According to the harmonic characteristics of electric locomotive typed SS4 under typical operating situations, the current module of harmonic source is proposed.

依据ss4型电力机车在典型工况下的谐波特点，提出了谐波源的电流模型。

youdao

The output buffer includes a differential input stage, a bias current source, a feedback module, and an output stage.

输出缓冲器包括差动输入级、偏压电流源、反馈模块以及输出级。

youdao

Derived the formula for computing quadratic harmonics of output current in the single phase unit power factor ac DC converter based on analysis of the circuit module of the equivalent current source.

在基于对等效电流源电路模型分析的基础上，推导出了单相单位功率因数变流器输出电流二次谐波的计算公式，将输出二次谐波电流正、反向交替注入交流输入侧来抵消电流中的谐波。

youdao