Abstract

With the increasing number of population, people are increasingly dependent on electricity. In recent years, more and more public transportations like bus, taxi take the mode of pure electric. The function of rectifier is to transform the AC current into DC current, which is a significant research direction in electrical industry, especially in power electronic technology. In our nation, the national grid supplies 220V 50Hz AC to residence, it is a voltage pattern that varies periodically. Due to the lower loss of power during long-distance transmission, it has become the basic mode of power transmission and supply in the world. In usual production and our daily life, we frequently need DC (such as: mobile phones, flashlights, computers, charging piles for electric vehicles, etc.), so rectifier has become a heated research part. At present, more and more researches are based on power electronic technology, design all kinds of rectifier circuit by using the between conductor and insulator property of semiconductors. This essay provides an overview of single-phase rectifier circuits (including half-wave rectifier, full-wave rectifier, and bridge rectifier) and passive power factor correction.

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