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In the design of new models, mainly depends on the following aspects:
First look at power inductors usage scenarios, such as what kind of loop, can be used for general power inductor DC-DC power supply circuit, audio power supply circuit, CPU circuit loop;
If the DC-DC circuit, power demand inductor self resonant frequency greater than the frequency of the loop;
Select the appropriate design of the circuit inductance value based, as in the DC-DC loop, power inductors main role is energy storage and filtering, the general sense of a large amount of filtering characteristics corresponding to the strong, but at the same time a large amount of sense will increase the inductance of RDC, Effect of rated current inductance and response rate, and therefore a sense of volume to a reasonable choice;
According to the size selection loop current power inductors, power inductors generally have two current, DC superimposed current and temperature rise allowable current at the time of selection, which needs to be smaller as the rated current value.
Finally, according to product size, pads, etc. Select the appropriate size of power inductors