Power factor correction principle and related IC

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Power factor correction principle and related IC [Copy link]

Overview

In recent years, with the development of electronic technology, the demand for various office automation equipment, household appliances, and computers has increased year by year. These devices all require a power supply part that converts the mains power into DC. During this conversion process, a large amount of harmonic current will be generated, causing the power system to be polluted. As a restriction standard, IEC has issued IEC1000-3-2; European, American and Japanese countries have also promulgated and implemented their own standards. Therefore, the suppression of harmonic current and power factor correction are important topics for power supply designers.