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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Shafik, Z.M. Masoud, M.I. Fletcher, J.E. Finney, S.J. Williams, B.W. |
| Copyright Year | 2010 |
| Description | Author affiliation: Electrical and Electronic Engineering Dep., University of Strathclyde, Glasgow, UK (Shafik, Z.M.; Masoud, M.I.; Fletcher, J.E.; Finney, S.J.; Williams, B.W.) |
| Abstract | This paper presents techniques for loss minimization in ultra-high current low-voltage power supplies. The use of synchronous rectification using MOSFETs offers the advantage of reducing the conduction losses significantly compared to conventional rectification, with the possibility of achieving almost zero conduction losses through parallel connection. The design considerations for paralleling MOSFETs are briefly discussed, as paralleling is required for satisfying the high current requirements. Moreover, cryogenic operation of MOSFETs offers further reduction of the conduction losses. MOSFETs with various ratings are tested to evaluate the reduction in the on-resistance at liquid nitrogen temperature compared to the normal operating temperature. An estimate for the rectifier power losses including the cooling power is compared in order to show if it is advantageous for this specific application. |
| Starting Page | 1 |
| Ending Page | 7 |
| File Size | 5111618 |
| Page Count | 7 |
| File Format | |
| ISBN | 9781424468232 |
| e-ISBN | 9780947649449 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-09-01 |
| Publisher Place | United Kingdom |
| Access Restriction | Subscribed |
| Rights Holder | The University of Strathclyde |
| Subject Keyword | Temperature Power supplies Cooling Current supplies Nitrogen MOSFETs Parallel Operation of MOSFETs Cryogenic operation Low voltage low-voltage high-current rectifiers Rectifiers Cryogenics Synchronous rectifiers Testing |
| Content Type | Text |
| Resource Type | Article |
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