How do you design a power supply circuit to avoid ripple and harmonics that can affect your signal quality?

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A power supply circuit converts an AC voltage source into a DC voltage output that can be used to power electronic devices. However, the conversion process is not perfect and can introduce unwanted variations in the output voltage, such as ripple and harmonics. These variations can affect the signal quality of your circuit and cause noise, distortion, and interference. How do you design a power supply circuit to avoid ripple and harmonics that can affect your signal quality? In this article, you will learn about some basic concepts and techniques to improve your power supply circuit design.