One of the boards of the power supply module rectifies the incoming line voltage to a high DC voltage (about 400 volts). The second board then does DC to DC conversion to the desired output.

There are countless variants of portable power supply devices that can be used to power up most microcontroller-based projects on a variety of websites. The latest addition to my collection is a cheap ...

Another answer is to find a higher voltage supply and mate it with a cheap power supply module. We’ve also seen non-PC power supplies put in a PC case.

The Arduino PLCs feature easy network connection via three communication protocols: Ethernet, the standard protocol for LANs; multi-point RS-485, which excels at communication over long distances and ...

In addition, L-com offers three new power supplies that convert power from AC to DC to run PLCs and other devices for use in industrial automation. The three options consist of a 30-watt power ...