Browse Prior Art Database

Power Supply with Power Timer for the Automatic System Recovery

IP.com Disclosure Number: IPCOM000118352D
Original Publication Date: 1996-Dec-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 4 page(s) / 67K

Publishing Venue

IBM

Related People

Fujie, Y: AUTHOR

Abstract

Disclosed is a Power supply which has a power-off timer and a power-on timer to control the output of the power supply. This timer function provides the windows for both system operating system shutdown and system hardware restart. It enables the system level automatic recovery for the unattended system when the software detects unrecoverable error.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 73% of the total text.

Power Supply with Power Timer for the Automatic System Recovery

      Disclosed is a Power supply which has a power-off timer and a
power-on timer to control the output of the power supply.  This timer
function provides the windows for both system operating system
shutdown and system hardware restart.  It enables the system level
automatic recovery for the unattended system when the software
detects unrecoverable error.

      Fig. 1 shows an example of the system which uses this power
supply.  Power supply (1J) has a Power output control circuit (1H)
which is controlled by an Off timer (1F) and an On timer (1G).  This
timer is controlled by a device driver (1C) located in the target
system (1A), and both an Application software (1B) and Operating
system (1D) can call the service of this Device driver (1C) to
recover error.  When either Application software (1C) or Operating
system (1D) detects the unrecoverable error, it requests the recovery
service to the device driver (1C).  The device driver starts the off
timer (1F) by using the Control signal (1E), and also requests the
shutdown of the operating system (1D).  The off-timer value has
enough time for the completion of the system shutdown.  After the Off
timer value expires, the Power output control circuit (1H) cuts the
Power output (1I), and also starts the On-timer.  The On-Timer value
has enough time for the stabilization of the system hardware.  After
the On timer value expires, the Power Output C...