Not long ago, the charging head network reported the chip shortage in the field of fast charging. The shortage of fast-charging chips is closely related to the rapid growth of USB PD fast-charging market driven by the listing of iPhone 12, the surge of orders from upstream wafer manufacturers, the shortage of production capacity caused by global epidemic and the shortage of fast-charging chips.
Affected model
The model BRQ-AN00 of the Ministry of Industry and Information Technology is Huawei nova 8 Pro with the maximum charging power of 66W, and the corresponding charger models are: HW-10600C00, HW- 1 10600C02, which supports 5V2A/1.
The model OCE-AN50 of the Ministry of industry and information technology corresponds to Huawei Mate40E, with a maximum charging power of 40W, and the corresponding charger models are: HW- 100400C0 1, HW- 100400C00, and HW- 100400 c 00.
The model OCE-AN 10 of the Ministry of industry and information technology corresponds to Huawei Mate40 with a maximum charging power of 40W, and the corresponding charger models are: HW- 100400C00, HW- 100400C0 1, HW-10000.
Among them, the charger in the Mate40 mobile phone packaging box with bright black, glazed white and secret silver is changed to optional; Mate40, Populus euphratica in summer and Populus euphratica in autumn, sold with charger.
The corresponding model of NOH-AN00 in the Ministry of Industry and Information Technology is Huawei Mate40 Pro, with a maximum charging power of 66W, and the corresponding charger model is HW-10600C00, HW- 1 10600C02, which supports 5V2A//kloc-0.
Among them, the charger in the Mate40 Pro mobile phone box with bright black, glazed white and secret silver back cover is changed to optional; Mate40 Pro chargers for Populus euphratica and Populus euphratica are standard.
Huawei fast charging series
As one of the earliest mobile phone brands to promote fast charging, Huawei has steadily upgraded fast charging technology from 22.5W SCP low-voltage direct charging scheme to 40W super fast charging Mate20 Pro and then to 66W super fast charging Mate40 Pro.
40W super fast charging is installed on Mate20 Pro for the first time. The charger adopts non-foldable pin design, model HW- 100400C0 1, and supports100-240V50/60Hz1.2A global power grid. According to the actual measurement of the charging head network, mate20 Pro matches the 40W charger, and the power is 9.58V 3.86A and 37.06W.
A 66W ultra-fast charger has been installed on Mate40 Pro, and the charger pin cannot be folded. The charger model is HW- 1 10600C00, which supports100 ~ 240v50/60hz1.8a input, and supports 5V2A, 10V4A and 6550. Huawei Mate40 Pro was charged with original 66W charger and original data cable, and the power was 9.99V6.00A60.00W. ..
Huawei charger disassembly
By disassembling Huawei 66W charger, the charging headnet found that the internal design was also full of Huawei style. Both the primary controller and the secondary chip are from Taiwan Province Jing Daole technology, and the secondary chip integrates the synchronous rectifier controller and the protocol identification function, with high integration. High and low voltage MOS for AC -DC switching power supply conversion is provided by ST stmicroelectronics. Filter capacitors are provided by Fengbin and Jade respectively, and the output is pure.
Huawei 66W charger adopts the latest planar transformer technology, which helps to save space. On the premise of increasing the power of planar transformer by 66W, the PCB size still keeps the ultra-fast charging size of 40W, which is full of black technology. At the same time, it also makes it possible to achieve higher power density, helping products to achieve miniaturization and portability.
Influence of reduction on Huawei
This time, Huawei adjusted the charger distribution policy, which affected most mainstream hot-selling models, covering Huawei's two core fast charging technologies, 40W and 66W. The charging speed of Huawei Mate40 Pro, which supports 66W fast charging, is tested by the charging headnet, and four fast charging speeds, namely PD standard charger, Huawei 66W charger, Huawei 40W charger and Huawei 22.5W SCP charger, are compared.
Huawei 66W charger 15 minutes to charge 52%, half an hour to charge 78%, and it takes 52 minutes to fully charge; Huawei 40W charger 15 charges 40% in half an hour, 76% in half an hour, and it takes 57 minutes to fully charge; Huawei's 22.5W charger 15 minutes charges 25% and half an hour charges 52%. It takes about 1 2h21minute to fully charge. Generally speaking, the standard PD charger charges 15 minutes 14% and charges 30% in half an hour. It takes about 1 hour 5 1 minute to fully charge.
It can be seen from the test that Huawei's own flagship model of fast charging is the fastest. Although Huawei's mobile phone also supports USB PD fast charging standard, Huawei's power setting for PD fast charging is relatively mild, and the general power can only reach about 10 watts. Therefore, the reduction of chargers will greatly affect the user's fast charging experience. I hope that Huawei can resume the distribution of original chargers after the out-of-stock period, so that every user can enjoy the best fast charging experience.