Current Sharing
Overview
Release 1.0
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Section 3. Current Sharing
Overview
Power supplies equipped with the CANbus interface will allow current sharing
between units connected in parallel. Current sharing can use a maximum of 5
supplies, including the master. All power supplies must be the same model. Every
unit must have a unique address, if they do not then they will automatically readdress
themselves.The slave units are shipped with the current share feature already
enabled.
Figure 3.1
Connections for Current Share Operation
Theory of
Operation
Power supplies may be connected in parallel to supply a large current to a load.
Typically, because of differences in the load connections, each power supply may
provide different amounts of current to the load. The function of current sharing is
to even out the current provided by each power supply.
When multiple power supplies are configured for current sharing, the master supply
will make small changes to the slave’s voltage and current settings to equalize the
current draw from each.
Note: Slave units will not current share with master units with firmware previous to
version 5.000.
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TM-XDSL-01XN.book Page 19 Tuesday, November 5, 2002 3:22 PM
