AN4250 Datasheet, PDF (1/15 Pages) Panasonic Semiconductor – Single Low Power Consumption Operational Amplifiers

AN4250
Application note
Fishbone diagram for power factor correction
Rosario Costanzo, Gianluca Messina, Antonino Gaito
Introduction
This report aims to show through a Fishbone diagram, all possible causes of failure of the
Power MOSFET mounted on a PFC.
This work is divided into 5 sections:
• The first one describes the power factor
• The second describes the Boost converter
• The third describes the PFC system
• The forth paragraph shows all critical conditions causing the failure of the Power MOSFET
and builds up the Fishbone diagram
• Last paragraph presents a specific Fishbone parallel configuration
March 2014
DocID024230 Rev 1
1/15
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