Seriesable redundant / Hot swappable PSU (06-Oct-2009)

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IP.com Prior Art Database Disclosure (Source: IPCOM)

Disclosure Number IPCOM000188416D dated 06-Oct-2009

Originally published in Prior Art Database

Disclosed by: IBM

Country: Undisclosed

Disclosure File: 2 pages / 76.1 KB / English (United States)

In the high efficiency 1U system, we usually can only support 12" wide planar to reserve the space for two redundant PSU. Nowadays, we have a new planar architecture which has dimension as 6.5" x 15"~18" (width x depth). We call it as half-wide planar. If we want to support two half-wide planar in 1U space, the total planar area width will be more than 13". Thus, the chassis width can not support two 1U high efficiency redundant PSUs in 1U space if the chassis want to install into standard 19" rack. The invention can solve this problem and still have half-hot swappable function. In one embodiment, the system can comprise a PDB, a redundant PSU and a Redundant & Hot Swappable PSU. The dimension of the PSU can be 40mm x 80mm x ~mm (HxWxD). The depth of the PSU can depend on the PDB dimension and chassis depth. The height of the PSU can depend on the internal fan unit dimension.

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Seriesable redundant / Hot swappable PSU Our idea as below

New Redundant and half hot swappable PSU

Redundant

Redundant
& Hot Swappable

Seriesable PSU design
Redundant PSU architecture Support one PSU Hot Swappable Dimension
• PSU: 40mm x 80mm x ~mm (HxWxD)
• Depth: Depend on the PDB dimension and Chassis

depth
• Height: Depend on the internal fan unit dimension

PSU

80mm

HDD & ODD area

PSU

200~mm

PDB

Solve 1U support 13" planar redundant PSU problem

PSU design concept 1 Redundant + Redundant

DC golden finger - similar to AC golden finger brd. It provide a channel to let DC current can connect to the PDB

PDB

AC golden finger

AC plug

PDB

DC golden finger

PSU

DC current

PSU

DC current

PSU

DC current

PSU

DC plug

DC golden finger

AC golden finger

AC current

PSU

AC current

PSU

Power cable

DC plug

AC plug

When one of the PSU broken , we still have another workable PSU

AC golden finger - AC power through AC golden finger divide into two current flow. One for rear PSU the other for the other one PSU. Use this concept we can series connect more than two PSU if needed.

Rear view

Page 2 of 2

PSU design concept 2 Hot Swappable + Redundant

Power cable -
Regarding this longer power cable, can also use interposal card/cable to replace.

Front one is Redundant

Iso view

PDB

PSU

...

(Source: IPCOM)

(Source: IPCOM)

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