A comparison between hysteretic and fixed frequency boost converters used for power factor correction

A hysteretic controlled boost power converter is compared to a fixed frequency boost converter. The decision of which circuit to be used in electronic products is often based upon cost, size, heat rise, availability of components, and complexity of the design. The advantages and disadvantages of the hysteretic control and fixed frequency boost converter using 400 W as a load operating from 90 VAC to 270 VAC are providing 450 V to the output electrolytic capacitor are presented.<
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