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All colleagues unite and focus their efforts to write a new chapter of developmentWhat are the uses of switch-mode power adapters?
所属分类： Industry News
发布时间：2020-06-13
In everyday life, we often encounter various types of switching power adapters. However, many people lack a solid understanding of power adapters and related concepts, let alone their specific applications. In fact, it’s important to familiarize ourselves with these basic power‑supply facts—so let me walk you through them.
First, let me clarify.
Switching power adapter What is it for? Simply put, it’s a “voltage converter” that transforms the mains AC voltage of 220V into the several volts of DC your laptop needs. If your computer automatically powers on as soon as you plug in the power strip, that’s not normal! The power adapter may be receiving power, but the computer shouldn’t start up on its own—it should only turn on when you press the power button. That’s the proper behavior. The output voltage must match exactly what the device requires; it can’t be higher or lower. That’s why the wires coming out of a switching power supply come in different colors—to distinguish between various voltages and currents.
To determine whether a switching‑mode power adapter is compatible, the key factor is whether its connector matches the motherboard’s power‑input interface—this is referred to as the “form factor.” Different motherboard form factors have different power‑connection requirements, and you must also take power rating into account.
What kinds of appliances are typically equipped with power adapters? A power adapter is a device that converts the voltage of one power source into the voltage and current level you need. Some adapters also feature protective functions, such as current and voltage limiting, to safeguard connected devices. Power adapters are generally used in applications with stringent power‑supply requirements and are now widely employed in most mobile phones.