FAULT DETECTION DEVICE AND METHOD THEREFOR

A fault detection device 1 for detecting whether the connection state is normal or abnormal for control lines 119a, 119b, which electrically connect between auxiliary terminals 105a, 106a, 105b, 106b for controlling paths for main terminals 103a, 104a, 103b, 104b of semiconductor switching elements...

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Bibliographische Detailangaben
1. Verfasser:	KOUNO, Yasuhiko
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A fault detection device 1 for detecting whether the connection state is normal or abnormal for control lines 119a, 119b, which electrically connect between auxiliary terminals 105a, 106a, 105b, 106b for controlling paths for main terminals 103a, 104a, 103b, 104b of semiconductor switching elements 101a, 101b and control units 110a, 110b for controlling driving of the semiconductor switching elements 101a, 101b, wherein, when the rate of change of an output voltage output from the control units 110a, 110b to the control lines 119a, 119b is greater than a prescribed value, it is determined that a connection abnormality has occurred in the control lines 119a, 119b, and an abnormality detection signal is output.