ELECTRONIC CIRCUIT

PROBLEM TO BE SOLVED: To excellently decouple a power circuit and an integrated circuit from each other by using a transmission line type noise filter. SOLUTION: The power circuit 20 generates a source voltage to be supplied to a microprocessor 30 as the integrated circuit. The transmission line typ...

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Bibliographic Details
Main Author MITSUI KAZUAKI
Format Patent
LanguageEnglish
Published 19.04.2007
Subjects
BASIC ELECTRONIC CIRCUITRY
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
RESONATORS
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Summary:PROBLEM TO BE SOLVED: To excellently decouple a power circuit and an integrated circuit from each other by using a transmission line type noise filter. SOLUTION: The power circuit 20 generates a source voltage to be supplied to a microprocessor 30 as the integrated circuit. The transmission line type noise filter 10 has a signal input terminal 12, a signal output terminal 14, and two ground terminals 16 and 18 corresponding thereto, and outputs a DC voltage applied to the signal input terminal 12 from the signal output terminal 14 after removing its high-frequency component. A first power line pattern 42 formed on a printed board 40 connects the output terminal 22 of the power circuit 20 to the signal input terminal 12 of the transmission line type noise filter 10. A second power line pattern 44 connects the output terminal 14 of the transmission line type noise filter 10 to the power terminal 32 of the microprocessor 30. A ground line pattern 46 is connected to an external ground potential through a via hole and connects the two ground terminals 16 and 18 to each other. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050290983