Devices that utilize power electronics technology (namely, technology for controlling current and voltage as well as supplying required electrical power) are called power electronics devices. It is mainly device that consumes a large amount of power (such as trains, electric vehicles, and natural-energy supply units).
Since power electronics technology utilizes energy efficiently, it is gaining attention in various fields from the viewpoint of environmental protection. Accordingly, it has also begun to be applied in products such as household electrical appliances.
