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Power MOSFET failures in short circuit conditions in a series generator for induction heating
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| Author(s) |
J. Jordán; E. J. Dede; V. Esteve; C. Cases |
| Abstract |
Series generator is basically a voltage-fed inverter with a load formed by L-C series (L is the
induction heating coil). Voltage-fed MOSFET inverters are structures for high frequency induction heating
applications. In practical working conditions, short-circuit of the coil can damage the MOSFET of the
inverter if no special precautions are taken. This communication tries to determine which reasons originate
the failures of power MOSFET in a series generator. The failures take place only in case of short circuit of
heating coil.
We explain how the inverter works and the short circuit process. We reproduce switching conditions
in laboratory for study the switching behaviour of internal body diode of MOSFET. We measure
experimental failures of internal MOSFET body diode in short circuit conditions. |
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| Filename: | EPE2003-PP0478 - Jordan |
| Filesize: | 519.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2003-10-16 by Unknown |
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