Paper Info
Title
Multi-input multi-phase transformerless large voltage conversion ratio DC/DC converter
Abstract
This paper proposes a two-input transformerless DC-DC converter. The proposed converter has large voltage conversion ratio with low-voltage and current stress on semiconductors and low input current ripple. It can transfer energy as two-phase converter with three and four input voltage sources to increase the availability of the input voltage of the converter. Despite the capability of extending the number of the input sources up to four, the range of operating duty cycle for the switches and the voltage conversion ratio are remained the same as the values for two-input topology of the proposed converter. By increasing diode-capacitor (D-C) cells in upper and lower modules, not only the amount of transferred energy will be increased, but also the voltage stress on semiconductors would be decreased. In this paper, theoretical analysis for continuous current mode (CCM), analysis under discontinuous current mode (DCM), voltage gain and voltages and currents of all of the elements are calculated. Finally, the performance of the proposed converter is confirmed by implemented prototype which converts two 40-V input voltages to output voltage of 600 V with the power of 400 W.
Year
DOI
Venue
2021
10.1002/cta.3117
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS
Keywords
DocType
Volume
high-voltage gain, low-voltage stress on semiconductors, non-isolated converter, two phase dc-dc converter
Journal
49
Issue
ISSN
Citations 
12
0098-9886
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Zahra Saadatizadeh174.22
Pedram Chavoshipour Heris201.01
Mehran Sabahi36717.96
Xiaodong Liang400.68