POWER FACTOR CORRECTION CIRCUIT FOR A BOOST CONVERTER
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United States of America Patent
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Apr 25, 2024
app pub date -
Oct 7, 2022
filing date -
Oct 7, 2022
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Abstract
A power factor correction circuit for a boost converter comprises a voltage converting means and a voltage-to-time converting means. The voltage converting means converts a supply voltage based on a time period of a turn-on duration Ton and a turn-off duration Toff of the boost converter into an output voltage. The voltage-to-time converting means generates the turn-on duration Ton based on the output voltage from the voltage converting means. The power factor correction circuit adjusts the turn-on duration Ton substantially in accordance with the following relationship:
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