Alarm circuit for detecting abnormal closing of normally closed end of relay

The utility model provides an alarm circuit for detecting abnormal closing of a normally closed end of a relay, which comprises a detection circuit and a warning lamp, the detection circuit is connected with the warning lamp, the detection circuit is connected with an automobile load, the detection...

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Bibliographische Detailangaben
Hauptverfasser:	WANG DARAN, ZHOU YANJIANG, DU JUAN, ZHANG YONGWEI, YANG WANJIE, ZHOU JUNQIANG, LIU FENGJUN, LI JING, QI DINGCHUN, ZHANG JIANGYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	The utility model provides an alarm circuit for detecting abnormal closing of a normally closed end of a relay, which comprises a detection circuit and a warning lamp, the detection circuit is connected with the warning lamp, the detection circuit is connected with an automobile load, the detection circuit comprises a relay K1 and a triode group, the relay K1 is connected with the triode group, one end of the warning lamp is connected with the triode group, and the other end of the warning lamp is connected with the automobile load. The other end of the warning lamp is grounded, the triode group is connected with the power supply, one end of the relay K1 is connected with the power supply, the other end of the relay K1 is grounded, and the other two ends of the relay K1 are connected with an automobile load through the connector. According to the utility model, the two PNP triodes are connected in series to detect the abnormity of the normally closed end of the relay, redundancy judgment is added, a loop is p