Vicor Westcor PFC MegaPAC Power Factor Corrected AC-DC Switchers - Manual

UG:105 vicorpower.com Applications Engineering: 800 927.9474 Page 1
Westcor PFC MegaPAC TM
Power Factor Corrected AC-DC Switchers
USER GUIDE | UG:105
May 2013
Overview
The PFC MegaPAC family of supplies combine power factor correction (PFC) with the
inherent configurability of all Westcor MegaPAC products. This design guide covers 4
model variations:
1. PFC MegaPAC
1600 W max, standard chassis
2. PFC MegaPAC MI 1600 W max, rugged COTS chassis
3. PFC MegaPAC High Power 2400 W max, standard chassis
4. PFC MegaPAC High Power MI 2400 W max, rugged COTS chassis
All PFC MegaPACs have the same input and output connections, mounting points, and
the same dimensions:
The extended length (-EL) chassis is covered in a different design guide
A complete power supply is configured at the factory by selecting and inserting up to
eight same length slide-in output assemblies called ConverterPACs. ConverterPACs
incorporate one (or more) VI-200/VI-J00), Maxi Vicor DC to DC converters and/or
FlexPACs and are available in a wide selection of output voltage and power levels.
The net result is a power supply that offers the advantages of a custom supply, but is
assembled from standard and modular building blocks. Currently, the standard power
chassis uses only FlexPACs and ConverterPACs with VI-200/VI-J00 Vicor DC to DC
converters while the high power chassis accepts FlexPACs and ConverterPACs with
both VI-200/VI-J00 and/or Maxi module. (Refer to page 6 for a brief overview of the
ConverterPACs used.) Using the PowerBench configurator tool available on
www.vicorpower.com , anybody can now configure a PFC MegaPAC (and other Westcor
power supplies) online.
Contents Page
Overview 1
of Product
Mechanical 3
Considerations
MegaPAC 3
Do’s and Don’ts
Technical Description
4
Configuring and
5
Reconfiguring
MegaPACs
ConverterPAC 6
Description
ConverterPAC 10
Output and Connector
Pin Identification
Quick Install 12
Instructions
Mechanical Drawings 15
Interface Connections 16
Specifications 23
Power Derating 25
Connector Kit Listing 25
Current Share Boards 26
Low Leakage Version 29
Output Sequencing 30