CONTROL DEVICE FOR LOAD CIRCUIT

Two semiconductor switches (Q1, Q2) are arranged in parallel in a load circuit for connecting a power source with a load. Further, the semiconductor switches (Q1, Q2) are controlled so as to be alternately tuned on and off. As a result, since a current flows through only either of the semiconductor...

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Bibliographische Detailangaben
Hauptverfasser:	UETA, Keisuke, NAKAMURA, Yoshihide, IKUTA, Yoshinori, MARUYAMA, Akinori
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:	Two semiconductor switches (Q1, Q2) are arranged in parallel in a load circuit for connecting a power source with a load. Further, the semiconductor switches (Q1, Q2) are controlled so as to be alternately tuned on and off. As a result, since a current flows through only either of the semiconductor switches (Q1, Q2), an offset error detected by current sensors (12, 22) includes only an offset error of either of the semiconductor switches, the detection of current with high accuracy can be accomplished. Therefore, when performing the control of shutting off the circuit to cope with the occurrence of an overcurrent flowing through the load, the shutoff control with high accuracy can be accomplished.