Switching power supply transformer design

The switching power supply transformer is a power transformer that has been added with the switch management setting. In use, it not only has the voltage conversion function of the ordinary transformer, but also has the function of insulation isolation and power transmission. It is widely used in the case of switching power supplies and the like involving high-frequency circuits. The design of the switching power supply transformer is very important for the use of the switching power supply transformer. The proper design can make the switching power supply transformer better control the current. The unreasonable design method will have a great impact on the use of the switching power supply transformer. Xiaobian will introduce the design method of switching power supply transformer for everyone.
Switching Power Transformers - Principle Switching Power transformers The most important materials are: insulating materials, wire materials, magnetic materials. The switching power supply transformer and the switching tube together form a self-excited or other excited intermittent oscillator, which modulates the DC voltage into a high-frequency pulse voltage, and finally functions as an energy transfer and conversion.
When the switch is turned on, the transformer converts the electrical energy into a magnetic field for storage, and releases the switch when it is turned off. In a forward circuit, when the switch is turned on, the input voltage is directly supplied to the load and stored in the energy storage inductor. When the switch is turned off, then the current is transferred from the energy storage inductor to the load.
More simply, the role of the switching power transformer is to convert the input DC voltage into the various low voltages we need in use. Switching power supply transformer-structure The following points should be considered in the design of the switching power supply transformer structure. The leakage magnetic flux must be small to reduce the leakage inductance of the winding. The structural design makes it easy to wind and lead the wire, which not only makes the installation of the transformer simple and convenient, but also is very helpful for the maintenance and production of the transformer. Make reasonable planning before design, so that the voltage device can have sufficient space and function to dissipate heat. If these factors are fully considered in designing the switching power supply transformer, then such a design can make the switching power supply transformer more safe and last longer. Switching Power Transformer - Choosing the choice of materials when designing a switching power transformer is very important, and the choice of the core is the weight of the switching power transformer. The choice of materials varies according to the purpose of the switching power transformer. The most widely used core used around us is the MnZn-Iron Oxide Core, which is also used in the part of the power input filter.

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