7 Parallel Operation (Notes)

The output terminals of up to four modules may be connected in parallel. The expected current sharing accuracy is 10% at maximum load. To ensure current sharing, the parallel terminal of every power supply module must be connected to form a common bus. It is recommended to make these connections relatively short.

The remote sense terminals may remain unconnected. However, for the best output voltage regulation, it is recommended that the remote sense terminal of each of the paralleled sets of power supplies be connected to a single point as close as possible to the positive load terminal or point where the voltage regulation needs to be maintained. Similarly, it is recommended that the remote sense return terminal of each power supply be connected to a single point as close as possible to the negative load terminal.

The R-ADJUST function may be used in a system of paralleled modules. The sync function is described in the application notes. The specified sync input signal can be applied to each of the paralleled modules.

For the best performance, phase shift the sync signal between modules. The sync functionality remains the same for a system of paralleled modules. The use of the sync function is optional for single and or paralleled operation. The specified sync input signal can be applied to any one of the paralleled modules.