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Charging Panacea: Why is the USB PD Charger So Magical?

Apr 08-2022

Among various charging protocols, USB PD can be regarded as a "panacea". Many smartphones, tablets and laptops use it as a compatible charging standard, which truly realizes the experience of using one countermeasure for countless products. Therefore, when you want to add another charger to your mobile phone or notebook, the PD charger may bring you more surprises in the future.

1. Standard of USB PD charger

Since it covers both high-voltage and low-current modes and low-voltage and high-current modes, Google has also included the USB-PD protocol into the mandatory support standard from Android P, and with Apple's strong support, electronic devices with a power of less than 100W in the future will be supported by USB -PD "rule".

In the field of mobile phones, high-end phones, including Apple, Huawei, Xiaomi, Samsung, Meizu, Nokia, Hammer, 360 and other brands, are compatible with 18W USB PD fast charging at the same time no matter which fast charging technology is used. In the field of thin and light, all products that use USB Type-C as the charging interface are almost all subjects under the rule of USB PD. Therefore, a USB PD charger can take into account mobile phones, tablets and notebooks when going out, which greatly saves space in luggage or pockets.

2. Why do I need to buy a new USB PD charger?

Some friends may ask, don't newly bought smartphones and laptops come with a charger as standard? The answer is very simple. The chargers that come with mobile phones generally only support QC (Qualcomm), FCP (Huawei), and PE (MediaTek) fast charging protocols. Even if USB PD is supported, it will be limited to the output power within 24W, which cannot be used for accompanying mobile phones. Notebook charging; although the standard power adapter of many notebooks adopts the USB PD standard, its style is still the form of the last century. The huge body and the split-type thick power cord are very inconvenient to carry out.

On the other hand, most of the USB PD chargers have a very "sexy" figure, and their body size is only one circle larger than the charger dedicated to mobile phones. Therefore, if you often carry a mobile phone and a notebook out at the same time, a USB PD charging that is compatible with two devices at the same time can be used for charging. It is undoubtedly the best way to reduce the burden.

3. What should I pay attention to when buying a USB PD charger?

From the design point of view, the cables of USB PD chargers are conjoined and detachable (mostly), the latter is more convenient, because the cable can be unplugged to connect to mobile phones and notebooks and can also transmit data; USB PD The plug of the charger is either fixed or foldable for recycling. The latter saves space when storing, and there is no need to worry about the plug being entangled in the cable.

In addition, you need to pay more attention to the output parameters of the USB PD charger. Some USB PD chargers do not support 12V, and some do not support 15V, which means that the charger cannot achieve the best charging efficiency when charging some devices. . There are also some USB PD chargers that provide multiple USB output interfaces, such as 1 to 3 USB-A and 1 USB Type-C. The former can charge digital products such as mobile phones and tablets, while the latter is suitable for notebooks and laptops. Mobile phones that support the USBPD protocol.

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