Load Connection
TM-F1OP-C1XN-01 2-21
Connecting Multiple Loads
Proper connection of distributed loads is an important aspect of power
supply use. Two common methods of connection are the parallel power
distribution method and the radial power distribution method.
Parallel Power Distribution
This distribution method involves connecting leads from the power
supply to one load, from that load to the next load, and so on for each load
in the system. This method results in the voltage at each load depending
on the current drawn by the other loads and allows DC ground loops to
develop. Except for low current applications, we do not recommend using
this method.
Radial Power Distribution Method
To connect distributed loads, we recommend that you use radial power
distribution. With this method, you connect power to each load
individually from a single pair of terminals designated as the positive and
negative distribution terminals. These terminals may be the power supply
output terminals, the terminals of one of the loads, or a distinct set of
terminals especially established for distribution use. Connect the sense
leads to these terminals to compensate for losses and minimize the effect
of one load upon another.
Figure 2-9 and Figure 2-10 show recommended load and sensing
connections for multiple loads. Local sense lines shown are default J10
sense connections. See “Local and Remote Sensing” on page 2–23 for
more information about using remote sensing, and about grounding the
sense line shield.
TM-F1OP-C1XN-01.book Page 21 Thursday, October 25, 2007 9:04 PM
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