QFWB-10-5-USUB

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AC-DC desktop, wall adapters are electrical adapters or power supplies that convert alternating current (AC) line voltage input into direct current (DC) voltage output. These adapters are designed for use with a variety of electronic devices, including laptops, computers, LED lighting systems, cell phones, infrared and remote-control devices, modems, and digital video equipment. QFWB-10-5-USUB is a popular AC-DC wall adapter, whose application field and working principle are exposed in this article.

Application field

QFWB-10-5-USUB is a type of popular AC-DC adapter with universal use. It consists of three parts: the power adapter, the wall adapter, and the plug tip. The wall adapter features a US standard plug, which makes it perfect to use with almost all kinds of electronic appliances in United States such as cell phones, cameras, computers, audio-visual equipments, etc. This product also could be used in many countries in Europe, Latin America, Asia, etc.

Working principle

QFWB-10-5-USUB features a wide input voltage range, from 90V–264V AC 50/60 Hz. The power adapter functions as the power source, providing constant current and voltage output to the wall adapter. The wall adapter can convert AC power from the power adapter to low-voltage DC output. The plug tip is the last link that can be inserted into the electrical outlet and receiver the AC power from the wall outlet. All the part work together to transform the AC power from the wall outlet into DC power for electronic equipment.

Safety features

Safety plays an important role in the design of QFWB-10-5-USUB wall adapter. The product was designed with complete protection, including Over-voltage, Over-current, and Short-circuit protections. It also has a low standby-power leakage current, and a built-in input fuse to prevent any unexpected fire or hazardous accidents. To ensure safe usage, it has been UL certified and meets the international safety standards.

Conclusion

As one of the most popular AC-DC adapter, QFWB-10-5-USUB is suitable for applications in many different countries. It is designed for users’ safety due to its complete protection functions. The universal plug with US standard makes it an ideal choice for different devices in different countries. For more detailed information of its features, you can directly consult its datasheet.

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