What does a on-board DCDC look like?(5)

Loss of Magnetic Components
Transformer loss is also an important part of module switching power loss, and transformer loss mainly includes iron loss and copper loss. Iron loss refers to the high frequency loss caused by the material, shape, process structure and other related factors of the transformer, and copper loss refers to the conduction loss caused by the transformer winding circuit. In order to reduce the iron loss of the transformer, high frequency should be selected. It is a magnetic core material with good characteristics, low high frequency loss,

Regardless of how much control the product material and production process are, aging needs to be checked. Because the incoming inspection of electronic components and transformers is difficult to control, the quality stability of this batch of power supplies and whether the materials are detected to have potential safety hazards can only be detected through aging and high-temperature sampling of the entire batch of power supplies.