apfc原理及实现思路 apfc的原理 开关电源的波形失真的罪魁祸首是整流桥后面的电容，使用逐流电路后可以缓解这个问题，但不能根除，而主动式pfc能够根除这个问题。 主动式pfc的方法是直接将整流桥后面的电容直接去掉，让输入电流持续。

Short Notice for EO/AO and APFO Vacancy 2025 has been released. The online application process is expected to start from July ...

UPSC has shared a short notice for EPFO 2025 jobs. There are 230 openings for EO/AO and APFC. Full notice will come on July ...

The Anthony Pettis Fighting Championship (APFC) is making its New Mexico debut this weekend. The MMA promotion is coming to ...

The Union Public Service Commission (UPSC) has announced 230 vacancies for EPFO 2025 recruitment, including positions for ...

UPSC EPFO Notification 2025 is out for 230 vacancies of EO/AO and APFC posts. Online applications open from 29 July to 18 August 2025. Detailed notification to be released on 26 July.

Notification: Union Public Service Commission (UPSC) has issued a short recruitment notice for EPFO 2025 (Employees' ...

The Union Public Service Commission (UPSC) has released the short notification for one of its most anticipated recruitment ...