This type of linear power supply has an extremely simple circuit ... the rectifier turns it into a rough DC, and the capacitors filter the DC to remove as much AC ripple as possible.

How many integrated circuits do you need to build up a power supply that’ll convert mains AC into a stable DC voltage ... (We would toss in a linear regulator somewhere.) Quibbling over circuit ...

Then, we’ll consider the features that you need to consider when selecting a power supply for an automated test system. Linear or switching supply? DC power supplies come in two basic flavours: linear ...