BASIC OPERATION
48
NOTE: The current source does not require or
use Sense leads to improve the accuracy of the
current source. When selecting 4-wire sensing, the
sensing leads must be connected, otherwise it will
cause incorrect results. Please refer to page 35 for
the connection method. If there is a possibility that
the sensing lead may disconnect, overvoltage
protection (OVP) can be used.
V/I Output Range
Source or
Sink
According to the settings and connection with the
load, the GSM can operate in any one of the four
quadrants. The figure below shows the four
operating quadrants of the GSM. When operating in
the first (I) or third (III) quadrant, the GSM operates
as a power source (V and I have the same polarity).
As a power source, the GSM provides power to the
load.
When operating in the second quadrant (II) or the
fourth quadrant (IV), the GSM operates as a sink (the
polarity of V and I are opposite). As a sink, it is
consuming energy, not providing energy.