It is necessary to match a suitable CBB capacitor to complete the design of wireless charging coil, the specific capacity depends on the inductance of the coil. In this case, the inductance of the coil is 6.8UH, so the CBB capacitor that needs to be matched should be the appropriate size to ensure the optimal frequency response and performance of the coil.
Further experiments and tests are recommended to determine the optimal capacitance value and to ensure the stability and reliability of the capacitor. Ultimately, the right capacitor choice can significantly improve the efficiency and functionality of your device.
According to the calculation, a circuit with a wireless charging coil inductance of 6.8UH requires a CBB capacitor with a value of 168.77pF, which can be calculated by using the resonant frequency formula. It should be noted that different circuit parameters will have different effects on the results, so the selection of capacitors should be carefully considered and reasonable adjustments should be made to ensure the stability and performance of the circuit.