標題: | 800V Ultra-High-Voltage Start-up Mechanism for Pre-regulator in Power Factor Correction (PFC) Controller |
作者: | Chen, Chi-Lin Tsai, Jen-Chieh Chen, Yi-Ting Ni, Chia-Lung Chen, Chun-Yen Chen, Ke-Horng 電控工程研究所 Institute of Electrical and Control Engineering |
關鍵字: | power factor correction (PFC);zero current detection (ZCD);ultra-high-voltage (UHV) |
公開日期: | 2011 |
摘要: | The on-chip 800V ultra-high-voltage (UHV) start-up mechanism was introduced in this paper. Using the UHV start-up mechanism can minimize the current leakage at the AC input and remove the need of external start-up resistor and capacitor. As a result, the standby current can be decreased to improve the efficiency of AC-DC systems. Furthermore, the zero current detection (ZCD) circuit was used here to ensure the work of the pre-regulator. An inductance coil will detect the primary inductance current and reflect the voltage, which is detected by ZCD circuit to provide the energy to the pre-regulator. The test circuit fabricated in TSMC 800V UHV process can show the highly-integrated PFC controller. Experimental results demonstrate low THD of 8%, which results in high PF of 99%. Certainly, high efficiency of 95% can be ensured at the output power of 50W. |
URI: | http://hdl.handle.net/11536/14574 |
ISBN: | 978-1-61284-857-0 |
ISSN: | 1548-3746 |
期刊: | 2011 IEEE 54TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) |
顯示於類別: | 會議論文 |