capacitanceThere are many uses for it, mainly including the following:. DC isolation: Its function is to prevent DC from passing through and allow AC to pass through Coupling: As a connection between two circuits, it allows AC signals to pass through and transmit to the next level circuit.
Filtering: in the power circuit, the rectifier circuit turns AC into pulsating DC, and after the rectifier circuit, a large capacity Electrolytic capacitor is connected to make use of its charge discharge characteristics to turn the pulsating DC voltage after rectification into relatively stable DC voltage. In practice, in order to prevent the power supply voltage of each part of the circuit from changing due to load changes, dozens to hundreds of microf Electrolytic capacitor are generally connected at the output end of the power supply and the input end of the load. Since the large Electrolytic capacitor generally has a certain inductance, which cannot effectively filter high-frequency and pulse interference signals, a capacitor with a capacity of 0.001 to -0.lpF is connected in parallel at both ends, To filter out high-frequency and pulse interference.
Temperature compensation: Compensate for the impact of insufficient temperature adaptability of other components to improve circuit stability.
Timing: Capacitors and resistors are used together to determine the time constant of the circuit.
Tune: Systematically tune circuits related to frequency, such as mobile phones, radios, and televisions.
Rectification: Open or close a semi closed conductor switching element at a predetermined time.
Energy storage: storing electrical energy for release when necessary.
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