The effect of a load change to one output upon the other outputs in a system.
On a multiple output power supply, the effect on some outputs while varying the load on other outputs. Our standard is to hold the constant loads at 60% of full load, while varying the measured output from 20 to 100% (of rated load). NOTE: The effect may be extreme if the highest current output is fully loaded, and a quasi-regulated output is lightly or not loaded. A preload may be required if you have this condition in your system.
When a power supply has more than one output, changes in the load for one output cause changes in voltage for the other outputs. To determine cross regulation, you divide the voltage change by its nominal value.