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求输入DC12v,输出AC 220v的超高效率逆变方案

我想用全套Ti的芯片,据说Ti的芯片效率超高,我想做特别高效率的,在大学课程设计里面脱颖而出,也为Ti公司打个广告。

设计指标:

输入电压:

12V直流电压;输出电压220V交流;单相,

功率:500W;

说明:输入电压直流12V采用DC/DC变换器或现成的开关电源;

正弦波发生器可以采用专用集成电路或用单片机等CPU自制。