1, mobile phone wireless charging motherboard welding wire definition refers to the mobile phone wireless charging motherboard welding connection circuit. These welded wire connections are not only for fixing electronic components, but more importantly for achieving normal transmission and communication functions of the circuit. The reason is mobile wirelessThe various electronic components on the charge board need to be connected to each other by welding wires to establish the path of the circuit.
2, wireless charging is what is going on, as the name suggests is charging do not plug the cable. Similar to WiFi, it is very convenient. In theory, mobile phones and other electronic devices can be powered anytime, anywhere. However, wireless charging can not be transmitted as far as WiFi for the time being, and now mature solutions can only achieve wireless charging within a distance of 10mm, generally a distance of about 3~5mm is better, such wireless charging technology uses magnetic induction wireless charging technology.
3, generalWireless charging output is five volts, is to be connected to the phone's data cable jack here. Android head as long as one positive and one negative on the line, Apple 3-4 with, more than two are D D-, the 2 can be short together is 3, type-c connector is one positive and two negative. If the wireless reception adds a battery management chip, then the output is 2V, you can directly connect the positive and negative terminals to the mobile phone battery to charge.
4, contact 4 is the antenna signal output. 2 or 3 is the ground wire of the antenna and can be connected. 2: No components behind the first picture? If there is no device, the channel is invalid.
5, youIf the charging port has a problem, if the non-professional repair, they may tell you that the charging port is just broken, but in fact it may be the charging module of the motherboard has a problem. Because dismantling an iPhone is a troublesome thing, we suggest that you first go to Apple for after-sales testing to determine the specific problem, and then we can discuss a most suitable repair plan.
TX stands for Send. A transmitter (TX) is used to send signals or data. Can beIt is regarded as a device that converts digital or electrical signals into radio waves or cable transmission signals. TX is used to convert data or information in a computer or other device into signals or data packets so that they can be received by other devices. Conceptually, TX and RX are opposites of each other.
TX/RX is the sending end and the receiving end, GND is the ground, VCC is the power supply, NC is not connected. This is a typical serial signal.
rx stands for receiving, and it means a receiver, a device that receives signals from radio waves or cables.It is converted into a digital or electrical signal and then transmitted to a computer or other device to obtain the required information. In the transmission of information, rx plays the role of receiving and decoding.
Specifically, Tx represents the transmission of data from a local device to a remote device, that is, the transmission process of data; Rx corresponds to the return of data from the remote device to the local device, that is, the receiving link. In the architecture of fiber optic communication, Tx and Rx are indispensable because they are the basis for two-way communication. Without one party, the exchange of information cannot be completed, and both the sending and receiving of data depend on the simultaneous operation of the two.
rx indicates that rx indicates receive and tx indicates Transmit. receive Indicates the downstream traffic received from the start to the present. Transmit Indicates upstream traffic transmitted from the start to the present. In INTTERFACE, when we view the traffic of a WAN NIC, RX is downlink traffic and TX is uplink traffic. In SIMPLEQUEUES, TX is the downstream traffic limit when the destination address is a workstation IP and the network card is a WAN.
tx is for sending (transport), rx is receive. The optical fiber is in pairs, and the transceiver is one pair. Sending and receiving must be at the same time, only receiving and not sending, only sending and not receiving are problematic. If the connection is successful, all power lights of the optical transceiver must be on.
1, the amount of charging within minutes reaches or exceeds 10%, and the charging efficiency is even higher than the direct use of wireless chargers. By contrastThe Deep Blue SL0 Long comfortable Da and Wei brand Blue Mountain DHT-PHEV are obviously not too friendly for Apple iPhone 13 Pro, and the charging amount of 15 minutes is 3%, which is a large gap compared with other test models.
2, the highest charging efficiency of Xiaomi and Huawei require the mobile phone to support their own protocols, so we separately tested the Huawei Mate 30 with Huawei wireless charging mobile phone bracket and the Xiaomi 10 with Xiaomi wireless charging mobile phone bracket. The standard test uses the iPhone 11 pro with all wireless charging phone mounts, and the rule is that the phone staysIn the light state, test the time required to charge 10% (from 40% to 50% of the phone charge) on all products under test.
3, "Electric vehicle wireless charging system Part 2: Communication protocol between vehicle charger and charging device" (GB/T 38772), "Electric vehicle wireless charging system Part 3: Special requirements" (GB/T 38773), "Electric vehicle wireless charging System Part 4: Electromagnetic environmental limits and test methods (GB/T 38774) a total of 4 national standards.
4, lead PThe configuration of HEV's medium and high configuration models is quite rich, and the high configuration models we tested can be described as luxury. Inductive trunk, mobile phone wireless charging level is relatively rare configuration. In fact, in Beijing Hyundai's less than 100,000 low-end models have been equipped with mobile phone wireless charging to cover almost all models.
1, What are the components of wireless charging? The left side is TX, that is, the transmitter, and the corresponding product is the wireless charging transmitter. On the right is Rx, that is, the receiving end, and the corresponding product is a mobile phone with wireless charging function. TX end: MCU, power full bridge, and LC resonant Tank composed of inductors and capacitors, where the inductor is the transmitting end coil.
2, there are two kinds of power supply for the radio energy transmission unit: 220V AC and 24V DC (such as automotive power supply), which is selected by relay J. In accordance with the principle of AC priority, the normally closed contact of relay J in the figure is connected to DC (battery BT1). Normally, S3 is connected.
3, but the load, the general design is 2 timesU Input. The larger the filter capacitance, the higher the output voltage, and the lower the vice versa. In a single-phase bridge rectifier circuit, if there is no filter capacitor, the output voltage is 0.9 times of the AC input voltage when the load is open, that is, U output =0.9*U input. Under load, the formula remains the same: U output =0.9*U input. This conclusion is applicable to both bridge and full wave rectifier circuits.
4, electromagnetic induction primary coil of a certain frequency of alternating current, through electromagnetic induction in the secondary coil to produce a certain current, so as to transfer energy from the transmission end to the receiving end.
2, the use of Roewe rx5max wireless charging method is very simple, only need to put the mobile phone that supports wireless charging on the wireless charging board, note that different mobile phone models may need to adjust the position. The Roewe RX5 MAX is an all-new SUV positioned between the Roewe RX5 and the Roewe RX8. In the exterior design, it adopts the Roewe homeThe classic rhythmic design of the family, and the addition of strong aesthetic design language, gives people a new visual experience.
3, measured, SAIC Roewe RX Weilai ET5 and BMW 7 series support Apple fast charge protocol, so the test results are satisfactory, the charging amount within 15 minutes reached or exceeded 10%, charging efficiency is even higher than the direct use of wireless chargers.