SNUBBER CIRCUIT AND POWER CONVERSION SYSTEM USING SAME

SNUBBER CIRCUIT AND POWER CONVERSION SYSTEM USING SAME

A snubber circuit configured to suppress loss to a low level and a power conversion system including the snubber circuit are provided. When a magnitude of a voltage between a pair of first voltage points (P11, P12) in a main circuit exceeds a first clamp value, a first clamp circuit (31) absorbs ele...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUSAMA, Fumito, HIGASHIYAMA, Koji
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 snubber circuit configured to suppress loss to a low level and a power conversion system including the snubber circuit are provided. When a magnitude of a voltage between a pair of first voltage points (P11, P12) in a main circuit exceeds a first clamp value, a first clamp circuit (31) absorbs electrical energy of the main circuit from the pair of first voltage points (P11, P12) to clamp the voltage to the first clamp value. When a magnitude of a voltage between a pair of second voltage points (P21, P22) in the main circuit falls below a second clamp value, a second clamp circuit (32) injects electrical energy to the main circuit (2) from the pair of second voltage points (P21, P22) to clamp the voltage to the second clamp value. A voltage conversion circuit (33) performs voltage conversion between a first clamp voltage (Vc1) defining a first clamp value and a second clamp voltage (Vc2) defining a second clamp value.