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44
Advanced Applications
If you wish to distribute the load to multiple channels, it is
recommended to set the current limit of the channel that
is to supply the main current to a fraction of the current.
This approach handles the semiconductor with care and
improves the heat dissipation, as the power loss is distrib-
uted more evenly.
7.3 Multi-Quadrant Operation
In general, operating in multi-quadrant mode requires a
multi-quadrant power supply. The R&S®HMP power supply
is only a 1-quadrant power supply which is able to provide
positive voltage or positive current (quadrant I). However,
a negative voltage can be generated by means of a special
connection of two channels (common GND). Fig. 7.5 shows
a connection example for a R&S®HMP power supply. This
type of connection can generally reach a range between
-32V and +32V. This does not refer to a negative display
on the screen, but rather to a connection with an identical
voltage range. However, a negative current (current sink) is
not possible.
Fig. 7.4: Power supply quadrants diagram
Fig. 6.11: Multi-Quadrant connection
A negative voltage range can only be generated by means of a
special connection of two channels. A negative voltage range can
not be generated by one channel.
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