DCsyöttöjä

DCsyöttöjä refers to DC power supplies in Finnish. A DC power supply is an electrical device that supplies electric power in the form of direct current (DC) for an electronic device. Direct current is an electric current which is constant in magnitude and direction. This is in contrast to alternating current (AC), where the direction of the current is reversed periodically. DC power supplies are essential components in almost all electronic devices, converting mains electricity (typically AC) into the low-voltage DC required by circuits.

There are various types of DC power supplies. Linear power supplies are known for their low noise but can be inefficient, especially when there's a large difference between the input and output voltages. Switched-mode power supplies (SMPS) are much more efficient and compact, but can generate more electrical noise. Battery packs also serve as DC power sources for portable electronics.

The output voltage of a DC power supply is crucial for the operation of the connected device. This voltage is usually specified by the manufacturer of the electronic equipment. For example, a smartphone charger typically provides 5 volts DC, while a laptop might require 19 volts DC. Ensuring the correct DC voltage is supplied is vital to prevent damage to the electronic device. Many DC power supplies also offer current limiting features to protect against overloads.