搜索 - 科创

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答：被动式PFC一般采用电感补偿方法，通过使交流输入的基波电流与电压之间相位差减小来提高功率因数，被动式PFC的功率因数不是很高，只能达到0.7~0.8，并且发热量比较大。

然后，远离任何人为产生的电感应，他安装好设备并展示出功率输出。他断开天线的连接，并显示出输出功率立即停止了。他再次连接天线又像之前一样产生了输出。当重新连接地线，输出功率又回来了。

他理论水平也不低，当我说到电感分布电容难测时，他提出可用串联谐振法测量。他对所聘用的技术人员的技术水平有较强的辨别能力。聘用前，老板同我进行了四次长时间的交谈，短则四十几分，长则一个多小时。

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