DETECTING SHORTED DIODES
A method for detecting a shorted diode in a bridge rectifier (16) comprises: determining a phase-to-phase voltage (V ab , V bc , V ca ) between two phase inputs (20) of the bridge rectifier (16), wherein a phase input (20) is provided between the two series connected diodes (26) of the respective ph...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A method for detecting a shorted diode in a bridge rectifier (16) comprises: determining a phase-to-phase voltage (V ab , V bc , V ca ) between two phase inputs (20) of the bridge rectifier (16), wherein a phase input (20) is provided between the two series connected diodes (26) of the respective phase; and indicating a shorted diode fault by determining whether the phase-to-phase voltage is zero for more than a commutation time (36) of the bridge rectifier (16). |
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