標題: | Digital Voltage Control of Boost CRM PFC AC/DC Converters with TRIAC Phase Control Dimmer |
作者: | Lin, Chih-Wei Tzou, Ying-Yu 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | Power-factor-correction (PFC);critical conduction mode (CRM);phase dimming control (TRIAC);digital control;AC/DC converter;incandescent lamp |
公開日期: | 2012 |
摘要: | This paper presents a digital voltage control scheme for boost critical conduction mode (CRM) power-factor-correction (PFC) AC/DC converters with TRIAC phase control dimmer to use in the lighting equipment ex. LED or fluorescent lamp. The TRIAC is a standard type of dimmer and work fine with resistive load such as ordinary Tungsten filament light bulb (incandescent lamp), however, for non-resistive lighting sources, a well-designed AC-DC converter must be designed to provide good power quality as well as wide linear non-flickering dimming control range. A variable PFC output voltage modulation method is proposed to enhance the dimming control range. The TRIAC dimmer will cause switching oscillations due to the PFC input filter, a damper circuit is designed to minimize this effect. The proposed control scheme has been verified by using simulation software PSIM in applications to a 50 W prototype of boost CRM PFC AC/DC converter with TRIAC phase control dimmer. Simulation and experimental results are given to illustrate the feasibility of the proposed control scheme. |
URI: | http://hdl.handle.net/11536/23139 |
ISBN: | 978-1-4673-2868-5 |
期刊: | 2012 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) |
顯示於類別: | 會議論文 |