In the paper, a thermal simulation method has been described using ANSYS software based DC/DC power module. Experiment has been done to verify the result of the thermal simulation.

本文以大功率电子组件DC/DC电源变换器为例，提出了基于通用的大型有限元分析软件ANSYS进行热模拟分析方法，并利用实验结果对模拟结果进行了验证。

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This article presents a design of permanent magnetic brushless DC motor control system and mainly involves the hardware circuit design of speed closed loop and power module drive.

介绍了一种永磁无刷直流电机控制系统的设计方案，主要涉及速度闭环和功率模块驱动的硬件电路设计；并通过实验证明该设计可直接用于小型无刷直流电机的控制。

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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。

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