A New Zero-Voltage-Switching Bridgeless PFC, Using an Active Clamp

Mehdi Ramezani; Ehsan Ghasedian; Seyed M. Madani

A New Zero-Voltage-Switching Bridgeless PFC, Using an Active Clamp

Mehdi Ramezani

Ehsan Ghasedian

Seyed M. Madani

Vol. 12, No. 5, pp. 723-730, Sep. 2012

10.6113/JPE.2012.12.5.723

Active clamp

Bridgeless PFC

PWM rectifier

Zero-voltage-switching (ZVS)

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Abstract

This paper presents a new ZVS single phase bridgeless (Power Factor Correction) PFC, using an active clamp to achieve zero-voltage-switching for all main switches and diodes. Since the presented PFC uses a bridgeless rectifier, most of the time, only two semiconductor components are in the main current path, instead of three in conventional single-switch configurations. This property significantly reduces the conduction losses,. Moreover, zero voltage switching removes switching loss of all main switches and diodes. Also, auxiliary switch turns on zero current condition. The presented converter needs just a simple non-isolated gate drive circuitry to drive all switches. The eight stages of each switching period and the design considerations and a control strategy are explained. Finally, the converter operation is verified by simulation and experimental results.

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Cite this article

[IEEE Style]

M. Ramezani, E. Ghasedian, S. M. Madani, "A New Zero-Voltage-Switching Bridgeless PFC, Using an Active Clamp," Journal of Power Electronics, vol. 12, no. 5, pp. 723-730, 2012. DOI: 10.6113/JPE.2012.12.5.723.

[ACM Style]

Mehdi Ramezani, Ehsan Ghasedian, and Seyed M. Madani. 2012. A New Zero-Voltage-Switching Bridgeless PFC, Using an Active Clamp. Journal of Power Electronics, 12, 5, (2012), 723-730. DOI: 10.6113/JPE.2012.12.5.723.