采用德国西门子IGBT变频，电压反馈串联谐振电路。变换效率高达97.5%以上。
Adopt IGBT frequency conversion of German Siemens and voltage feedback series resonance circuit. The conversion efficiency is reaching up to above 97.5%.
本文对模拟电子技术课程中有关“反馈”的判别方法，诸如正、负反馈，电压、电流反馈以及串联、并联反馈等做了详细的分析比较。
The determinant method of feedback, such as positive feedback and negative feedback, voltage feedback and current feedback, series feedback and parallel feedback, etc.
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