Z SOURCE INVERTER CIRCUIT

PROBLEM TO BE SOLVED: To provide a Z source inverter circuit which is applicable to a capacitive or inductive load and in which control of a switching element is made simple without using a relay switch.SOLUTION: A Z source inverter circuit 10 comprises: a Z source circuit 11 formed from first and s...

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Hauptverfasser:	NOMURA HIDEJI, SATO MOTOKI
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a Z source inverter circuit which is applicable to a capacitive or inductive load and in which control of a switching element is made simple without using a relay switch.SOLUTION: A Z source inverter circuit 10 comprises: a Z source circuit 11 formed from first and second inductors 11L1 and 11L2 and first and second capacitors 11C1 and 11C2; and an inverter circuit 20 in which voltage of a storage battery 12 inputted via the Z source circuit 11 is converted into an AC voltage and supplied to a load. The inverter circuit 20 includes a plurality of upper arms and lower arms provided with first switching elements 21Qa-26Qa. Second switching elements 21Qb-26Qb whose conduction direction is opposite to that of the first switching elements 21Qa-26Qa, are connected to the first switching elements in series, and diodes 21Db-26Db having the same conduction direction as that of the first switching elements are connected to the second switching elements 21Qb-26Qb in parallel.