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Power Factor Correction using IR1153 Fixed Frequency CCM PFC IC

Power Factor Correction using IR1153 Fixed Frequency CCM PFC IC

The IR1153 IC is a fixed 22.2kHz frequency PFC IC designed to operate in continuous conduction mode Boost converters with average current mode control. The IC is packed with an impressive array of advanced features such as programmable soft-start, micro-power startup current, user initiated micro-power Sleep mode for compliance with stand-by energy standards and ultra low bias currents for sensing pins. The fixed internal oscillator ensures stable operation at 22.2kHz switching frequency with very low gate jitter thus eliminating audible noise in PFC magnetics. In addition, the IC offers input-line sensed brown-out protection (BOP), dedicated over voltage protection, cycle-by-cycle peak current limit, open loop protection (OLP) and VCC under voltage lock-out (UVLO). All these features are offered in a compact 8-pin package making IR1153 the most feature-intensive IC for PFC applications. This application note provides an overview of the IR1153 and demonstrates the design of a universal input 2000W AC-DC Boost PFC Converter.

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