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Daily Tech Update > Blog > Featured > Fast Charging Solutions And Protocols: Everything You Should Know
Featured

Fast Charging Solutions And Protocols: Everything You Should Know

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Last updated: 2022/02/08 at 9:03 PM
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If your smartphone supports fast charging, then you have to use the charging head of the same brand. Once replaced with a charging adapter of another brand, it won’t support fast charging anymore. We’ll try to explain why.

Contents
PD protocolQC protocolPE protocolVOOC Flash ChargeSCP/FCP Flash ChargeFlashChargeMI ChargeTurboWrap Up

At present, the fast charging solutions in the field of mobile phones are roughly divided into three types: low voltage and high current, high voltage and low current, and dynamic adjustment. The fast charging solutions of major manufacturers are different. In its turn, it leads to the inability of chargers to be mixed. That’s why there are myriads of fast charging protocols.

PD protocol

The PD protocol refers to the USB-PD protocol. The latter is a fast charging protocol proposed by the USB-IF organization. The full name is USB Power Delivery, which can theoretically reach 100W.

In addition to mobile phones, many laptops and other devices also use this protocol. Everyone should be familiar with the USB interface. Almost all charging cables have a USB interface at one end. So they have to follow the standards. Therefore, the fast charging protocol must follow the PD protocol.

QC protocol

The Qualcomm QC fast charging protocol is a fast charging technology developed by the well-known chip company Qualcomm for the Snapdragon processor. The full name is Quick Charge. Because it is the leader of mobile phone chips, Qualcomm has integrated the fast charging protocol in its own chip very early. However, many mobile phones with non-Qualcomm processors can also support the QC fast charging protocol, because the PD fast charging protocol is compatible with the QC protocol.

fast charging

PE protocol

The PE protocol was launched by MediaTek, and its full name is Pump Express, which is characterized by allowing the charger to determine the initial voltage required for charging according to the current. However, there are only a few smartphone vendors using this protocol.

VOOC Flash Charge

The VOOC flash charging technology is developed by OPPO. It is the world’s first mass-produced and commercial fast charging solution. It adopts a low-voltage and high-current solution. Compared with other solutions, the charging power is higher, and the power conversion rate reaches 95%. VOOC flash charging requires customized adapters and batteries.

VOOC flash charging was first used on the OPPO Find 7. Due to it, the phone’s 3000mAh battery could be directly charged to 75% in 30 minutes.

Generally speaking, OPPO’s VOOC flash charge is compatible with OnePlus’ WARP flash charge, Realme’s DART flash charge, and the chargers between them can also be used in common. After all, they are all “family”.

SCP/FCP Flash Charge

The full name of SCP is SuperCharge Protocol, and the full name of FCP is Fast Charger Protocol. Both are Huawei’s own proprietary protocols. SCP is also the fast charging protocol currently being used by Honor.

The FCP protocol was initially using a high-voltage and low-current solution. After 2016, Huawei launched a new SCP protocol, which adopted a low-voltage and high-current solution similar to OPPO. Its advantage is to increase power while reducing heat generation. Later, on the basis of this agreement, Huawei added charge pump technology to reduce the charging voltage to about 5V, while increasing the current from 4A to 8A, which also achieved 40W super-fast charging.

In addition, 65W super-fast charging has also appeared on Huawei Mate X. In fact, it is the same as OPPO’s idea of ​​dual battery charging. But the difference is that each battery is electromagnetically isolated to achieve the actual 60W charging speed.

FlashCharge

FlashCharge refers to the fast charging technology adopted by vivo, which is currently mainly used in iQOO mobile phones and vivo mobile phones. This is a high-power fast charging technology adopted by vivo brand mobile phones. Like other fast charging technologies, it can achieve a shorter charging time through higher charging power. Due to the exclusive protocol used on the chip side, it cannot be used in other charging heads and mobile phones that do not support this fast charging technology.

The iQOO7, iQOO8 series, and iQOO9 series already support a 120W FlashCharge, which is also one of the fastest charging technologies in the smartphone field.

MI ChargeTurbo

MI ChargeTurbo flash charging technology is launched by Xiaomi for Mi series mobile phones and is suitable for Xiaomi and Redmi mobile phones. You have to use the original charger and data cable to achieve the best fast charging effect. It is worth noting that because Xiaomi’s fast charging data cable adopts a magic modification scheme, only the original Xiaomi data cable can be used. It supports Xiaomi’s high-power fast charging, such as the 120W ultra-fast flash charging currently used by Xiaomi MIX4 and Xiaomi 12 Pro.

However, Xiaomi’s models using Qualcomm Snapdragon processors all have good support for the Qualcomm QC fast charging protocol.

Wrap Up

Shortly, if you buy a smartphone, the box of which doesn’t include a charger, you have to buy a separate set but from the same brand.

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