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The working principle of DC power supply

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.04.01
The core working principle of a DC power supply is to convert fluctuating AC power into stable DC power. The key to this transformation lies in the application of rectifiers. A rectifier, like a sophisticated conductor, accurately captures the positive and negative half cycles of an AC signal and cleverly converts the negative or positive half cycles into a single direction of current. After the initial treatment of the rectifier, the direct current has begun to show signs, but there are still some unstable factors mixed in - ripples and fluctuations.



To eliminate these unstable factors and ensure the stability of the output voltage, a filtering circuit is usually connected after the rectifier. The filtering circuit is like a meticulous craftsman, carefully polishing the output voltage to make it smoother and more stable. Under the fine tuning of the filtering circuit, the ripple and fluctuation in the output voltage are greatly reduced, providing reliable guarantees for subsequent circuit applications.

In addition, some advanced DC power supplies will also be equipped with regulators to ensure a constant output voltage or current. The regulator is like a rigorous engineer, constantly monitoring changes in output voltage or current. Once deviations are detected, it will quickly adjust to ensure output stability. This is undoubtedly crucial for many applications that require extremely high power supply stability.

The entire working process of a DC power supply is actually a precise and complex collaborative operation of a circuit system. In this process, different components and circuit topologies are cleverly combined to achieve the conversion of AC to DC power, meeting the needs of various applications for DC power supply.
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