In-line electrolytic capacitor distinguish positive and negative electrode in-line electrolytic capacitor Qingdao cbb wireless charge Positive and negative electrode can be distinguished by pin length and shell color Qingdao cbb wireless charge , pin length is positive; Short pin is negative; The gray part of the housing with a small area corresponds to a negative pin and the other end is positive. For encapsulation, the positive terminal is generally indicated by marking ""; Or use a coloring area to indicate negativeExtreme.
The usual circuit board is marked with a - sign on or near the two pads of the capacitor, and the color on the actual circuit board is white, that is, the pin on the side of the printed white face is the negative electrode. The name of the circuit board is: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper plate, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board.
The circle is divided into two halves, one half is black for negative, and the other half is colorless for positive. The black shadow on the left is the negative terminal, and the right is the positive terminal. Main board power-onThe capacitance position, if it is black and white, the black part is negative, and the white part is positive. If it is white or black and colorless, the part that is painted white or black is negative, and the part that is not painted is positive. Under normal circumstances, the range of negative painting part is small.
First of all, Qingdao cbb wireless charging Let's look at the differentiation method of in-line electrolytic capacitors. Its positive and negative poles can be distinguished by the length of the pin and the color of the housing: the longer end of the pin is positive, and the shorter end is negative; The pin corresponding to the gray area on the housing is the negative pole, and the other end is the positive pole. The package usually doesMark "" or color the area as an indication. For the chip aluminum electrolytic capacitor, the obtuse part on the base corresponds to the positive electrode, and the straight side part corresponds to the negative electrode.
1, this is indeed the Qingdao cbb wireless charging Qingdao cbb wireless charging , the customer originally used TDK GRM315C1H104A01L scenario
2, this is OK, it is the earliest wireless charging CBB capacitor in the industry, belongs to the most mature technology Qingdao cbb wireless charging The biggest advantage of CBB is that it is cheapThey only cost a few cents each. 3, Lei Jun held a public speech on the 10th anniversary of millet, and released the millet 10 supreme commemorative version of the mobile phone, charging, the mobile phone built-in graphene-based butterfly fast charging battery, support 120W wired second charge 50W wireless second charge 10W wireless reverse charging. In addition, a series of accessories such as hundred-watt car charging, intelligent tracking wireless charging, vertical wireless charging bank and vertical air-cooled wireless charging are also launched.
4, it is also necessary to have a fixed device, which is radiated after being connected to the power supply. The mobile phone can receive the signal to charge the mobile phone wirelesslyElectricity. Personal recommendations do not recommend the frequent use of such a charging method, because it is related to distance and current, voltage. It is not good for the use of the phone battery, and it is often charged like this. It's also bad for a fully charged phone.
5, the front of the circuit board also has a shielding cover, and the pin CBB resonant capacitor is attached to the shielding cover. On the back of the circuit board, the thermistors of the battery and coil are respectively on both sides, and the solder joints of the wireless charging coil are on the inside. Compare the size of a $1 coin. Battery spot welding and PCB connection. Circuit board interface list. First remove the front of a larger shielding cover, the inside is two IC, positive and negative terminals in the middle of the black sealantThe battery protection tube is reinforced with glue.
6, it is recommended that you replace the original charger, and check whether there is software running in the background of the phone, if there is an attempt to close. When using the original charger, the phone is charging and heating abnormally, which may be a fault of the phone. It is recommended that you back up important data on the phone first and restore the phone to factory Settings. If the phone is still hot after the factory is restored, you can take the invoice repair card to the nearby service center, and professional engineers will help you detect and repair.
High cost: The charger needs to have a push coil Qingdao cbb wireless charge electronic circuit Qingdao cbb wireless charge , And in the receiving device need to have power conversion electronic devices Qingdao cbb wireless charging , both need to have coils, and need high frequency filtering circuit to meet electromagnetic compatibility, so the cost is higher than direct charging.
This is trueIn fact, the customer used TDK GRM315C1H104A01L, but the market price was confused and the delivery was unstable due to the suspension of TDK production. In view of this situation, Dongguan Keya Electronics has developed a new ultra-thin polypropylene film capacitor with reliable and stable performance, temperature rise, and size adjustment of the circuit board can be placed. After 500 hours of aging test, After trial verification, it can be replaced with confidence.
Wireless charging technology does not use a charging line at all, but a technology that uses magnetic fields to charge devices, inspired by wireless power transmission technology. Magnetic resonance is used to transfer electricity in the air between the charger and the deviceMaterial shell, fuselage edge clear end Angle arc transition, support plate is black, base sandblasting treatment is gold. From the front, the front end of the base is equipped with LED indicators, and the support board is layered above and below, using different designs. Indicator light is green when working.
Conclusion: Millet vertical air-cooled wireless charger with its small size, large output characteristics, become my recent purchase highlights. The following is an intuitive introduction to this product: Unpacking experience: / Millet vertical air-cooled wireless charging 30W in white transparent plastic packaging, visible at a glance. Its simple and generous orange-red packaging box contains the main body, data cable, charging head andThe instruction manual reflects Xiaomi's consistent efficient style.
Compared with the common 10W wireless charging technology on the market, Xiaomi's 30W wireless flash charge can charge half of the 4000mAh battery in 25 minutes, achieving the efficiency of "wireless beyond wired". Xiaomi's vertical air-cooled wireless charge 30W is cleverly designed with an ergonomic tilt, which is convenient for users to operate while charging, and the built-in ultra-quiet fan can effectively actively dissipate heat, improving the comfort of the charging process.
Millet vertical air cooled wireless charger (55W black) 199 yuan currently milletMaximum power (charging speed is the fastest) wireless charger, if the phone is 30W or 33W wireless charging power, then it is recommended that you "redundant" to buy this high-power wireless charger, because the mobile phone upgrade speed is faster, and wireless charger this product can be used for several years, in the future for a new mobile phone can also do power coverage.
Among them, Xiaomi released the vertical air-cooled wireless charge 30W, with its power output of up to 30W, breaking the limitations of traditional wireless charging. It follows the Qi charging standard and is highly compatible, regardless of whether your device supports it or not, it can be easily handled.