Why do GaN charger like to use usb-c interface instead of the USB-A interface?

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    Report suggests Apple to release GaN USB-C fast charger this year. Why do GaN charger like to use usb-c interface instead of the USB-A interface?

    Why are GaN chargers so popular?

    GaN is mainly used as a frequency booster. In a transformer, the higher the frequency, the more energy can be converted through the electromagnetic effect. Therefore, the switching circuit made of gallium nitride can greatly increase the frequency of the AC circuit of the transformer. In this way, it has slowly switched from silicon MOSFET to gallium nitride.

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    Gallium nitride is a new type of semiconductor material with the characteristics of large band gap, high thermal conductivity, high temperature resistance, radiation resistance, acid and alkali resistance, high strength and high hardness. It was widely used in new energy vehicles and rail transit in the early days, smart grid, semiconductor lighting, new generation of mobile communications, known as the third generation of semiconductor materials. As the cost of technological breakthroughs is controlled, gallium nitride is currently widely used in consumer electronics and other fields, and chargers are one of them. Simply put, gallium nitride has a wider band gap, and the wide band gap also means that gallium nitride can withstand higher voltages than silicon and has better conductivity. Under the same volume, charging using gallium nitride technology The output efficiency of the charger is higher than that of ordinary chargers. For example, a charging head made of gallium nitride material can achieve more output power when the volume is similar to that of an Apple 5W charger.

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    The gallium nitride multi-port charger is somewhat similar to the difference between wired and wireless earphones to ordinary chargers. When you pull out a mess of wired headphones from your bag, your colleague has gracefully donned wireless headphones. Similarly, when traveling for business, your computer, mobile phone headset charger tangled in one piece and stuffed into the bag, which is big and heavy and troublesome. And as long as you have a mini gallium nitride charger, you only need to bring a small cuboid, and the charging problem of all devices will be solved.

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    Why do GaN charger like to use usb-c interface instead of the USB-A interface?

    1. The Type-C interface is the mainstream interface for devices such as mobile phones/tablets/laptops.
    2. Type-C interface charging protocol has the widest compatible interface, such as PD3.0/2.0, QC4.0/3.0/2.0, PPS specification SCP10V2A, FCP, Apple5V2.4A, BC1.2 and other fast charging protocols
    3. Gallium nitride is a material with high withstand voltage and high frequency. It can make the same power smaller and lighter, mainly used for chargers with higher power. The Type-C port supports high power output and is the current mainstream interface, so Type-C has become the first choice for GaN chargers.
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    The gallium nitride charger is faster, has lower heat generation, is small in size, has multiple ports and multiple protocols, and has high compatibility. No matter in terms of charging speed or portability, it is a lot higher than ordinary chargers, so it is also popular with more people and will become a new trend in the future.

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