likströmsförsedd

Likströmsförsedd is a Swedish term that translates to "DC-powered" or "powered by direct current" in English. It describes a device, system, or circuit that receives its electrical energy from a direct current source. Direct current is characterized by the constant, unidirectional flow of electric charge.

This is in contrast to alternating current (AC), where the direction of current flow periodically reverses. Many electronic devices, such as those found in computers, mobile phones, and other portable electronics, are inherently DC-powered. They often require a power supply unit to convert the AC from the mains electricity grid into the appropriate DC voltage for their internal components. Devices explicitly labeled as likströmsförsedd are designed to operate solely on DC, often with specific voltage requirements. Examples include battery-operated devices, certain types of industrial equipment, and specific scientific instruments. Understanding whether a device is likströmsförsedd is crucial for proper operation and to avoid damage, as connecting a DC-only device to an AC source, or vice-versa, can lead to malfunction or failure.