Minimization of passive components in multi-level flying capacitor DC-DC converter

Ponniran, Asmarashid and Koji, Orikawa and Jun-ichi, Itoh (2016) Minimization of passive components in multi-level flying capacitor DC-DC converter. IEEJ Journal of Industry Applications, 5 (1). pp. 10-11.

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In this paper, we propose a minimization design method of the inductance and the capacitance of the flying capacitors for a multi-level flying capacitor DC-DC boost converter (FCBC). The effectiveness of the small capacitances of the flying capacitors in three-level and five-level FCBCs is investigated. We experimentally confirmed that the distortion of the voltage across the input source and the input inductor is drastically reduced by increasing the number of levels. Thus, a small inductance value and a small capacitance value can be used for the input inductor and the flying capacitors, respectively, in an n-level FCBC. Therefore, the minimization of passive components in multi-level FCBCs is achieved. Moreover, the achieved maximum efficiencies of the designed three-level and five-level FCBCs are 98.5% and 97.8%, repectively, at an output power of 1 kW.

Item Type:Article
Uncontrolled Keywords:flying capacitor boost converter; inductor; inductor current ripple; flying capacitor; flying capacitor voltage ripple
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions:Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
ID Code:8492
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:05 Jun 2017 08:56
Last Modified:05 Jun 2017 08:56

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