Alternating current (ac) or direct current (dc) circuits are capable of carrying very different currents, as illustrated by the ratings on the switch in Figure 1. This is why it’s so important for ...

The battery as we know it today was an invention of Italian chemist and physicist Alessandro Volta. He witnessed electricity splitting water into its constituent elements of oxygen and hydrogen and ...

Part 2 provides an analysis of the factors that affect energy savings. Various types of DC power distribution are examined as alternatives to AC distribution for data centers and network rooms. A ...

For motor applications, engineers have several options at their disposal. Typically, engineers can choose between direct-current (DC) or alternating-current (AC) motors. Machine Design has covered the ...

This paper does not address the issue of DC distribution within rack enclosures, using a central rack AC/DC supply instead of separate AC power supplies for IT devices. There are clear trends such as ...