Title :
Simple Bridge-Type AC/DC Converters with Natural Input-Current-Shaper
Author :
Liu, Hsing-Fu ; Wu, Chih-Yu ; Sun, Chin ; Chang, Lon-Kou
Author_Institution :
Macroblock, Inc., Hsingchu
Abstract :
This paper presents a new design for bridge-type AC/DC converters with natural input current shaper. They have a fast output voltage regulation in full range input (85V~265 V/AC). An additional winding in main transformer can naturally modify a line current. Further, the additional winding reduces an input inductance, so the weight and size of magnetic material are significantly reduced. The total harmonic distortion (THD) of the line current complies with IEC61000-3-2 class D. Furthermore, the proposed converters use current sensorless control and they can employ a conventional voltage-fed controller to simply the control circuit
Keywords :
AC-DC power convertors; electric current control; harmonic distortion; magnetic materials; power conversion harmonics; transformer windings; voltage control; IEC61000-3-2 class D; THD; bridge-type AC-DC converters; current sensorless control; inductance reduction; line current; magnetic material; natural input-current-shaper; switching mode power supplies; total harmonic distortion; transformer winding; voltage regulation; voltage-fed controller; DC-DC power converters; IEC 61000-3-2; Power Factor Correction; Switching Mode Power Supplies;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778018
