Abstract
The objective of this paper is to propose an inductorless non-isolated step-down converter. The proposed converter is composed of multiple charging pump DC-DC converters with interleaving operation. Based on the characteristic of charging pump capacitor, the presented converter does not require an inductor and can obtain the step-down output voltage. Advantages of the proposed converter include: inductorless power conversion, control circuit simplicity, low voltage stress, low input current ripple, low output voltage ripple, and fault-tolerant operation for each DC-DC converter module. Based on the circuit analysis, the power loss can be evaluated with the capacitance of bridge capacitor and switching frequency. Also, with the interleaved operation between the charging pump converters, the current ripple of the input can be reduced without the need of input inductor. The computer simulations and hardware experimental results are shown to verify the performance of the proposed inductorless step-down converter. The peak efficiency from an input voltage 100 V, output voltage 50 V, and output power 75W prototype is around 97.2%.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
