[ e - Learning ] Bridgeless PFC - Basics of Switching Power Supplies (8)

One method for improving the efficiency of AC / DC converters is bridgeless PFC (BL - PFC). We will explain the advantages and disadvantages (EMC) of BL-PFC compared with conventional PFC in this video. Watch more videos:    • 英語版  

Chapters:
0:00 Basics of Switching Power Supply - Bridgeless PFC converter -
0:06 AC-DC Converter
0:40 Proportion of loss for input stage (boost PFC)
1:27 Operation of conventional PFC
2:26 Operation of bridgeless PFC
3:06 Comparison of circuits
3:42 Problem and Countermeasures (Conventional PFC circuit)
3:48 Problem and Countermeasures (Bridgeless PFC circuit)
5:19 Common mode noise Countermeasure Circuit
5:51 Reference design - reference design of 1.6kW power supply for server -

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