PWM调制的设计与实现

PWM modulation realization and application

PWM(脉宽宽度调制)信号广泛应用于电动机控制系统和功率电子应用场合中。在电动机控制系统,PWM被用来控制开关电源器件的开关时间,为电动机绕组提供所需的能量。介绍了以TMS320F2407 DSP(数字信号处理)的事件管理器为核心的PWM脉冲调制信号的产生方法,对系统硬件方案进行了设计。通过编写相应的Veriloge代码和与ModuleSim软件的结合使用,进行仿真,实现系统的初始化与脉冲输出功能。验证实验结果表明,该系统实现简单,电压利用率高,实时性强,有效地提高了电机的运行性能。

PWM （pulse width width modulation） signals are widely used in motor control system and power electronic application situation. In the motor control system, PWM is used to control switch power supply device switch time, for motor winding provide energy. Introduces the TMS320F2407 DSP （digital signal processing） event manager is the core of the PWM pulse width modulation signal generation method, the system hardware scheme in the design. By writing the corresponding Veriloge code and ModuleSim software with the combination of simulation, realize system initialization and pulse output function. Verify the experimental results show that the system is simple, voltage utilization ratio is high, strong real-time property, effectively improve the performance of the motor.