voltage of the module can be
increased, which the same output current would increase
the power output of the module. Care should be taken to
ensure that the maximum output power of the module
remains at or below the maximum rated power.
Examples:
To trim down the output of a nominal 28V module, without –
T option, to 16.8V
%
40
100
28
8
.
16
28
%
k
R
down
adj
5
.
0
2
40
100
_
To trim up the output of a nominal 28V module, without –T
option, to 30.8V
%
0
.
10
100
28
28
8
.
30
%
10
)
10
2
(
100
(
10
225
.
1
)
10
100
(
28
_ up
adj
R
R
adj_up
= 239kΩ
Active Voltage Programming
For both the JNCW016A0Rx and JNCW016A0Rx-T, a Digital-
Analog converter (DAC), capable of both sourcing and
sinking current, can be used to actively set the output
voltage, as shown in Figure 15. The value of R
G
will be
dependent on the voltage step and range of the DAC and
the desired values for trim-up and trim-down
∆%.
Please
contact your GE technical representative to obtain more
details on the selection for this resistor.
Figure 15. Circuit Configuration to Actively Adjust the
Output Voltage.
AC+DC Load Capability
The JRCW016A0Rx is compatible with load profiles as shown
in Figure 16.
Figure 16. AC-DC Load Profile
The output voltage peak deviation shall not exceed the peak
values listed in the Electrical Specifications Table.
Tunable Loop
The JNCW016A0Rx-T modules have a new feature that
optimizes transient response of the module called Tunable
Loop. External capacitors are usually added to the output of
the module for two reasons: to reduce output ripple and
noise and to reduce output voltage deviations from the
steady-state value in the presence of dynamic load current
changes.