Input Current Distortion for Minimization of Bulk Capacitor

摘要

Controlled input current distortion that reduces voltage ripple on a power factor corrected output is shown. Several methods are presented to reduce this voltage ripple so that the typical capacitor used in off line converters can be reduced in size or stress without affecting power factor significantly.

主权项

1. A control method for a power factor corrected converter circuit (PFC) that includes a bulk capacitor, comprising distorting an input current shape to the PFC to reduce output RMS current into the bulk capacitor.