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Power Factor Correction Print
March 2009
Power factor correction (PFC) is a technique of counteracting the undesirable effects of electric loads that create a power factor that is less than 1.

Active PFC is a power electronic system that controls the amount of power drawn by a load in order to obtain a Power factor as close as possible to unity.

Passive PFC uses a capacitive filter at the AC input to correct poor power factor.

Examples of PFC Effectiveness:
PFC (0) = 0.55
PFC (P) = 0.75
PFC (A) = 0.95 ~ 0.99

The effect of PFC is to reduce wastage of energy.

Compucon Systems have been using Power Supply Units with Active PFC in most system models since 2007 and across the board since 1 March 2009.