A high efficient boost converter with power factor correction

被引：16

作者：

Li, D ^{[1
]}

Ruan, XB ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nanjing 210016, Jiangsu, Peoples R China

来源：

PESC 04: 2004 IEEE 35TH ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6, CONFERENCE PROCEEDINGS | 2004年

关键词：

D O I：

10.1109/PESC.2004.1355674

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 [电气工程]; 0809 [电子科学与技术];

摘要：

Boost converter is widely used as active power factor correction (PFC) pre-regulator. Its input voltage range is universal (90-265V), and its output voltage is regulated at about 380V. At low line (90V) the switch's rms current is high, so the conduction loss of power switch MOSFET is large and the efficiency of whole converter is very low. This paper proposes a new control method that the output voltage varies with the input voltage change. Under this control the MOSFET's on-time is shortened, and the switch's rms current decreases, which reduces the conduction loss and increases the Boost converter efficiency. The distribution of power loss is analyzed by computing software (mathcad2000) and the realization of this special control method is given. A 1200W Boost power factor corrector with average current control is built up. In order to improve the diode's turn-off loss the performance of a 600V, 12A silicon carbide (SiC) Schottky diode is also experimentally evaluated. Measurements of overall efficiency and reverse recovery. behavior are compared between SiC diode and fast recovery diode.

引用

页码：1653 / 1657

页数：5