请高手指教一下:二次逆变里的辅助电路的作用--只是简单的振荡电路吗?用在这里有什么好处?
![](http://u.dianyuan.com/bbs/u/72/991961228901881.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20)
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图中Q1 3 5标2SK2837错误,应为IRFP260N.