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

UG:119 vicorpower.com Applications Engineering: 800 927.9474 Page 1
PFC MegaPAC-EL TM
PFC MegaPAC-HPEL TM
Power Factor Corrected AC-DC Switchers
USER GUIDE | UG:119
January 2009
Overview
The PFC MegaPAC-EL and PFC MegaPAC-High Power Low Noise (HPEL) combine
power factor correction (PFC) with the configurability of the MegaPAC family of power
supplies. The PFC MegaPAC-EL and PFC MegaPAC-HPEL provide up to 1,600 Watts and
2,400 Watts of output powers respectively and have power densities of 4.3 W/in
3 and
6.5 W/in 3 respectively. The chassis has eight slots and can provide as many as sixteen
outputs. The PFC MegaPAC-EL and PFC MegaPAC-HPEL have the same input and
output connections, mounting points, and the same dimensions: 3.4”H x 6.0”W x 15.6”L
(85,6 mm x 152,4 mm x 396,2 mm). Note that length of older units were 15.5” L
(393,6 mm).
A complete power supply is configured at the factory by selecting and inserting up to
eight (four to six for the PFC MegaPAC-HPEL depending on ConverterPACs used) 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 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. Using the VSPOC configurator tool available on vicorpower.com,
anybody can now configure a PFC MegaPAC-EL/HPEL online.
Manufactured at 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 that is 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
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 11
Instructions
Mechanical Drawings 14
Interface Connections 15
Specifications 22
Power Derating 24
Connector Kit Listing 24
Current Share Boards 25
Output Sequencing 28