驱动电路采用恒流斩波方式，提高了步进电机的运转扭矩和工作效率。

The driving circuits adopt constant current chopping for the purpose of improving rotating torque and increasing working efficiency of the stepper motor.

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建立了包括电流控制电路、功率驱动电路以及五相混合式步进电动机在内的恒频斩波恒总流驱动系统的完整的数学模型；

Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established.

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介绍了一种五相混合式步进电动机恒频斩波恒总流驱动新技术，及新五边形绕组联接方式，并给出了样机的实验结果。

This paper presents a new driving technique of 5-phase hybrid step motors and a new pentagon connecting pattern, the experimental results are given.

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