Generation of system power-good signal in hot-swap power...

Details Generation of system power-good signal in hot-swap power... Generation of system power-good signal in hot-swap power...

2006-08-23

2009-11-24

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S014000, C714S047300, C324S500000

Reexamination Certificate

active

07624303

ABSTRACT:
A power controller system is described herein, which may consist of one or more power controller ICs and other components. Each power controller selectively couples power supply voltages to a plurality of electrical devices, such as cards that have been inserted into expansion slots in a server. To simplify processing by a system processor monitoring the health of the power subsystem, each power controller IC asserts a power-good signal at a power-good terminal only if the operating conditions for all channels are satisfactory. A power good signal is generated even if a channel is not supplying power to a channel due to a card retention switch signal not being asserted or the channel is not enabled. The power-good signals from all power controllers in the system are then ANDed together to determine if any of the power controllers are experiencing unsatisfactory conditions. If the resulting single signal is an asserted power-good signal, then the system knows that all channels in all the power controllers are experiencing satisfactory conditions, even though some channels may not be enabled or there are no modules (e.g., cards) connected to a power controller.

REFERENCES:
patent: 6345369 (2002-02-01), Kitamorn et al.
patent: 6816936 (2004-11-01), Wu et al.
patent: 7034569 (2006-04-01), Balasubramanian et al.
patent: 7219258 (2007-05-01), LeVangia et al.
patent: 2005/0240814 (2005-10-01), Sasakura et al.
patent: 2006/0133181 (2006-06-01), Amano
patent: 2006/0248366 (2006-11-01), Schumacher et al.

Affiliated with

Also associated with

Rating

Generation of system power-good signal in hot-swap power... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Generation of system power-good signal in hot-swap power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation of system power-good signal in hot-swap power... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4127731