What is a parallel power supply configuration?

A basic understanding of such configuration is when the power supplies are designed to decrease the output voltage with increased load current. This allows two or more power supplies to “meet” with increased load current at the same voltage level and provide the power in parallel as seen in figure 6.

Should power supplies be used in parallel?

Using power supplies in parallel is an attractive and viable technique to realize benefits in inventory and stocking, product commonality, additional output current, and N+1 redundancy.

Why do designers connect power supplies in parallel?

Designers connect power supplies in parallel to obtain a total output current greater than that available from one individual supply as well as to provide redundancy, enhance reliability, avoid PCB thermal issues and boost system efficiency.

What are the selection requirements of power supplies in parallel operation?

The selection requirements of power supplies in parallel operation are similar to those for redundancy, but the control function differs. It is obvious, in this type of application a single unit is not sufficient to provide desired power needs, so two or more power supplies in parallel are expected to be always loaded.

Can a power supply be connected in parallel?

In many test and industrial applications, a single power supply may not provide enough current to meet system demands. Connecting power supplies in parallel is a practical solution that allows users to increase available current while maintaining a stable voltage.

Why should a power module be parallel?

It also discusses factors affecting a power module’s ability to allow parallel or series connections for a reliable design. One of the primary reasons to parallel power modules is to increase the current and power output capability above the level that a single module can safely supply. The second most common reason to parallel is redundancy.