초록 ▼

An electronic system contains a backplane circuit card assembly for distribution of electrical signals among component devices. Power is distributed in embedded power planes, one of which is associated with ground. The backplane also contains multiple embedded ground planes. The circuit card assembl

An electronic system contains a backplane circuit card assembly for distribution of electrical signals among component devices. Power is distributed in embedded power planes, one of which is associated with ground. The backplane also contains multiple embedded ground planes. The circuit card assembly is divided by an axis into two halves, each half receiving and consuming approximately equal power. Electrical couplings for power sources and power planes in each half of the backplane are located symmetrically with respect to the axis. A row of ground vias along the axis couples the ground planes to the associated power plane. At all other locations on the backplane, the ground planes are electrically isolated from the associated power plane. Preferably, the backplane assembly comprises a pair of base cards, connected by a single smaller jumper card in which all ground vias are located. Each base card lies on a respective side of the axis, the jumper straddling the axis. The exemplary embodiment is an intelligent redundant array of independent disks (RAID) storage server having concurrent maintenance capability.

대표청구항 ▼

[ We claim:] [1.] An electronic system, comprising:a frame;at least one power supply module mounted within said frame for providing power to functional components of said system;a backplane circuit card assembly having first and second functional halves mounted within said frame, said functional hal

[ We claim:] [1.] An electronic system, comprising:a frame;at least one power supply module mounted within said frame for providing power to functional components of said system;a backplane circuit card assembly having first and second functional halves mounted within said frame, said functional halves consuming substantially equal power and being divided by an axis, said backplane circuit card assembly coupled to said at least one power supply module and distributing electrical power to functional components of said system, said backplane circuit card assembly comprising:a first embedded power plane for conducting a first voltage;a second embedded power plane for conducting a second voltage, said second voltage being associated with ground;a plurality of embedded ground planes;a first power connection within said first functional half for receiving power from said at least one power supply module;a second power connection within said second functional half for receiving power from said at least one power supply module, wherein said first and second power connections are symmetrically located with respect to said axis; anda plurality of ground vias located along said axis, each said ground via electrically connecting said plurality of embedded ground planes and said second embedded power plane;wherein said embedded ground planes are electrically isolated from said second embedded power plane at all locations within said backplane circuit card assembly except at said ground vias located along said axis.