Vicor Mini MegaPAC AC-DC Switcher User Manual

Mini megapac, Ac-dc switcher, User guide | ug:110

UG:110

vicorpower.com

Applications Engineering: 800 927.9474

Page 1

Mini MegaPAC

AC-DC Switcher

USER GUIDE | UG:110

November 2013

Overview

The Mini MegaPAC AC-DC switcher allows users to instantly configure high efficiency,
off-line power supplies that operate on either 115 or 230 Vac (47-500 Hz),

or 260-380 Vdc. Although small in size, (3.4"H x 6.0"W x 9.5”L), (85,8 x 153,4 x 241,3 mm),
the Mini MegaPAC provides up to 1,000 W of output power. The chassis has five slots
and can provide up to ten isolated outputs.
A complete power supply is configured at the factory by selecting and inserting up
to five same length slide-in output assemblies called ConverterPACs. ConverterPACs
incorporate one or two VI-200/VI-J00 and/or Maxi Vicor DC-DC converters and are
available in a wide array of output voltages 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. For detailed information about the ConverterPACs, refer
to the ConverterPAC data sheets. The ConverterPACs used in the Mini MegaPAC use VE-
2xx and VE-Jxx modules. In addition, there is a four output model called a FlexPAC that
uses discrete circuits to support low power needs.
Manufactured at Westcor, a division of Vicor, the entire family of MegaPAC power
supplies is completely user-configurable. If output requirements change, i.e., more
power or a different output voltage is needed, upgrading is easy: simply unlock a single
screw and replace the slide-in ConverterPAC assembly with one of the same length
and has the desired voltage power rating. For additional flexibility, ConverterPACs
can be connected in parallel to increase output power (booster ConverterPACs), or in
series for higher voltages (total output voltage should not exceed 400 V). The driver
is to the left of the boosters when looking at the output end of the supply. A user-
friendly interface provides control and output sequencing capability, in addition to
useful status indicators. Please consult our Applications Engineering Department if you
have other special requirements. Using the VSPOC configurator tool available on