Apart from this step, designers should also connect an EMI filter, such as a ferrite bead, to the output of the amplifier. 除此之外,调试人员还应将电磁波滤波器连接至音频放大器音频输出端,诸如铁氧体磁环均能达到类似的过滤效果。
The ferrite magnetic bead and its principle of work are introduced in this paper. 铁氧体磁珠(FB),作为电磁干扰抑制元件得到了广泛应用。
Multilayer Chip Ferrite Large Current Bead – PB Series. 叠层片式铁氧体大电流磁珠&PB系列。