Acronym · Power & Discretes
PFC (Power Factor Correction)
An input stage that shapes the current drawn from the AC line to follow the voltage sinusoid, so the load appears resistive. Active PFC uses a switching converter with current-loop control rather than passive filtering.
- Also known as
- Active PFC
- Type
- Acronym
- Domain
- Power & Discretes, Power conversion topologies
Notes
Required by IEC 61000-3-2 for most mains equipment above 75 W, which is why active PFC is near universal.
Related terms
- Totem pole PFC
- Boost converter
- Bridge rectifier
- THD
Part of the Power & Discretes glossary, with every term in the topic and the lifecycles, tools and standards that use them.
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