Load Adaptive Gate Driving Method for High Efficiency Under Light-Load Conditions

被引：16

作者：

Kim, Jae-Hyun ^{[1
]}

Kim, Jae-Kuk ^{[2
]}

Lee, Jae-Bum ^{[1
]}

Moon, Gun-Woo ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Coll Informat Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea

[2] Samsung Electromech Co Ltd, Suwon 443743, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2014年 / 61卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Gate driving method; light-load efficiency; server power supply; standby converter; FULL-BRIDGE CONVERTER; ENERGY RECOVERY; FREQUENCY; CIRCUIT; CONTROLLER; DRIVER;

D O I：

10.1109/TIE.2013.2290777

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a new gate driving method to improve light-load efficiency is proposed for the power conversion system with a standby converter. The proposed method reduces the gate driving voltage of power MOSFETs and the operating voltage of controller ICs under light-load conditions by adjusting the auxiliary output voltage of the standby converter. Therefore, the gate driving loss on MOSFETs and the loss on controller ICs are significantly reduced without the degradation of performance in the main power stage. To confirm the validity of this paper, the dc/dc server power supply with an input of 48 V, an output of 12 V/60 A for the dc/dc stage, and an output of 5 V/3 A for the standby stage is experimented.

引用

页码：4674 / 4679

页数：6

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