What is a redundant power supply and why is it called a diode power supply

Explain the requirement of the redundant power supply

It’s a Diode coupler. which is used when two independent power supplies used in redundant mode. Benefits suppose one power supply failed voltage does not come to reverse and avoid voltage drop. It is a redundant module that takes two input power supply (D c) and gives single output DC supply. Diode Oring unit used for DC power supply from two independent DC power source.

A redundancy module with protective coating can be used as a parallel connection of two power supply units that are decoupled from one another. It’s a module which use for decouple two power supplies of same type. In the event of an internal fault of one device, the other device automatically takes over the complete power supply without interruption and vice versa…