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Hot Sale White CBB60 Capacitor 450V 25/70/21 45uf Run Capacitor

Products Show The role of electrolytic capacitors in the circuit 1.Filtering effect: in the power supply circuit, the rectifier circuit changes the ac into the pulsating dc, and after the rectifier circuit is connected with a large capacity electrolytic capacitor, the pulsating dc voltage after...

Products Show

The role of electrolytic capacitors in the circuit

1.Filtering effect: in the power supply circuit, the rectifier circuit changes the ac into the pulsating dc, and after the rectifier circuit is connected with a large capacity electrolytic capacitor, the pulsating dc voltage after the rectifier is changed into a relatively stable dc voltage by using its charge-discharge characteristics. In practice, in order to prevent the power supply voltage of each part of the circuit from changing due to the load, there are usually tens to hundreds of micro electrolytic capacitors connected to the output end of the power supply and the input end of the load. Because large-capacity electrolytic capacitors generally have certain inductance and cannot effectively filter high-frequency and pulse disturbing signals, a capacitor with a capacity of 0.001--0. LpF is connected in parallel at both ends to filter high-frequency and pulse disturbing signals.


2. Coupling effect: in the transmission and expansion of low-frequency signals, capacitive coupling is often used to prevent the static operation points of the front and rear circuits from influencing each other. In order to prevent the loss of low frequency components in the signal is too large, the electrolytic capacitor with a large capacity is generally selected.


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