Today to share the wireless charging how to receive the voltage is too high knowledge, which will also explain how to debug wireless charging, if you happen to solve the problem you are now facing, don't forget to pay attention to the site, now start!
< ul>After the box is opened, there are two things: a wireless charger and a wireless receiver.
How to use wireless charger Put the mobile phone with wireless charging function on the wireless charging board,The position should be placed, you can charge, note that some wireless charging panels support different mobile phone models, to choose wireless charging panels according to their mobile phone models.
Tap [Battery] in the phone Settings menu. Click the Charge Settings option. Open the switch on the right side of [wireless reverse charging], and put the phone back to back with the device that needs to be charged. Teach you to convert an ordinary mobile phone that can't be charged wirelessly into one that can be charged wirelessly.
It uses electromagnetic fields to transmit energy, converting electrical energy into radio waves, which are then transmitted to the device, which is then converted into electrical energyThe resonance principle is magnetic field resonance, which is transmitted only between coils resonating at the same frequency, and other devices cannot accept the band, in addition, the magnetic field used by wireless charging technology is itself harmless to the human body.
The principle is to use the magnetic field generated between the coils to generate a current for transmission.
Mobile phone wireless charging system mainly adopts the principle of electromagnetic induction, energy coupling through the coil to achieve energy transfer. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. Wireless charging technology is a special kind of power supplyIn this way, it does not need a power cord, relies on electromagnetic wave propagation, and then converts electromagnetic wave energy into electricity, and finally realizes wireless charging.
There will be attenuation of wireless charging voltage. This is because wireless charging is only a transitional technology, because the magnetic field decays quickly in the air, and the distance of wireless charging technology of current mobile phones is generally very small, and the effective charging distance is generally only 3-8 mm. The thickness of the mobile phone protective cover is counted, and the mobile phone charging is basically close to the charger in order to effectively carry out wireless chargingElectricity. This limitation doomed this wireless charging technology is only a transitional state.
Low efficiency: energy storage and transmission 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.
Battery problem It is well known that the attenuation of the mobile phone battery is gradually increased according to the number of charging cycles, research shows that the wireless charging battery cycleThe number of times is much greater than wired charging, about 5 times faster than wired charging, which will lead to wireless charging of mobile phone battery decay faster, shorter service life.
Reduce loss When using wireless charging, you only need to connect the wireless charging board to the power supply, and then place the device that supports wireless charging on the wireless charging board. Although wireless charging still needs to be connected to the power supply, it can reduce the use of data lines and avoid a large amount of loss and waste of data lines, which is relatively an environmentally friendly charging method.
The owner has abandoned the traditional data cable. Charging also makes the car appear tallerEnd. If there is no wireless charging on the car, but you want to use it, then you can install this function on the car, generally need to go to the 4S shop or regular auto repair shop for installation, the price is about 1000 to 2000, mainly according to the model to determine the price.
1, check whether the transmitter has been connected to the power supply, the power indicator is on; 2) BackWhether the jack is plugged in well with the mobile phone; 3) When charging, whether the center of the back is aligned with the center of the transmitter; Need to move repeatedly to try, because QI wireless charging products need accurate alignment; 4) When charging, there can be no barrier between the transmitter and the back sticker; Have been doing research on wireless charging technology, if you have questions, you can continue to ask.
2, Captain America ring wireless charger: wireless receiving stickers or how can not charge it? Expand me to answer share wechat scan Sina Weibo QQ space report Browse 26 times can select 1 or more of the following keyWord, search related information. You can also search the whole question directly by clicking "Search Data".
3, how to use Captain America wireless charger Expand me to answer share wechat scan the network busy please try again later Sina Weibo QQ space report browse 24 times can select 1 or more of the following keywords, search for relevant information. You can also search the whole question directly by clicking "Search Data".
4, if you need to identify whether the purchased mobile phone accessories are genuine, it is recommended that you log in to the product verification page of Samsung's official website, click on the mobile phone accessories, and verify according to the webpage certification steps.
1, you are normal no-load voltage and low load voltage. The no-load voltage is normal, indicating that your wireless charging transceiver circuit is normal, but the voltage is pulled down after the load, the most likely is that your coil matching is not good, resulting in insufficient power received by the output end, so the charging voltage will be pulled down.
2, wireless charger refers to the use of electromagnetic wave induction principle for charging equipment, the principle is similar to a transformer. There's one on the sending and one on the receiving endCoil, the sending end coil is connected to the wired power supply to generate electromagnetic signals, and the receiving end coil senses the electromagnetic signals of the sending end to generate current to charge the battery.
3, there seems to be a problem, that is, the filling problem. However, the output end of the wireless charging receiving module is generally through bridge rectification, and the reverse charge is not charged, but the working frequency of the wireless charging transmitting module is higher, and the received charging power signal will still be short-circuited by the high frequency of the charging head. The solution is to add a high-frequency diode to the output of the wireless charging receiving module for isolation.
4, the electromagnetic induction mode isThe most common working principle of wireless chargers. The transmitter generates a high frequency current through an AC power supply and an alternating magnetic field through an inductor. The inductor at the receiving end senses this magnetic field and converts it into electrical energy to charge the device. The advantage of this method is that the transmission efficiency is high and it is suitable for close charging. Electromagnetic radiation mode Electromagnetic radiation mode is a way of transmitting energy through electromagnetic waves.
In terms of increasing the output, you can select materials from the equipment and choose a good electromagnetic coil. Because of wirelessThe transmitter and receiver of the charge are covered with wireless charging coils, which will have losses when working, and the use of good materials can reduce the loss of the coil, which can greatly improve the efficiency of wireless charging. In terms of loss reduction, you can optimize the line and component selection to deal with. Streamline and optimize the line, and select good materials for components to reduce output losses.
The internal resistance of the components is small, and the conversion efficiency of the system is high. The selection of components such as triode with small internal resistance can greatly improve the efficiency of wireless charging. However, with low internal resistance, the cost will be relatively high. The transmitting end and the receiving end can not match in time, resulting in loss and affecting wireless chargingThe power output of the transmitting end will be flexibly adjusted according to the receiving end, and too much transmitting power will cause too much power loss when matching with the receiving end.
Connect the standard charger and data cable of the mobile phone to the wireless charger, and then put the mobile phone directly (vertically) or horizontally in the center position of the wireless charger base, you can realize wireless charging, the indicator light will have a breathing effect, 5 seconds later, plug and play, convenient and quick.
The latest patent for a wireless charging system developed by Huawei Technologies Co., Ltd. reveals an innovative approach that aims to break through traditional methods by improving charging efficiency and flexibilityLimitations of line charging.
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