Design of high efficiency phase‑shift full‑bridge converter with minimized power loss on primary‑side clamp diodes

Young-Eun Kwon; Young-Woo Ju; Da-un Kim; Chong-Eun Kim

Design of high efficiency phase‑shift full‑bridge converter with minimized power loss on primary‑side clamp diodes

Vol. 23, No. 1, pp. 79-88, Jan. 2023

10.1007/s43236-022-00554-3

Phase-Shift Full-Bridge

Clamp diode

Power loss

Parasitic capacitance

Abstract

Phase-shift full-bridge (PSFB) converter is a full-bridge converter that adopts a phase-shift control scheme to achieve zerovoltage- switching (ZVS). Owing to its low voltage/current stress, it is popular for high efficiency and high power density applications. Practically, to reduce the high peak voltage of secondary rectifiers, its configuration contains clamp diodes on the primary side. However, this circuit configuration causes additional power loss due to the current flowing through the clamp diodes. In this paper, an additional capacitor applied to PSFB converter is proposed to reduce unnecessary power loss, and its validity is proved experimentally by an 800 W power supply.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

Y. Kwon, Y. Ju, D. Kim, C. Kim, "Design of high efficiency phase‑shift full‑bridge converter with minimized power loss on primary‑side clamp diodes," Journal of Power Electronics, vol. 23, no. 1, pp. 79-88, 2023. DOI: 10.1007/s43236-022-00554-3.

[ACM Style]

Young-Eun Kwon, Young-Woo Ju, Da-un Kim, and Chong-Eun Kim. 2023. Design of high efficiency phase‑shift full‑bridge converter with minimized power loss on primary‑side clamp diodes. Journal of Power Electronics, 23, 1, (2023), 79-88. DOI: 10.1007/s43236-022-00554-3.