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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kai Yao Xinbo Ruan Xiaojing Mao Zhihng Ye |
| Copyright Year | 2010 |
| Description | Author affiliation: Aero-Power Sci-Tech Center, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016 China (Kai Yao; Xinbo Ruan; Xiaojing Mao) || Lite-on Technology Corp. Nanjing, Jiangsu 210019 China (Zhihng Ye) |
| Abstract | Discontinuous current mode (DCM) boost power factor correction (PFC) converter features zero-current turn-on for the switch, no reverse recovery in diode and constant frequency operation, however, the input power factor (PF) is relatively low when the duty cycle is constant in a half line cycle. This paper derives the expressions of the input current and PF of DCM boost PFC converter, and based on which, a variable duty cycle control is proposed so as to improve the PF to nearly unity in the whole input voltage range. A method of fitting the duty cycle is further proposed for simplifying the circuit implementation. Besides a higher PF, the proposed variable duty cycle control achieves a lower output voltage ripple and a higher efficiency over the constant duty cycle control. The experimental results from a 120W universal input prototype are given to verify the effectiveness of the proposed method. |
| Starting Page | 1405 |
| Ending Page | 1412 |
| File Size | 1631779 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781424447824 |
| ISSN | 10482334 |
| DOI | 10.1109/APEC.2010.5433413 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-02-21 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Switches Voltage control Inductors Power harmonic filters Switching converters Circuits Diodes Switching frequency Electromagnetic interference Power factor correction |
| Content Type | Text |
| Resource Type | Article |
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