The entire process from AC grid input to DC output of the main circuit: 1. Input filter: It filters out the noise from the power grid while also preventing the noise generated by the equipment from being fed back into the public grid. 2. Rectification and filtering: Directly converts the AC power from the grid into a smoother DC power for the next stage of conversion. 3. Inversion: Converts the rectified DC power into high-frequency AC power, which is the core part of the high-frequency switching power supply. The higher the frequency, the smaller the ratio of volume, weight to output power. 4. Output rectification and filtering: Provides a stable and reliable DC power supply according to the load requirements.
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