POWER SUPPLY

PROBLEM TO BE SOLVED: To reduce the cost of a power supply and enhance the reliability of its operation. SOLUTION: Components comprising a power circuit are mounted on a single printed board 11. The printed board 11 is housed in a body 13 of a case made of metal. A notch 12 is formed on the printed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIDO HIROSHI, YUUFUKU AKIRA, MAKIMURA SHINJI
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 HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 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 reduce the cost of a power supply and enhance the reliability of its operation. SOLUTION: Components comprising a power circuit are mounted on a single printed board 11. The printed board 11 is housed in a body 13 of a case made of metal. A notch 12 is formed on the printed board 11, and a shielding plate 14 is erected on the body 13 at a position corresponding to the notch 12. Those component, other than a first capacitor C1 comprising a first direct-current power circuit and components, other than a second capacitor C2 comprising a second direct-current power circuit, are mounted on the printed board 11 in a first region 11a which is spatially isolated by the notch 12. A high-frequency circuit for supplying high-frequency power to a load and a drive circuit for driving a first switching element Q1 are mounted on the printed board 11 in a second region 11b. The distance between the first switching element Q1 and the first capacitor C1 is made shorter than the distance between the first switching element Q1 and the second capacitor C2 .