This paper describes the feature and function of a novel PWM control IC SA8281. A typical applicable circuit base on SA828.is given Experimental results prove the IC has the advantage of simple design, small volume , and reliable performance.

• 本文介绍了新型三相PWM专用芯片SA8281原理及应用,并在此基础上研制出一套逆变器调速装置,实验结果表明,以SA8281为控制芯片逆变器具有设计简单,体积小,性能可靠的优点。