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

Pfc megapac-el, Pfc megapac-hpel, Power factor corrected ac-dc switchers

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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

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