求翻译：本文在控制上采用恒压频比控制，软件程序使得参数的输入和提升机运行方式的改变极为方便，新型集成元件的采用也使得它的开发周期短。同时，本文对SA4828三相SPWM波发生器的使用和编程进行了比较详细介绍，完成了整个系统主要控制部分的软硬件设计。是什么意思？

Constant control software program makes the change of the parameter input and hoist operation mode is very convenient, the adoption of the new integrated components also makes it a short development cycle control. At the same time, this article on sa4828 three-phase spwm use and programming of the w

In this article on the control with constant voltage frequency than that of the control, the software program allows the input of parameters and raise the running changes in the way in which are very convenient, the new Integrated element also makes it the use of shorter development cycle. In this a

This article uses the constant pressure frequency in the control compared to the control, the software procedure causes the parameter the input and the elevator movement way change is extremely convenient, the new integrated part use also causes its development cycle to be short.At the same time, th

This article adopts frequency control system of constant pressure at the control, software program makes parameter input and extremely easy hoist operation mode changes, development of new integrated component makes it shorter. At the same time, this article SA4828 three-phase SPWM wave generator us

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