Wireless charging PCB Wireless charging plug-in capacitor , different functions Wireless charging plug-in capacitor The components required are different. The required components are wireless charging capacitor : resistor wireless charging capacitor , capacitor wireless charging capacitor , resonant capacitor, resonant coil, MOS tube, control chip, protocol chip.
Control chip: manages the entire wireless charging process, including voltage regulation, power control, communication and other functions. Power amplifier (PA) : Increases signal strength in order to transmit energy efficiently. Oscillators and modulators: for generationHigh frequency AC signals transmitted wirelessly. Coils: Used to generate or receive electromagnetic fields, are a key part of wireless charging.
The transmitting end is the wireless charger, and the receiving end is the mobile phone. There is a coil at the transmitting end and a coil at the receiving end. The transmitting end transmits energy through the control board and coil, and the receiving end receives energy through the control board and coil, so that wireless charging can be achieved. The following picture shows the charging situation of Samsung S6 mobile phone and Polopai Technology's wireless charging mobile power supply. The mobile phone can start charging when it is placed on the wireless charger, without charging through the USB interface connection.
singleLaminate: a circuit board with copper on one side and no copper on the other. Usually the components are placed on the side without copper, and the side with copper is mainly used for wiring and welding. (2) Double-layer board: that is, a circuit board with copper on both sides, usually called the Top Layer on one side and the Bottom Layer on the other. Generally, the top layer is used as the component surface, and the bottom layer is used as the component welding surface.
1, electronic scale wireless charging refers to the electricityThe sub-scale is equipped with a wireless charging module wireless charging plug-in capacitor , which transmits power to the electronic scale through a wireless charger. The wireless charging module has built-in components such as inductors and capacitors Wireless charging capacitor , which can convert the electromagnetic field into electrical energy Wireless charging capacitor , thus providing a stable power supply for the electronic scale. Compared with the traditional wired charging method wireless charging plug-in capacitor , wireless charging of electronic scale has many obvious advantages. <2, charging time Intelligent electronic said there are generally two charging methods, one is direct plug, one is wireless charging. No matter what kind of charging method, the charging time is relatively fast, and most electronics say that the charging time is between 1-2 hours. Of course, the charging time will also be affected by factors such as the capacity of the electronic battery and the length of use time.
3, can not be wireless charging. Just open the manual and read it.
4, wireless charger Wireless charging plug-in capacitor : such as Apple's MagSafe charger, Anker wireless charger, etc., convenient and fast. Smart speaker: such as Amazon Echo, Google Home, etc., multi-functional, capable of voice control. Wireless routers: Brands such as TP-Link, ASUS, etc. provide a stable network connection. Electronic makeup mirror: such as Simplehuman, iHome and other brands, can provide a clearer makeup effect.
1 mAh. Only 1500mAh is less than, the charging mobile phone is only 5W power, and the actual use of mobile phones can not even be charged. MagSafeBatteryPack is an Apple phone charging case, also known as the smart battery case, it is similar in design to the iPhone silicone case, but the battery case has a bump on the back.
1, in this circuit wireless charging plug-inThe resonant frequency of the capacitor , inductor L1 and capacitor C1< /strong> wireless charger capacitor is set to 1MHz. Because the circuit is in a resonant state, the no-load current is very small even if the receiving coil is not near the transmitting coil. At the receiving end, the resonance principle is also used to improve the efficiency of energy transmission. Schottky diode is used to rectify the signal, after filtering capacitor processing, to obtain direct current, and then charge the battery. In the best working condition, the charging current can reach more than 0.6A.
2, inductor L1 and capacitor C1 resonant frequencyThe rate is 1MHz, and because the circuit is resonant, the no-load current is small when the receiving coil is not near the transmitting coil. The receiving end also adopts the mode of resonance, which can maximize the transmission efficiency of energy, and the direct current is obtained by the filtered capacitor after the Schottky diode is rectified, and the charging current is above 0.6A. If the coil is made into a barrel shape, the transmission efficiency will be higher.
3, wireless charging coil A6 three 3 coil - inductance 15uH. Inductance basic formula and inductance definition formula: L=μ×Ae*N2/l. Where: L represents inductance,ng>, in 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.
The inductor L1 and the capacitor C1 have a resonant frequency of 1MHz, and because the circuit is resonant, the no-load current is small when the receiving coil is not near the transmitting coil. The receiving end also adopts the mode of resonance, which can maximize the transmission efficiency of energy, and the direct current is obtained by the filtered capacitor after the Schottky diode is rectified, and the charging current is above 0.6A. If the coil is made into a barrel shape, passIt will be more efficient.
Because the circuit is in a resonant state, the no-load current is very small even if the receiving coil is not near the transmitting coil. At the receiving end, the resonance principle is also used to improve the efficiency of energy transmission. Schottky diode is used to rectify the signal, after filtering capacitor processing, to obtain direct current, and then charge the battery. In the best working condition, the charging current can reach more than 0.6A.
The same size. The same size and as close as possible, otherwise it will have no effect, low conversion efficiency.