The functions of power transformers are power transmission, voltage conversion, and insulation isolation. As a major soft magnetic electromagnetic component, they are widely used in power supply technology and power electronics technology. According to the size of the transmitted power, the power transformer can be divided into several levels: 10kVA or above is high power, 10kVA~0.5kVA is medium power, 0.5kVA-25VA is low power, and below 25VA is micro power. It should be self-evident that the design of power transformers varies depending on the transmission power. Some people have translated the English name "Power Transformers" into "power transformers" based on its main function of power transmission, which is still used in many literature materials. Is it better to call it a "power transformer" or a "power transformer"? It is up to authoritative institutions in the field of technological terminology to make a decision. It is used in almost all electronic products, and its principle is simple, but the winding process of transformers may have different requirements according to different usage scenarios (different purposes). The main functions of transformers include: voltage conversion; Impedance transformation; Isolation; For voltage stabilization (magnetic saturation transformers), the commonly used iron core shapes for transformers generally include E-type and C-type iron cores
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