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Gate-drive circuit for zero-voltage-switching half-and full-bridge converters
- Source :
- IEEE Transactions on Industry Applications. Sept-Oct, 2002, Vol. 38 Issue 5, p1380, 9 p.
- Publication Year :
- 2002
-
Abstract
- Resonant techniques like zero-voltage switching (ZVS) and zero-current switching (ZCS) are widely applied to raise the switching frequency and efficiency of converters. An important subclass of converters using resonant techniques is formed by ZVS half- and full-bridge converters. While different varieties of this subclass of converters have been reported, the gate-drive circuit is seldom described. In this paper, a new gate-drive circuit applicable in ZVS half- and full-bridge converters is proposed. The circuit shows excellent features such as transformer isolation, no ringing of the gate--source voltage of the switches, programmable dead time, no active components besides one low-side driver, insensitivity to component value variation, negative gate-source voltage at switch-off, and low drive power. Moreover, the circuit can be used in variable-frequency applications. The theoretical results obtained are verified by experiments. Index Terms--Full-bridge converter, gate-drive circuit, half-bridge converter, zero-voltage switching.
Details
- ISSN :
- 00939994
- Volume :
- 38
- Issue :
- 5
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.92806205