Tracking and fault communication for DC power supply modules

Details Tracking and fault communication for DC power supply modules Tracking and fault communication for DC power supply modules

2005-12-08

2011-10-11

Barnie, Rexford (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C323S234000

Reexamination Certificate

active

08035939

ABSTRACT:
A plurality of DC power supply modules have track pins interconnected for tracking of output voltages of the modules during power-up and normal power-down. Each module pulls down its track pin voltage in response to any fault, and detects a track pin voltage below a threshold to detect a fault communicated from any other module, to facilitate fault power-down. The track pin voltage is initially raised above the threshold for power-up. One module can be designated a master for monitoring an input voltage to the modules and for determining the track pin voltage for normal power-up and power-down.

REFERENCES:
patent: 6049242 (2000-04-01), Lutley et al.
patent: 2004/0150928 (2004-08-01), Goodfellow et al.
patent: 2006/0075270 (2006-04-01), Seo
“New Power Modules Include Supply Voltage Sequencing and Margin Test Capabilities”; Chris Thornton; Texas Instruments; Sep. 1, 2003; [online]; <URL: http:/www.eeproductcenter.com/showArticle.jhtml?articleID-14200170>.
“15-A, 5-V Input Non-Isolated Wide-Output Adjust Power Module”; ATH15T05 Series—5-V Input; Astec; Revision 00 (Dec. 3, 2003); pp. 1-14.
“Power Supply Sequencing—A New Approach”; Mark O'Sullivan; Artesyn Technologies; Nov. 1, 2004; pp. 1-4.
20-A, 18-60-V Input Auto-Track Compatible Isolated DC/DC Converter; PTB78520W; Texas Instruments; SLTS226 Jul. 2004; pp. 1-13.

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