Abstract

This paper presents a flexible and cost-effective design for AC/DC converter with input current shaper and fast output voltage regulation in wide range input application. These single-stage AC/DC converters are based on a boost type input-current-shaper (ICS). An additional winding in main transformer replaces most part of a bulk inductor in a boost type ICS, so the weight and size of magnetic material are significantly reduced. The total harmonic distortion (THD) of a line current complies with IEC61000-3-2. A magnetic feedback method is employed in the new topologies. Therefore, the voltage across bulk capacitor can be hold under 450 V by tuning transformer windings ratio even though the converter operates in wide range input voltage (90 V/spl sim/265 V/AC). A fast output voltage regulation is achieved by employing simple voltage mode control or conventional peak-current mode control.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.