This document details the IRAC1150-300W Demo Board featuring the IR1150S Power Factor Correction control IC. It includes a description of the application in addition to schematics, PCB layout, bill of material, design process, and test setup and results. The IRAC1150-300W Demo Board is designed to demonstrate the performance of the IR1150S control IC in a 300W continuous conduction mode boost converter for power factor correction. The board is designed for universal AC input and 387 V DC output.
The IR1150S is designed for use in continuous conduction mode boost converter applications for power factor correction and harmonic current reduction. The controller allows for near unity power factor and exceeds all requirements of IEC1000-3-2 (EN61000-3-2) for harmonic distortion.
The IC utilizes trailing edge modulation and peak current mode control to force the input current to follow the sinusoidal input voltage in both shape and phase. The IC incorporates numerous protection features for robust operation and provides a high performance solution while minimizing external components, design time, and printed circuit board real estate, all in an 8 pin SOIC package.
The IR1150S provides a cost effective solution for lower power designs, which are typically dominated by discontinuous mode solutions, as well as high power designs typical of the 16 pin solutions requiring more external components and valuable PCB space.
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