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<p>Power adapter is also called external power supply (switching <a href="https://www.fuyuanpower.com/power-adapter" rel="noopener noreferrer" target="_blank"><a href="https://www.fuyuanpower.com/power-adapter" target="_blank">power adapter</a></a>), it is a kind of small portable electronic equipment and power supply voltage conversion equipment for electronic appliances.</p><p><br></p><p><br></p><p><strong>Application of power adapter</strong></p><p><br></p><p>The <a href="https://www.fuyuanpower.com/power-adapter" rel="noopener noreferrer" target="_blank">power adapter </a>is widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, electrical equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED lamps , Communication equipment, audio-visual products, security, computer cases, digital products and instruments, etc., and have a role that cannot be ignored in these fields. So what are the functions of the power adapter?</p><p><br></p><p><strong>The role of the power adapter</strong></p><p><br></p><p>Generally speaking, the role of power adapter is transformer and rectifier. The household AC power is 220v, and our computer uses DC 12v (as if it is), so we can be sure that the <a href="https://www.fuyuanpower.com/power-adapter" rel="noopener noreferrer" target="_blank">power adapter</a> is a transformer and rectifier. The adapter is a transformer, so we should all know that AC 220v is transformed by a transformer and DC by a rectifier. There is consumption here, and these consumption will be converted into heat, so it is normal for the power adapter to generate heat. The transformer is made of silicon steel sheet. After the transformer is energized, magnetic flux is generated. The magnetic flux will cause a forceful effect between the silicon steel sheets, which generates a humming sound. This is normal. But the sound of overheating ground is abnormal, for many reasons: the AC voltage is unstable; the chip is damaged; the short circuit between the turns; the component is damaged and so on. By the way, the role of the adapter is to convert AC to DC electronic products.</p>
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