teholähteestä

Teholähde is a Finnish term that translates to "power supply" in English. It refers to a device responsible for converting electrical energy from a source, such as a wall outlet, into a form suitable for powering other electronic devices. This conversion typically involves changing the voltage and sometimes the current characteristics of the electricity.

Power supplies are essential components in almost all electronic systems, from personal computers and smartphones to industrial machinery and telecommunications equipment. They ensure that sensitive electronic components receive the correct, stable power they need to function properly and avoid damage. The specific design and capabilities of a teholähde vary greatly depending on its intended application. For example, a computer power supply needs to provide multiple different voltages and amperages to various internal components, while a simple phone charger provides a single, regulated output.

There are several types of power supplies, including linear power supplies and switching-mode power supplies (SMPS). SMPS are generally more efficient and smaller than linear power supplies, making them the dominant type in modern electronics. The output of a teholähde is often described by its voltage and maximum current rating, which indicate the electrical potential and the maximum amount of electrical charge it can deliver.