PRINTED CIRCUIT BOARD

PROBLEM TO BE SOLVED: To provide a printed circuit board where noise elimination action is obtained without increasing the number of components on the board, that is, without extending the board, and where the number of components can be reduced. SOLUTION: A noise countermeasure multi-layered board...

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Bibliographic Details
Main Authors TAKATANI MINORU, UMEMURA TETSUYA
Format Patent
LanguageEnglish
Published 18.05.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
INDUCTANCES
MAGNETS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
RESONATORS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:PROBLEM TO BE SOLVED: To provide a printed circuit board where noise elimination action is obtained without increasing the number of components on the board, that is, without extending the board, and where the number of components can be reduced. SOLUTION: A noise countermeasure multi-layered board 3 is mounted on a printed circuit board 1. The noise countermeasure multi-layered board 3 has a plurality of connectors 4a-4b that are respectively connected to a plurality of connectors 2a-2d on the printed circuit board 1 via respective flexible cables or flat cables 5a-5d. A filter to eliminate noise on a line connected via the connector 4a is built in the noise countermeasure multi-layered board 3. Noise elimination elements are integrated on the noise countermeasure multi-layered board 3.
Bibliography:Application Number: JP19990314622