GE Industrial Solutions JRCK017A0S32R0 Orca Series - Manual (Page 9)

GE
Data Sheet
JRCK017A0S32R0 Orca Series; DC-DC Converter Power Modules
36–62 Vdc Input; 32.0Vdc Output; 17.0Adc Output
October 11, 2013 ©2012 General Electric Company. All rights reserved. Page 9
Feature Description (continued)
Figure 14. Circuit Configuration to Increase Output Voltage.
The voltage between the Vo(+) and Vo(-) terminals must not
exceed the minimum output overvoltage shut-down value
indicated in the Feature Specifications table. 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 32V 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 32V 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 JRCK017S32R0x and JRCK017S32R0x-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 JRCK017S32R0x 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 JRCK017S32R0x-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.
Adding external capacitance however affects the voltage