本文以铁道信号电源为背景，研究了一种单极性调制的逆变电源。

Based on the power supply for railway signal system, this dissertation investigates an inverter controlled by the strategy of unipolar modulation.

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介绍了一种使用单片机8031在线实现三相单极性调制的TPWM波形的方法。

This paper introduces a method of using chip microcomputer 8031 to generate triphase, single polar and modulated TPWM waveform with online.

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本文对双极性调制的无刷直流电动机仿真分析了转速和调制频率对转矩影响同时给出仿真结果。

This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation, at the same time the results are given.

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