而对于SPWM逆变，采用数字电路实现SPWM触发脉冲的生成，在消除谐波、提高开关频率、简化电路结构，提高集成度和可靠性等方面，取得了很好的效果。

The digital circuits are introduced in the SPWM inversion, which have brought the elimination of harmonics, high switching frequency, simplified circuits and high reliability.

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利用软件取代模拟和数字器件的数字化控制，提高了产品的集成度，增强了系统的柔性和智能性。

Digital control, in which software replaces analog and digital instruments, can increase the integration of the product, promote the flexibility and intelligence of the system.

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随着生产工艺的改进，电路的集成度还在不断的提高。

With the development of production technology, the integration of IC is also continuously improved.

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