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Quantification of switching loss contributions in synchronous rectifier applications
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| Author(s) |
T. Tolle; T. Duerbaum; R. Elferich; T. Lopez |
| Abstract |
For the Synchronous Buck
converter used in VRM applications, one
major contributor to switching losses is
reverse recovery. These losses however cannot
directly be measured because capacitive
current and several other phenomena
superimpose the mere reverse recovery. The
paper describes how to calculate the capacitive
part of the drain current and how to de-embed
the channel current out of the total drain
current. This can show the size of Qrr and
reveal effects such as gate bouncing and
avalanche breakdown. |
| Download |
| Filename: | EPE2003-PP0786 - Tolle |
| Filesize: | 665.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-23 by Unknown |
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