POWER CONVERTER

PROBLEM TO BE SOLVED: To provide a power converter which has a heat sink which facilitates the reduction of inductance in a snubber circuit. SOLUTION: In portions defined by chain-dot lines on a heat sink 1, one GTO(gate turn-off thrystor) 3 and one snubber diode 4 are placed. Cooling water, supplie...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUMOTO HISAAKI, TAKAHASHI NOBUHIRO, OBE TOSHIHARU, NAKAJIMA AKIRA
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 BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a power converter which has a heat sink which facilitates the reduction of inductance in a snubber circuit. SOLUTION: In portions defined by chain-dot lines on a heat sink 1, one GTO(gate turn-off thrystor) 3 and one snubber diode 4 are placed. Cooling water, supplied through one of taps 5, flows through a flow path 2 to cool the GTO 3 and the snubber diode 4. In the region of DGTO, above which the GTO 3 is attached, and the region of DDS above which the snubber diode 4 is attached, the forward flow paths and the backward flow paths are alternately arranged, and the centers of the whirlpools of the flow path are approximately aligned with the respective attachment centers of the semiconductor devices. Further, the distance between the centers of the GTO 3 and the snubber diode 4 is so designed as to be as small as possible within a range, sufficient enough to satisfy the insulation requirements.