Jul 31, 2026
In this episode, we break down what Power
Factor Correction (PFC) is actually doing inside an offline power
supply. We will explain why bridge-rectifier front ends create
distorted input current, how active boost PFC reshapes that
waveform, and what engineers need to know about conduction modes,
interleaving, EMI filters, and modern wide-bandgap topologies. It
also connects classic PFC design practice with newer
digital-control approaches in advanced energy systems.
RELATED SOLUTIONS:
Wurth Elektronik PFC Product
Family:
https://www.we-online.com/en/components/products/WE-PFC
LTSpice Libraries from Wurth
Elektronik:
https://www.we-online.com/en/support/design-tools/libraries/ltspice
1-Phase Line Filter Design
Application Guide (ANP015):
https://www.we-online.com/en/support/knowledge/application-notes?d=anp015-line-filter
Mains Filter Application
Guide:
https://www.we-online.com/en/components/productnavigator/mains-filter
Power Supply Product
Navigator:
https://www.we-online.com/en/components/productnavigator/power-supply
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