Abstract
This paper proposes a semi-digital synchronized-OFF voltage-mode Master-Made-Modulation (SFVM-M3) control scheme for a two-phase interleaved CCM/DCM transient-mode (TM) boost PFC converter. Synchronized-OFF operation can maintain the zero-current turn-on for both Master unit and Slave unit, whatever the mismatched inductances and synchronized signal. However, there is an existed current divergence issue in the boost inductor of the Slave unit by using conventional SFVM control. The SFVM-M3 is proposed to resolve the problem by applying the M3 signal, which can eliminate the phase error between Master unit and Slave unit cycle-by-cycle. The proposed scheme is implemented by a semi-digital controller in this paper, which the synchronized-OFF signal is generated by a fast analog circuit, and the SFVM-M3 control algorithm is designed in a digital signal processor dsPIC33FJ16GS504. The experimental results are given to verify the feasibility of the proposed semi-digital control scheme.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.