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Description:
V48A12M500A 48Vin / 12Vout / 500Watts DC-DC Converter Module
Prototype PCB
Part No.:   V48A12M500A
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Description:   48Vin / 12Vout / 500Watts DC-DC Converter Module
File Size :   194 K    
Page : 8 Pages
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Maker   VICOR [ VICOR CORPORATION ]http://www.vicorpower.com
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CONTROL FUNCTIONS - PR PIN
Parallel Operation
The PR pin supports paralleling for increased power with N+1
(N+M) redundancy and phased array capability. Modules of
the same input voltage, output voltage, and power level will
current share if all PR pins are suitably interfaced.
Compatible interface architectures include the following:
DC coupled single-wire interface.
All PR pins are directly
connected to one another. This interface supports current
sharing but is not fault tolerant. Minus In pins must be tied to
the same electric potential. See Figure 9.
AC coupled single-wire interface.
All PR pins are connected
to a single communication bus through 0.001µF (500V)
capacitors. This interface supports current sharing and is fault
tolerant except for the communication bus. See Figure 10.
+In
PC
+In
Module 1
PR
–In
0.001µF
PC
Module 1
PR
–In
+In
PC
PR
–In
+In
Module 2
(up to 12)
0.001µF
PC
PR
–In
Module 2
(up to 12)
Ground plane
Ground plane
Figure 9—DC
coupled single-wire interface.
+Out
Figure 10—AC
coupled single-wire interface.
Module 1
+S
SC
–S
–Out
+S
–S
+S
• The +Out and –Out power buses should be
designed to minimize and balance parasitic
impedance from each module output to the load.
• The +Sense pins should be tied to the same
point on the +Out power bus; the –Sense pins
should be tied to the same point on the –Out
power bus.
• At the discretion of the power system designer,
a subset of all modules within an array may be
configured as slaves by shorting SC to –S.
• OR’ing diodes may be inserted in series with
the +Out pins of each module to provide
module output fault tolerance.
+Out
+S
SC
–S
–Out
+Sense from
other modules
in the array
+Out
Module 2
+S
SC
–S
–Out
+S
Load
–S
–S
+Out
+S
SC
–S
–Out
Module N+1
Figure 11—N+1
module array output connections.
PIN STYLES *
Designator
(None)
L
S
N
Description
Short solder
Long solder
Short ModuMate
Long ModuMate
Notes
Requires in-board, mounting
Figure 12—OR’ing
diodes connections.
On-board mounting for 0.65" boards
SurfMate or in-board socket mounting
On-board socket mounting
* Pin style designator follows the “A” after the output power and precedes the baseplate designator.
Ex. V375A24C600AN — Long ModuMate Pins
Vicor Corp.
Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
V48A12C500A DC-DC Converter
Rev. 5.3
Page 6 of 8
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