STEP-UP SWITCHING POWER SOURCE UNIT

PROBLEM TO BE SOLVED: To provide a step-up switching power source unit capable of reducing a recovery current and detecting a current corresponding to a load without being affected by a resonance current. SOLUTION: A first magnetic element 2 and a first diode 3 are inserted in series in a power tran...

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Bibliographische Detailangaben
1. Verfasser:	HATTA SHOJI
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 step-up switching power source unit capable of reducing a recovery current and detecting a current corresponding to a load without being affected by a resonance current. SOLUTION: A first magnetic element 2 and a first diode 3 are inserted in series in a power transmission line. A switching means 7 is connected with a part between the power transmission lines, and a stepped-up DC voltage V0 is obtained. When the switching means 7 is closed, the first diode 3 is arranged, and a second magnetic element 6 is arranged in the path of a recovery current flowing in the switching means 7. A second capacitor 8 which is charged in the open state of the switching means 7 is arranged in parallel with the switching means 7. When the switching means 7 is closed, a first resonance circuit containing the second magnetic element 6, the switching means 7 and the second capacitor 8 is constituted. A difference signal of the same phase components of a current flowing in the switching means 7 and a current flowing in the second capacitor 8 is detected by a first current detecting means 13.