电动式纸盆扬声器是一个电声换能器,其能量传递过程如图1所示,输入音频信号的电能,转换为机械能,再由机械能转换为声能.由于一个扬声器在客观上包含了声的,机械的,以及电的三种物理量,势必引起理论分析的复杂性,本文中将三种物理量全部归并为电量的模拟性电路,借以分析扬声器的工作机理,这 Electric cone speaker is an electro-acoustic transducer, the energy transfer process shown in Figure 1, the input audio signal power, converted to mechanical energy, and then converted to mechanical energy by acoustic energy.Because a speaker objectively contains the sound Mechanical, and electrical three kinds of physical quantities, will inevitably lead to the complexity of theoretical analysis, this article will be all three physical quantities merged into the analog circuit power to analyze the working mechanism of the speaker, which