Wurth Elektronik Digital Days

Presented by Alessandro Maggioni

Details

Date: February 23, 2022

Time: 5:00 AM - 5:45 AM MST

Language: English

Attendance: Online

Registration

Meeting Challenging Efficiency Standards With Bridgeless Totem Pole Power Factor Correction.

Registration Deadline: February 23, 2022

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The input bridge rectifier found in almost all AC-DC power supplies generates losses that present a challenge in achieving the highest possible efficiency. However, removing the diode bridge, PFC FET and boost diode in favor of a totem pole PFC solution enhances efficiency using active switches. The control of such circuits is complex. Often, a microcontroller is needed and associated code which presents a barrier to adoption for design teams where time is limited. onsemi NCP1680 mixed signal PFC controller is discussed in the article as it provides a code-less solution for totem-pole PFC.