Permanently biased magnetic component assembly. It includes the first group of magnetic circuits, the second group of magnetic circuits, and the excitation coils respectively arranged on the two groups of magnetic circuits; The magnet is connected to the magnetic circuit; the position of the permanent magnet and the polarity of the permanent magnet are set so that the direction of the permanent magnetic flux generated by the permanent magnet on the first group of magnetic circuit cores and the second group of magnetic circuit cores is the same as that of the excitation coil in the first group of magnetic circuit cores. The direction of the DC magnetic flux generated on the magnetic circuit core and the second group of magnetic circuit cores is opposite. The invention utilizes the permanent magnet flux generated by the permanent magnet to offset the DC flux generated by the DC part of the current flowing through the winding of the magnetic element and prevents the permanent magnet from being cut by the AC flux generated by the AC component of the current flowing in the winding of the magnetic element. , thereby not only reducing the volume of the magnetic core material in the magnetic element or increasing the working current of the magnetic element but also ensuring that the permanent magnet basically does not generate AC magnetic flux eddy current loss.

Use the permanent magnet flux generated by the permanent magnet to offset the DC flux generated by the DC part of the current flowing through the magnetic element winding, and prevent the high-frequency magnetic flux generated by the high-frequency component of the current flowing in the magnetic element winding from cutting the permanent magnet. , thereby not only reducing the volume of the magnetic material in the magnetic element but also ensuring the stability of the permanent magnet and the magnetic element.

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