Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electrical power distribution systems and devices
Reexamination Certificate
2005-10-28
2009-06-16
Norris, Jeremy C (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electrical power distribution systems and devices
C361S775000, C361S637000, C361S719000, C361S624000, C361S639000, C361S648000, C361S650000
Reexamination Certificate
active
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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Maru Naoki
Nakajima Kazunori
Nisisu Koji
Oomae Shigeo
Yamamura Hideho
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Nguyen Hoa C
Norris Jeremy C
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