At present, the mainstream fast charge protocols on the market are mainly: QC, USB PD, FCP\/SCP, VOOC, etc.
Qualcomm QC fast charge
Qualcomm has long proposed fast Charge technology, and its fast charge protocol is called Quick Charge, which is a representative of high voltage fast charge.
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As early as 2013, Qualcomm was the first to release the QC1.0 fast charge, which increased the voltage and current to 5V2A, reached 10W charging power, and reduced the charging time by 40%. In the same year, Qualcomm put forward the concept of QC2.0 on the basis of QC1.0, further sublimating the \"high voltage and low current\" scheme, and directly raising the voltage to 9V\/12V\/20V, it can be said that QC2.0 is the leading standard in the history of fast charge popularity and influence.
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The QC 3.0 supports 3.6V-20V operating voltage dynamic regulation, the maximum current is also increased to 3A, and backward compatible with QC2.0.
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At present, Qualcomm's fast charge has developed to QC version 4.0, cancelled the 12V voltage file, and supports the USB PD protocol, the power can reach 100W, while also supporting notebook charging, the representative brands that currently support the protocol are Samsung, Nubia, Hammer and so on.
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Huawei FCP\/SCP
After saying the high-voltage scheme, we will take a look at Huawei's low-voltage and high-current counterattack. As a top technology company in China, Huawei has developed its own Fast Charge technology since Mate8, and currently has FCP (Fast Charge Protocol) and SCP (Super Charge Protocol).
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FCP supports 9V\/2A 18W fast charging technology, which is first applied to Mate 8 models; SCP fast charge technology is more advanced, currently can achieve 22.5W and 40W high-power charging, applied to Huawei Mate 20 Pro and subsequent Mate\/P series models, greatly improving the user's charging experience.
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Speaking of Huawei SCP, there are not many charging products equipped with this technology at present. The bidirectional fast charging bank recently launched by UGREEN Green has introduced this fast charging technology, which is compatible with FCP, QC3.0, PD3.0, Samsung AFC and other fast charging protocols, and the actual charging power can reach 22.5W, which can be full of more than 60% for Huawei P30 in 30 minutes, and 20000mAh can better meet the charging needs of a day. It is the preferred mobile charging solution for business people.
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OPPO VOOC flash charge
OPPO's VOOC flash charge is also a representative of the low-voltage and high-current fast charge solution, even more typical than Huawei.
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In the case of 5V charging voltage unchanged, OPPO transformed the battery into eight metal contacts, increased the charging current to 4A-5A, and transplanted the charging control circuit of the mobile phone into the charger to slow down the heat of the mobile phone. When the VOOC flash charge was released, the charging power was as high as 20W, the heat was lower, the speed was faster, and the shortcoming was that a special data cable was needed.
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At present, the VOOC flash charging protocol has been developed into Super VOOC super flash charging technology, which can support 65W charging. In addition, the basic idea of Dash and ViVo flash charge is similar to that of a large current.
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USB PD
It can be seen that at present, each protocol has its own standard, at this time, the USB-IF organization came out and developed a new fast charging standard - USB Power Delivery (USB PD).
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USB PD protocol has been developed to USB PD3.0 version, the output can be divided into 5V 2A, 12V 1.5A, 12V 3A, 12V5A, 20V 3A, 20V 5A and other different specifications, power up to 100W. The protocol needs to be implemented with Type-C interface, suitable for mobile phones, tablets, notebooks and other devices charging, support two-way power transmission, but also support positive and negative blind plug, very practical.
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Under the promotion of Google, the USB PD fast charge that supports the PPS protocol can be compatible with Qualcomm QC 3.0\/4.0, Huawei SCP \/FCP, MTK PE3.0\/2.0 and OPPO VOOC and other fast charge protocols, and has received the support of China's Ministry of Industry and Information Technology, which is expected to unify the fast charge market in the future.
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Many mobile phone models have joined the fast charge agreement, Apple since the iPhone8 series, began to support PD fast charge agreement. Relying on Apple's influence in the industry, PD fast charging has been rapidly popularized.
At present, there are many fast charge protocols on mobile phones, the mainstream is USB PD, QC, AFC, FCP, SCP, VOOC, SuperVOOC, PE, FlashCharge, etc. How do these protocols come from, how do they develop, and whether they are compatible with each other? Here is a detailed interpretation of the development history between the various fast charges of mobile phones.