Electrical transmission or interconnection systems – Plural supply circuits or sources
Patent
1998-09-28
2000-02-29
Gaffin, Jeffrey
Electrical transmission or interconnection systems
Plural supply circuits or sources
307 80, 307150, H02J 100
Patent
active
060312971
ABSTRACT:
Printed circuit board comprising two power supplies V.sub.1 and V.sub.2 and a ground (GND), and a plurality of modules among which at least one module supplied by one of the power supplies can be replaced by another pin-compatible module supplied by the other power supply, each power supply being supplied in each case by a circuit including a ferrite connected to the power supply and a capacitor connected to the ground in order to filter the high frequency signals due to the switching operations in the modules. The board comprises a first area (24 or 24') having a first and a second terminals which is dedicated to a first ferrite to be connected to one power supply by means of its first terminal, and a second area (26 or 26') having a first and a second terminals and being dedicated to a second ferrite to be connected to the other power supply by means of its first terminal, each area including a connecting means for connecting the second terminal associated with the area to the footprints of the module.
REFERENCES:
patent: 5488540 (1996-01-01), Hatta
patent: 5497037 (1996-03-01), Lee et al.
patent: 5587887 (1996-12-01), Price et al.
patent: 5616967 (1997-04-01), Lee et al.
patent: 5682298 (1997-10-01), Raynham
patent: 5736796 (1998-04-01), Price et al.
patent: 5847451 (1998-12-01), Ohtaki et al.
Louis Philippe
Verhaeghe Michel
Cockburn Joscelyn G.
Gaffin Jeffrey
International Business Machines - Corporation
Zura Peter
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