Update: 29 September, 2023
This application note describes a demonstration board based on the transition-mode PFC controller L6562A and presents the results of its bench demonstration. The board implements a 400 W, wide-range mains input PFC pre-conditioner suitable for ATX PSU, flat screen displays, etc. In order to allow the use of a low-cost device like the L6562A at this power level, usually prohibitive for this device, the chip is operated with fixed-off-time control. This allows continuous conduction mode operation, normally achievable with more expensive control chips and more complex control architectures.
File format: PDF
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MD5 Checksum: 76D9B537263526F7B13F9DA72D7A6305
Publication date: 06 August, 2012
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PDF Link: ST AN2755 Application note handbook PDF