2, does the subject want to ask "top271eg chip charger traffic light flashing reason"? The charger internal burned short circuit. According to the query of relevant information, this situation can try to replace the solution, replace a charging equipment, convenient and quick.
3, MCU chip. Red and green light are usually obtained by red leds and green leds, while yellow light is obtained by red plus green.
4, direction Dir (1: east-west, 0: north-south), east-west light color LightcolorEW, north-south light color LightcolorNS. At the moment, east-westIf the light is red, Dir=1, LightcolorEW=red, LightcolorNS=green. Assign a value to the corresponding end. You just have to go in the opposite direction from east to west. If there is a yellow light, set the red light for 30 seconds, the green light for 25 seconds, and the yellow light for 5 seconds.
5, if your charger has been used for a long time, it is generally the output line of the charger that has a virtual connection or broken line phenomenon, buy a replacement. When changing the electric iron, pay attention to the positive and negative terminals do not connect wrong.
6, in the circuit, there is a resistor called the sampling resistor at the output end, which feedbacks the sampling current to the ratioThe a8 doesn't have this chip. In addition, wireless charging is not as efficient and fast as wired charging, so it may not be necessary for all users. The nova8 does not currently support wireless charging, but it does support 40W wired fast charging, which can be quickly charged in a short time. If you need wireless charging, you can choose other mobile phones that support wireless charging.
The Apple 12 supports wireless charging. The iPhone 12 was released by Apple in the United States at 10 am Western time on October 13, 2020 (1 am Beijing time on October 14, 2020)The phone was unveiled at Apple Park headquarters. The iPhone 12 has a face-facing bezel design, which comes in six colors: black, white, red, green, blue and purple. The iPhone 12 has 5G support, an A14 Bionic chip, and a dual-lens rear camera system.
However, the use of NFC for wireless charging, the power and today's maximum 40W or even higher technology is not comparable. As explained by the NFC Forum, WLC (wireless charging via an NFC solution) can be used in an NFC-enabled deviceThe antenna manages the communication and charging, so currently only 1W charging speed can be achieved with this solution.
The iphone8plus can charge wirelessly. However, you will need to purchase an additional wireless charger. The iphone 8plus supports wireless charging and is compatible with Qi chargers. The iPhone, AppleWatch and AirPods can all be charged simultaneously on a single wireless charger, officially called AirPower. The three phones released by Apple this time, iPhone8Plus and iPhoneX, all support wireless charging, whichThis is the first time Apple has offered this feature on an iPhone.
1, wireless charger charging speed is slow, there are the following possibilities: 1, wireless charger wireless charging power itself is not large. 2, the wireless charging receiver of the mobile phone, the charging current supported is not large. It is recommended to change a high-power wireless charging board, such as a certain meter, which has more than ten coils, although it is not opened at the same time, the effect will be good.
2, low efficiency: energySave and send efficiency is not as good as real contact. Slow charging speed: Due to low efficiency, the charging speed is slow at the same input power. Although wireless charging can be unplugged, the distance between the phone and the charger is very small. However, the electromagnetic energy loss is still not small, and the power received by the general mobile phone is about 75% of the power sent by the charger.
3, power plug power, wireless charger power, mobile phone wireless charging receiving power power plug power/wireless charger power/mobile phone wireless charging receiving power, these three key points are mutually reinforcing and mutually restrictive relationship, the final actual power is thisThe lowest power of the three items is the actual charging power.
4, slow charging speed: due to the low efficiency of wireless charging, the charging speed is relatively slow. This causes users to have to wait longer to complete the charge. High cost: Wireless charging technology is relatively new compared to wired charging technology, so its cost is higher. This also means that wireless chargers may cost more than wired chargers.