What is a parallel power supply?

Parallel power supplies refer to a configuration where multiple DC power supplies are connected in parallel to increase total output current. Each power supply shares the current load, ensuring that no single unit is overloaded. Higher Current Output – Allows for increased power delivery by combining the output of multiple units.

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 10000 power supply be used in parallel?

While the above is true for many power supplies, EA's 10000 series products allow the user to combine different power levels in parallel. The only requirements are that they must have the same voltage rating, and they must be the same family. Examples are pairing PSB with PSBE or PUB and PSI with PS or PU.

Should a power supply be stacked in parallel?

In a wide variety of scenarios, the purchasing team might prefer to have one single power supply on their bill of materials in simple designs and stacked power supplies in parallel from the same type in more powerful ones.

How do I Wire Load sharing with parallel power supplies?

Although there may be more than one way to wire load sharing with parallel power supplies, the star wiring method is typically the one most recommended. In the proceeding figures herein, it is demonstrated three typical star wiring schemes that provide options for any desired level of redundancy: