Wireless charging coil test good or bad method is as follows: test the resistance value of the coil, resistance value within a certain range is a good product. Test the Q value of the coil, the higher the Q value, the better the performance. Test the coil temperature rise, the lower the temperature rise, the better the performance. Test the efficiency of the coil, the higher the efficiency, the better the performance.
Wide impedance range, ADAPTS to a variety of requirements wireless charging coil inductance usuallyAt the micro Heng level, the test frequency is in the kHz range, which requires a wide and accurate measurement range. The E4980A/AL has a wide impedance range from 4 milliohm to 100 milliohm, and can cover this band with 10% accuracy, making it particularly suitable for the precise evaluation of wireless charging coils.
The secondary winding is broken, the wireless charging coil has two windings, one is the main winding, one is the secondary winding, after the secondary winding is damaged, it will cause the main winding to heat, and the output has no voltage.
Wireless charging coil tests the capacitance of the coil to the ground because the capacitance is the conversion of electric field energy and magnetic field energyIn the process of wireless charging, electric field energy and magnetic field energy need to be converted. The process of wireless charging is the transmission of electric energy from the charging device to the receiving device.
Indicator. A chip location is reserved. The wireless charging coil has a thermistor on it to detect the temperature during charging. Type-C seat with steel plate inside, durable. Disassemble the family photo. Zte wireless charger products work neatly and look very comfortable. The input has electrostatic protection to avoid damage and reasonable design. The use of well-known manufacturers in the industry components, IDT solution with diodes moS-tube, material is mainstream standard.
Yes. The material of mobile phone wireless charging coil is ordinary, and it needs long-term operation, which is easy to burn and emit the phenomenon of combustion gas expansion, and once this situation occurs, it can not be repaired directly.
The secondary winding is broken, the wireless charging coil has two windings, one is the main winding, one is the secondary winding, after the secondary winding is damaged, it will cause the main winding to heat, and the output has no voltage.
NoneWire 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 charging, increase the coil is equal to increase the resistance, it will make the current slow, the coil is proportionally wound, too much or too little can not, coil wound less, there will be damage to the machine, resulting in parts burned spark, For some do not arbitrarily modify the wireless charging base.
According to the principles of physics, the stronger the electromagnetic coil will emit the stronger the magnetic field, and then the reception of the mobile phone is also related, the stronger the magnetic field, then the ability to charge will be stronger.
2, Zikko Apple wireless charger compared with the common wireless charger on the market, it has a high 10W fast charging, multi-coil without alignment solidFixed position, all-round charging and other advantages. Equipped with high 10W dual coil wireless transmission power, compared to the common single coil, it does not need to be aligned to a fixed position when charging. It has three modes of horizontal and vertical placement, no matter it is horizontal, horizontal and vertical placement, it can truly achieve all-round charging.
3, so wireless charger antenna you can find any coil factory to do! As long as it is a fixed inductance. Let me show you the circuit diagram of the 408 scheme of the Chiptech. Inside the 30uH coil you can change the shape of the wire diameter, size level.
4, Chiptech wireless charging productionThe goods are very good. Module finished IC can be bought. And they currently have a wireless charging solution that can charge the battery, which can be implanted into the phone's battery. Completely resistant to metal, efficiency can also reach 80%.
5, Belkin wireless charger easy to use around the charging coil, Belkin designed a ring of non-slip glue, not like other round wireless chargers so easy to slip. Do a little test, even if it is tilted like this, it will not slide; And the purple rice bought has happened N times a night without charging the embarrassing situation. Use the same backThe silicone pad prevents sliding on the desktop.
1, 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.
2, electric field coupling wireless charging, does not use the coil for electromagnetic induction, but directly through the charging base and the electrical device to be charged between the capacitor in the high-frequency electric field, that is, by coupling the two groups along the vertical directionAsymmetric dipole generated by the induction field to transmit power, this charging method has the advantages of low cost, low alignment requirements. But there are not many actual products.
3, in theory, the circular coil is the most economical wire, or the same amount of wire, it gets the largest coupling area, so the best effect. However, the shape design of the wireless charger often makes it impossible to make the coil into a circular circle, at which time the coil must first be considered to adapt to the shape of the housing.
The resistance value of the inductor under test is zero, and there is a short-circuit fault in it. The size of the DC resistance value of the inductor under test is directly related to the enamelled wire diameter and the number of coils wound. As long as the resistance value can be measured, it can be considered that the inductor under test is normal. Note: If requiredTo determine the accurate inductance and resistance values, please use special inductance testing instruments such as: impedance tester, LCR tester, digital bridge, etc.