Electronic circuit structure, power supply apparatus, power...

Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electrical power distribution systems and devices

Reexamination Certificate

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Details

C361S775000, C361S637000, C361S719000, C361S624000, C361S639000, C361S648000, C361S650000

Reexamination Certificate

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07548411

ABSTRACT:
This invention prevents a deterioration of efficiency of a power supply apparatus due to a semiconductor power supply voltage drop, prevents an increase in wasted power, and prevents erroneous operations due to feeder wire voltage drop.In the mounting structure of electronic circuits having a plurality of busbars as current paths on a printed circuit board, the plurality of busbars have almost parallel portions spaced a predetermined distance apart; a span of the parallel portions of the plurality of busbars is greater than the predetermined distance; and in the parallel portions of the plurality of busbars, the plurality of busbars are connected by a wiring pattern. In the switching power supply apparatus built on a printed circuit board, with its output voltage of less than 2 V and its output current of more than 100 A, a means is provided for making the power efficiency higher than 70%.

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patent: 2004/0242086 (2004-12-01), Takagi
patent: 2005/0219825 (2005-10-01), Campini et al.
patent: 2002-345245 (2002-11-01), None

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