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)
Appears in Collections:Conferences Paper