Direct coupling

Direct coupling is like two Legos stuck together without anything in between them. If you press them together really hard, they will stick together and won't come apart easily.

In electronics, direct coupling means connecting two circuits or components directly, without any other parts in between them. This is like connecting two Legos together without using any other bricks or pieces.

Direct coupling is used to pass signals or power from one circuit to another. It's like passing a toy car from one person's hand to another without any stops in between.

However, sometimes it's not always the best way to connect circuits together because it can cause unwanted effects, like distorting the signal or damaging the components. It's important to choose the right type of coupling for the job.