New self-driven synchronous rectification system for converters with a symmetrically driven transformer

被引：15

作者：

Fernández, A ^{[1
]}

Sebastián, J ^{[1
]}

Hernando, MM ^{[1
]}

Villegas, PJ ^{[1
]}

García, J ^{[1
]}

机构：

[1] Univ Oviedo, Grp Elect Ind, Gijon 33204, Spain

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2005年 / 41卷 / 05期

关键词：

low output voltage; power supplies; self-driven synchronous rectification (SDSR);

D O I：

10.1109/TIA.2005.853385

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Synchronous rectification (SR) is mandatory to achieve good efficiencies with low output voltages. If the transformer is driven asymmetrically without dead times, self-driven SR (SDSR) is a very interesting solution. However, if the transformer is driven symmetrically, the synchronous rectifiers are off during the dead times and, as a consequence, the efficiency is lowered. This paper deals with a new SDSR system that keeps the rectifiers on even during the dead times. Thus, it can be used to obtain very low output voltages, such as 1.5 V, with quite good efficiency. Moreover, it can be used over a wide input voltage range. The new system is implemented in a prototype in order to measure the real efficiency that can be achieved with the proposed scheme.

引用

页码：1307 / 1315

页数：9

共 11 条

[1] A new driving scheme for synchronous rectifiers:: Single winding self-driven synchronous rectification [J].

Alou, P ;

Cobos, JA ;

García, O ;

Prieto, R ;

Uceda, J .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2001, 16 (06) :803-811

[2] Design of a low output voltage DC/DC converter for Telecom application with a new scheme for self-driven synchronous rectification [J].

Alou, P ;

Cobos, JA ;

Uceda, J ;

Rascón, M ;

de la Cruz, E .

APEC'99: FOURTEENTH ANNUAL APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, CONFERENCE PROCEEDINGS, VOLS 1 & 2, 1999, :866-872

[3]

BLAKE C, 1994, APPL POWER ELECT CO, P17, DOI 10.1109/APEC.1994.316424

[4]

COBOS JA, 1993, INTELEC 93 - 15TH INTERNATIONAL TELECOMMUNICATIONS ENERGY CONFERENCE, VOL 2, P200

[5]

COBOS JA, 1994, IEEE POWER ELECTRON, P902, DOI 10.1109/PESC.1994.373786

[6]

FERRERES A, 2001, P IEEE PESC 01, V2, P678

[7]

Jovanovic M. M., 1993, PCIM '93. Power Conversion and Intelligent Motion USA. Official Proceedings of the Twenty-Seventh International Power Conversion Conference, P340

[8]

Linera FF, 1997, APPL POWER ELECT CO, P977, DOI 10.1109/APEC.1997.575766

[9]

LINERA FF, 1998, P IEEE APEC 98, V1, P363

[10]

MURAKAMI N, 1993, APPL POWER ELECT CO, P463, DOI 10.1109/APEC.1993.290702

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