Set The Cc/Cv Priority Mode - ITech IT6000C Series User Manual

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4.4.1 Set the CC/CV Priority Mode

CV Priority
In CV priority mode, the output is controlled by a constant-voltage feedback
loop, which maintains the output voltage at its programmed setting as long as
the load current remains within the positive or negative current limit settings. CV
priority mode is best suited for use with resistive or high impedance loads, and
loads that are sensitive to voltage overshoots. Do not use CV priority mode with
low-impedance sources such as batteries, power supplies, or large charged
capacitors.
In CV priority mode, the output voltage should be programmed to the desired
value. A positive and negative current limit value should also be set. The current
limit should always be set to a value that is greater than the actual input current
requirement of the external load. The following figure shows the CV priority op-
erating locus of the output. The area in the white quadrants shows the output as
a source (sourcing power). The area in the shaded quadrants shows the output
as a load (sinking power).
The heavy solid line illustrates the locus of possible operating points as a func-
tion of output. As shown by the horizontal portion of the line, the output voltage
remains regulated at its programmed setting as long as the load current remains
within the positive or negative current limit setting. A CV status flag indicates
that the output voltage is being regulated and the output current is within its limit
settings.
Note that when the output current reaches either the positive or negative current
limit, the unit no longer operates in constant voltage mode and the output
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