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About Transformer
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2025
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The principle of transformer
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The working principle of transformers is based on the law of electromagnetic induction. When an alternating current passes through the primary coil of a transformer, an alternating magnetic field is generated. This magnetic field will generate induced electromotive force in the secondary coil, thereby changing the voltage magnitude of the secondary coil. Changing the turns ratio of the primary and secondary coils can alter the magnitude of the output voltage.
Primary coil and secondary coil
The primary and secondary coils of a transformer are its main components. The primary coil carries the input current, while the secondary coil generates the output voltage. The primary coil and secondary coil are placed on the same iron core to enhance the coupling degree of the magnetic field and reduce magnetic leakage.
The function and composition of iron core
The iron core is an important component of a transformer, which not only serves to fix the primary and secondary coils, but also participates in the electromagnetic induction process. The iron core is usually made of stacked silicon steel sheets to reduce eddy currents and magnetic reluctance.
Types and quantities of windings
The winding of a transformer can be single-layer or double-layer, and its number of turns can also be adjusted as needed. The single-layer winding structure is simple, but the insulation difficulty is relatively high; And double-layer winding can increase insulation performance and reduce magnetic leakage. The number of windings depends on the design requirements and actual application scenarios of the transformer.
Industry Trends
Basic Knowledge of Transformers
Transformer Standards
History of Transformer
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