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Filtering capacitors work by smoothing out fluctuations in voltage within a circuit, particularly in power supply applications. When placed in parallel with the load, they charge up during voltage peaks and discharge during dips, effectively reducing ripple and providing a more constant voltage output. This action helps to filter out high-frequency noise and stabilize the voltage, ensuring that electronic components receive a steady power supply. By storing and releasing energy, filtering capacitors enhance the performance and reliability of electronic circuits.

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2mo ago

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How ceramic capacitors can do filtering in replacement of electrolytic capacitors?

Electrolytic capacitors do a very good job of bulk filtering, but they have poor high frequency performance due to distributed inductance. The ceramic capacitor has excellent high frequence response, and will often be used in parallel to the electrolytic to filter out fast rise time step changes in current demand.


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What is the basic principles of capacitors?

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