关于桥式逆变电路的研究

Discussion on Bridge Inverter Circuit

文中设计以围绕集成逆变器件IM14400所构建的全桥DC/AC逆变电路为核心,通过MSP430F5529单片机采用SPWM控制技术,利用等面积采样法对正弦波采得SPWM波,共同实现三相正弦波输出。后经过LC滤波电路将梯形过滤为平滑正弦波。

In this design,the whole bridge DC/AC inverter circuit is centered around the integrated inverter device IM14400,and the SPWM control technology is adopted by the MSP430F5529 single chip microcomputer,and the SPWM wave is obtained by the equal area sampling method.The sine wave output is realized by the sine wave.After the LC filter circuit,the trapezium is filtered as a smooth sine wave.