Schaltnetzteile & aktive PFC einfach erklärt

Active PFC is constantly mentioned, but hardly anyone clearly explains what it actually does in a switched-mode power supply. After watching this video, you'll know why the input current without PFC pulsates horribly, why cos phi falls short here, and how active PFC shapes the current cleanly. In this video: • what PFC actually means • why rectifiers and electrolytic capacitors generate current spikes • why a poor-quality switched-mode power supply puts an unclean load on the mains • what harmonics have to do with it • how active PFC works with inductors, MOSFETs, and regulation • why boost converters, DC links, and power factor are related • what's really important for apprentices, exams, workshops, and repair videos For more straightforward electrical engineering, listen to the "Electrical Engineering Podcast by Giancarlo." If you prefer clear, concise explanations of technical concepts, you've come to the right place. Become a channel member and receive exclusive benefits:    / @elektrotechnikpodcast   For more information and answers to further questions and topics, including the various journeyman's exams for different electrical trades, as well as general content related to vocational training, technician courses, and master craftsman programs, listen to the Electrical Engineering Podcast by Giancarlo. Website: www.elektrotechnikpodcast.de Want to support me? https://www.paypal.com/donate/?hosted... Download area: https://drive.google.com/drive/u/2/fo... Instagram:   / elektro.podcast_by_giancarlo   TikTok:   / elektrotechnikpodcast   Spotify: https://open.spotify.com/show/4GCYLDi... iTunes: https://podcasts.apple.com/us/podcast... #elektrotechnikpodcast Sources: Q1: Microchip – AN5956: Power Factor Correction in High-Power Applications - https://ww1.microchip.com/downloads/a... Q2: Texas Instruments - Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs - https://www.ti.com/lit/pdf/sluaau2 Q3: Yokogawa - Fundamentals of Electric Power Measurements - https://cdn.tmi.yokogawa.com/1/8377/f... Q4: Power Factor Correction in Power Conversion Applications Using the dsPIC® DSC https://ww1.microchip.com/downloads/e... Q5: Texas Instruments - UC3854 Controlled Power Factor Correction Circuit Design - https://www.ti.com/lit/pdf/slua144 Q6: onsemi – NCP1608 Critical Conduction Mode PFC Controller Datasheet – https://www.onsemi.com/download/data-...