Wireless charging base to increase the coil, or do not modify it, you increase the coil not only did not play a good effect but affect the speed of chargingDegree, the increase of the coil is equal to increase the resistance, it will make the current slow, the coil is proportional to the winding, too much too little can not, the coil is less, there will be damage to the parts, resulting in parts burned spark, because do not be free to modify the wireless charging base.
Wireless charging will not accelerate battery aging, will not have radiation to the body. The principle of wireless charging is electromagnetic induction. The charging dock is like an iron core with some primary coils wrapped around it. Cell phones have secondary coils built into them. The primary coil is energized to generate electromagnetic induction, so that the secondary coil generates induction voltage, and generates induction current to the mobile phone after loadingLine charging. So don't worry.
Can not, too much increase the voltage or increase the number of turns will burn the battery, because the more you turn the higher the voltage, I do not know whether your self-made charger is Qi program, if it is Qi, it is not possible, this must be close contact, you have to change to radio wave type, within five meters.
Mobile phone space charging technology is to install the transmitter coil on the wireless charging base, and install the receiver coil on the back of the mobile phone. When the mobile phone is charged near the charging base, the transmitter coil will generate alternating magnetic field due to the access of alternating current. A change in the magnetic field will get the receiver inside the coilAn induced current is generated, which transfers energy from the transmitting end to the receiving end, and finally completes the charging process.
1, all coil winding is enamelled wire. If it's not enamelled, it shorts out. Enamelled wire generally selects the diameter of the line, which is the thickness.
2, Question four: How to make mobile phone wirelessAll coils of the charger are enamelled. If it's not enamelled, it shorts out. Enamelled wire generally selects the diameter of the line, which is the thickness.
3, enamelled wire is good. Due to the skin effect of the high-frequency signal in the wire, which means that the high-frequency current in the wire will converge to the surface of the wire, the wireless charging coil generally uses a multi-strand enamelled wire to reduce the impedance.
4, the working principle of the wireless charger is that a power supply passes through a high-frequency oscillator, a high-frequency power amplifier, transmits an electromagnetic signal through a coil, the other side of the induction coil receives the electromagnetic signal, and the output is high enough after rectificationng>, according to the mobile phone manual Tianhe wireless charging coil manufacturer , the wireless charging coil is in the upper right corner of the mobile phone.
Wireless charging usage: Connect the phone's standard charger and data cable to the wireless charger, and then put the phone in the center position of the wireless charger base, you can realize wireless charging, the indicator light will have a breathing effect, 5 seconds after the extinguish, plug and play, convenient and quick.
ZTE Axon Tianji 7 top version does not support wireless charging technology, in smart phones, currently equipped with wireless charging function English nameQi technology, the world's first standardization organization to promote wireless charging technology - Wireless charging Alliance (WirelessPowerConsortium, referred to as WPC) launched the "wireless charging" standard, with convenience and versatility of two major characteristics.
1, the wireless charging coil of the millet 9 mobile phone is damaged, and the maintenance cost is usually about 300 yuan. SuggestionYou go to a regular repair shop for repair to ensure the quality of the repair and the compatibility of the phone.
2, Mi 9 charging money circle is broken, about 300 yuan. But we have to go to a regular shop.
3, if the phone is still within the warranty period, its Mi 9 inner screen is broken can be guaranteed, and vice versa is not guaranteed. Directly contact Xiaomi after-sales service can be repaired. Mi 9, is a mobile phone owned by Xiaomi, the internal code name is Battle Angel, using 39-inch Samsung AMOLED water drop screen, equipped with Qualcomm Snapdragon 855 flagship platform, up to 12GB memory 256GB storage.
4, if you buy the official 20W wireless charger, the price is 99 yuan, model MDY-10-EP. If you buy other brands of wireless chargers, there are many prices. The Mi 9 supports wireless charging, but not necessarily with an official wireless charger. You can use other brands on the Mi 9.