TY - GEN
T1 - A novel constant voltage primary-side regulation topology to eliminate auxiliary winding
AU - Bai, Yongjiang
AU - Chen, Wenjie
AU - Yang, Xiaoyu
AU - Yang, Xu
AU - Xu, Guangzhao
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016
Y1 - 2016
N2 - Primary-side regulation (PSR) scheme is widely used in low-cost and low power applications such as cell phone charger and LED lighting. Generally, an auxiliary winding in the conventional flyback converter is used for both power supplier and feedback sensing. With the increase of labor cost, the transformer needs to be produced automatically. So the transformer architecture should be designed as simple as possible to meet automatic production requirement. In this paper, a novel constant voltage primary-side regulator topology is proposed to eliminate the auxiliary winding. On one hand, the controller is built in self-powered function. On the other hand, a dedicated scheme is used to guarantee the accurate output voltage sensing. Meanwhile, new technology is presented in detail to obtain better EMI performance. To verify the efficiency of the proposed constant voltage primary-side regulator topology, a dedicated constant voltage regulator integrated in a power IC is fabricated. The experimental results demonstrated that the prototype based on the proposed integrated chip has excellent regulation and EMI performance without auxiliary winding of the transformer.
AB - Primary-side regulation (PSR) scheme is widely used in low-cost and low power applications such as cell phone charger and LED lighting. Generally, an auxiliary winding in the conventional flyback converter is used for both power supplier and feedback sensing. With the increase of labor cost, the transformer needs to be produced automatically. So the transformer architecture should be designed as simple as possible to meet automatic production requirement. In this paper, a novel constant voltage primary-side regulator topology is proposed to eliminate the auxiliary winding. On one hand, the controller is built in self-powered function. On the other hand, a dedicated scheme is used to guarantee the accurate output voltage sensing. Meanwhile, new technology is presented in detail to obtain better EMI performance. To verify the efficiency of the proposed constant voltage primary-side regulator topology, a dedicated constant voltage regulator integrated in a power IC is fabricated. The experimental results demonstrated that the prototype based on the proposed integrated chip has excellent regulation and EMI performance without auxiliary winding of the transformer.
KW - Primary-side Regulation
KW - formatting
KW - insert
KW - style
KW - styling
UR - https://www.scopus.com/pages/publications/85015435607
U2 - 10.1109/ECCE.2016.7854728
DO - 10.1109/ECCE.2016.7854728
M3 - 会议稿件
AN - SCOPUS:85015435607
T3 - ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
BT - ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
Y2 - 18 September 2016 through 22 September 2016
ER -