White line: negative voltage Data line (marked with: Data- or USB Port -) Green line: positive voltage data line (marked with: Data or USB Port) Black line: ground (marked with: GND). The general arrangement order is VCC, D-, D, GND, the arrangement is fixed, but there are two directions, the wrong connection of the data line can not identify the usb device at most, the power line must not be connected wrong, it is recommended that you read the motherboard manual or use a multimeter test.
Mobile phoneMotherboard signal pin welding is a very important step in mobile phone repair. First, the function and position of each pin must be understood to ensure proper connection. Secondly, before welding, make sure that the pin and welding pad have enough spacing to avoid short circuit. Finally, it is necessary to weld at the appropriate temperature and time to ensure the quality of welding. Only by correctly welding the signal pin, the mobile phone motherboard can work normally.
The four wires inside the mobile phone charging cable are: Red line: positive power terminal (marked with: +5V or VCC). White line: Negative voltage Data line (identified as: Data- or USB)Port-). Green line: Positive voltage Data line (identified as: Data+ or USBPort+), data + (+3V). Black line: Ground (marked by: GND). Power Supply - (VBUS).
First, the tool is ready, as shown in the figure. Then strip the wire to a suitable length (about 2 cm), as shown in the figure. Then weld the four wires correctly according to the sequence (positive red power supply, negative black power supply, negative white data, positive green data), as shown in the figure. Then the joint part is specially wrapped with hot melt adhesive and heat shrink tube, as shown in the figure. In the end, it's all done, likeAs shown in the figure.
Theoretically, the three-wire system is not as rigorous as the four-wire system, but the three-wire system can save wires, and in actual use, the three-wire system is more widely used. In the three-wire system, one end of the PT100 leads to a wire, and the other end leads to two wires, one of which is blocked by current during measurement. Remember that the red line and the black line can not be confused because the positive and negative can not be reversed, which means short circuit.
Slightly slower charging speed: compared to the wired charging bank, even if it is ownedThe charging speed of the wireless charging bank will be slightly slower, especially for devices with large capacity batteries, and the charging time is longer. Compatibility limitations: Wireless charging bank requires devices to support Qi or other wireless charging standards, and devices that do not support wireless charging technology cannot enjoy its convenience.
Although both are to charge smartphones and other devices, there are still some differences between the two. Simply put, wireless charging is more convenient, does not require wire entanglement, can remove the trouble of wire; The wired charging treasure is faster in charging speed, such as the Secretary-General is a wired charging treasure, which supports PD two-way fast chargeThe charging speed is faster than the general product. Wireless charging treasure does not need interface support, as long as it supports wireless charging function can be used.
Wireless charging, speaking of this, reminiscent of black technology, it is also a progress in science and technology, or should be supported.
Apple cable charge well. The advantage of the magnetic magnet is that it can be adsorbated near, and the adsorption can be charged. The charger is automatically aligned with the position of the charging coil, which solves the problem of manual alignment for traditional wireless charging. But it is still a wired form, and the power is not as good as wired charging, so the key moment or wired charging is more realistic. ifIf the MagSafe magnetic charger wants to become normal, it depends on when the iPhone removes the charging port.
Traditional charging bank to charge the mobile phone, basically through the wire transmission, charging speed is faster; Wireless charger to charge the phone, no need to plug and unplug, but the speed is slower. Wireless chargers do not need wire transmission, mobile phones need wireless charging function has become a trend, the wide use of wireless charging can make our mobile phone life more convenient.
The iPhone12 can be charged wirelessly or via wired. Both have their own advantages and disadvantagesThe charging cable. In addition, wireless charging technology is also being applied to furniture and cars, allowing users to charge at any time at home and in the car.
Wireless charging good. In wireless charging, the charger and the charged device do not need direct contact, easy to use, strong environmental adaptability, avoiding the physical interface, so there will be no interface wear, sparks, leakage and other problems, in addition, wireless charging can also achieve high voltage, high current, high power charging. The cable is charged. Wireless charging also requires a wired charger, but also more wireless charging board.
is definitely better wireless charging, traditional wired charging due to frequent plugging,After a long time, the charging socket will be unwelded from the circuit board, resulting in no charging, so wireless charging is better than wired charging.
Apple cable charge well. The advantage of the magnetic magnet is that it can be adsorbated near, and the adsorption can be charged. The charger is automatically aligned with the position of the charging coil, which solves the problem of manual alignment for traditional wireless charging. But it is still a wired form, and the power is not as good as wired charging, so the key moment or wired charging is more realistic. If the MagSafe magnetic charger wants to turn into a regular one, it will depend on when the iPhone removes the charging port.
The pursuit of higher portability and comfortSex, you can choose wireless charging; In pursuit of faster charging speed and wider application range, you can choose wired charging. The advantage of wireless charging is that it provides higher portability, which is especially suitable for wearable devices, smart home and other fields. However, the charging speed of wireless charging is relatively slow, and the distance between the charger and the device will affect the charging effect.