Principles of Transformer Winding Turns Design

　　The design of transformer winding turns is fundamentally based on the principle of electromagnetic induction, as described by Faraday's law. In a transformer, the primary and secondary windings are linked by a common magnetic flux within the core. This formula indicates that the voltage transformation ratio is directly proportional to the turns ratio.

　　When designing the number of winding turns, several factors must be considered. First, the required voltage transformation ratio for specific application scenarios, such as power transmission, distribution, or electrical equipment operation, determines the basic turns ratio. For example, in high - voltage power transmission, a large turns ratio is needed to step up the voltage for efficient long - distance transmission. Second, the magnetic flux density (\(B\)) in the core must be kept within an appropriate range.the magnetic flux density will be too high, leading to core saturation, excessive core losses, and overheating. Conversely, too many turns may increase the resistance of the windings, resulting in higher copper losses.

　　In addition, the power rating of the transformer also affects the winding turns design. Higher - power transformers often require thicker conductors and may need to adjust the number of turns to balance the current density and voltage requirements. Moreover, considerations for impedance matching, harmonic suppression, and electromagnetic interference also play important roles in the detailed design of winding turns.

Read recommendations:

EI-41 ADAPTER

10W Wall Plug US Plug Switching power supply

PD65W US

Switching Power Supply AC Adapter

20V 130W Switching Power Supply