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What does a capacitor do?
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Dongguan Mu Xin electronics co., ltd
In a DC circuit, a capacitor is equivalent to an open circuit. Capacitor is a kind of component that can store charge, and it is also one of the most commonly used electronic components. This has to start with the structure of the capacitor. A simpler capacitor consists of plates at both ends and an insulating dielectric in the middle. After electrifying, the plate is charged, forming a voltage, but because there is an insulating substance in the middle, the whole capacitor is not conductive. Any substance is relatively insulated. When the voltage across this substance increases to a certain extent, it can conduct electricity. We call this voltage breakdown voltage. Capacitance is no exception. They are not insulators when they are decomposed. The process of capacitor charging and discharging has time. At this time, a changing electric field is formed between the plates, and this electric field is also a function of time. In fact, current flows between capacitors in the form of electric field. The capacitance in the frequency division circuit is called frequency division capacitance. In the speaker frequency division circuit of the sound box, the high frequency speaker works in the high frequency band, the intermediate frequency speaker works in the middle frequency band and the low frequency speaker works in the low frequency band by using the frequency division capacitor circuit. Load capacitance: refers to the effective external capacitance that determines the resonant frequency of the load together with the quartz crystal resonator. Common standard values of load capacitance are 16pF, 20pF, 30pF, 50pF, 100pF. The load capacitance can be properly adjusted according to the specific situation, and the working frequency of the resonator can generally be adjusted to the nominal value by adjustment. For more information, please consult Dongguan Mu Xin Electronics Co., Ltd., thank you!