Charging IC out of stock, Huawei's flagship models no longer deliver chargers
Recently, the charging head network found from the official website of 3C quality certification center of the Ministry of industry and information technology that Huawei has adjusted the distribution policy of some of its chargers and re certified them. From the device model, we can see that it includes oce-an50, brq-an00, noh-an00, oce-an10, oce-an00, etc., and mobile phones involve mate40 series, nove8 series, etc.
Not long ago, the charging head network reported the chip shortage event 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 orders of upstream wafer manufacturers have increased sharply. Coupled with the impact of the global epidemic, the production capacity is insufficient, and the supply of fast charging chips is in short supply.
The corresponding model of brq-an00 of MIIT is Huawei Nova 8 pro, with the maximum charging power of 66W. The corresponding charger models are hw-110600c00 and hw-110600c02, which support three levels of voltage 5v2a / 10v4a / 11v6a. The charger in the mobile phone packaging box is changed to optional.
The corresponding model of oci-an50 is Huawei mate40e with maximum charging power of 40W. The corresponding charger models are: hw-100400c01, hw-100400c00, hw-100400c02, hw-100400c03. It supports three levels of voltage of 5v2a / 9v2a / 10v4a. The charger in the mobile phone packaging box is changed to optional.
The corresponding model of oci-an10 of MIIT is Huawei mate40, with the maximum charging power of 40W. The corresponding charger models are hw-100400c00, hw-100400c01, hw-100400c02 and hw-100400c03, which support three levels of voltage 5v2a / 9v2a / 10v4a.
The charger in the packaging box of mate40 mobile phone with bright black, glaze white and secret silver back cover is changed to optional; Summer Populus euphratica and autumn Populus euphratica are sold with mate40 charger.
The corresponding model of noh-an00 of MIIT is Huawei mate40 pro, the maximum charging power is 66W, and the corresponding charger models are hw-110600c00 and hw-110600c02, which support three levels of voltage 5v2a / 10v4a / 11v6a.
The chargers in the packaging box of mate40 Pro mobile phone with bright black, glaze white and secret silver back cover are changed to optional; Summer Populus euphratica and autumn Populus euphratica are standard parts of mate40 Pro charger.
Huawei fast charging family
Huawei, as one of the first mobile phone brands to promote fast charging, has steadily upgraded its power and fast charging technology from 22.5w SCP low-voltage direct charging scheme to 40W super fast charging on mate20 pro and 66W super fast charging on mate40 pro.
The 40W super fast charger was first installed on mate20 pro. The charger is designed with non foldable pins. The model hw-100400c01 supports 100-240V 50 / 60Hz 1.2A global power grid and has three voltage output files 5v2a / 9v2a / 10v4a. According to the actual measurement of charging head network, mate20 pro with 40W charger, the power is 9.58v, 3.86a, 37.06w.
The 66W super fast charger starts to carry on the mate40 pro, the charger pin is non foldable design, the charger model is hw-110600c00, supports 100 ~ 240V 50 / 60Hz 1.8A input, supports 5v2a, 10v4a and 11v6a three fixed voltage gears. The measured original 66W charger with original data cable charges Huawei mate40 pro with a power of 9.99v, 6.00a and 60.00w.
Disassembly of Huawei charger
Through dismantling Huawei 66W charger, we learned that the internal design of charging head network is full of Huawei style. The primary controller and secondary chip are all from Lixi technology, a large manufacturer of Taiwan. The secondary chip integrates synchronous rectifier controller and protocol identification function, which is highly integrated; The high and low voltage MOS for AC-DC switching power supply conversion are all provided by St STMicroelectronics; The filter capacitor is supplied by Fengbin and emerald respectively, and the output is pure.
Huawei 66W charger adopts the latest planar transformer technology, which is conducive to saving space. Under the premise of 66W power improvement, the PCB size of planar transformer still maintains the size of 40W super fast charging, 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.
Impact of subtraction on Huawei
Huawei's adjustment of charger distribution policy has affected most of the mainstream hot models, covering the two core fast charging technologies of 40W and 66W. The charging head network has tested the charging speed of Huawei mate40 Pro which supports 66W fast charging, and compared the charging speed of PD standard charger, Huawei 66W charger, Huawei 40W charger and Huawei 22.5w SCP charger.
Huawei 66W charger takes 52 minutes to charge in 15 minutes, 78% in half an hour, and 52 minutes to fully charge; Huawei 40W charger charges 40% in 15 minutes, 76% in half an hour and 57 minutes for full charge; Huawei 22.5w charger charges 25% in 15 minutes, 52% in half an hour, and takes about 1 hour and 21 minutes to fully charge. On the other hand, the general standard PD charger charges 14% in 15 minutes, 30% in half an hour and takes about 1 hour and 51 minutes to fully charge.
It can be seen from the test that the speed of Huawei flagship model matching with Huawei's own fast charging is the fastest. Although Huawei mobile phone also supports the 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, this reduction of charger will greatly affect the user's experience in fast charging, It is hoped that Huawei can resume the distribution of original chargers after going through the shortage period in the later period, so that every user can enjoy the best fast charging experience when they get it.