Electrical transmission or interconnection systems – Plural load circuit systems – Plural sources of supply
Patent
1999-05-28
2000-10-24
Jackson, Stephen W.
Electrical transmission or interconnection systems
Plural load circuit systems
Plural sources of supply
307 40, 326 54, H02J 400
Patent
active
061371882
ABSTRACT:
Disclosed is a system and method for supplying power to multiple devices using a single voltage regulator. The present invention includes a comparator that compares the voltage identification codes from multiple devices in a system. If all the devices have the same value for the voltage identification code, then the comparator forwards the code to a voltage identification input of a programmable voltage regulator, which then outputs a power supply voltage at a level corresponding to the voltage identification code value of the devices. If any device present in the system has a different value for its voltage identification code, then the comparator outputs a predetermined value to the programmable voltage regulator that prevents the voltage regulator from outputting a power supply voltage.
REFERENCES:
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VRM 8.3 DC-DC Converter Design Guidelines, Intel.RTM., Mar. 1999, Order No. 243870-002, pp. 1-14.
Pentium Processor.RTM. with MMX.TM. Technology, Chapter 9.0 Electrical Specifications, Intel.RTM., 1997, pp. 21-36.
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D'Souza Christian A.
Dempsey Michael P.
Mitchell Craig G.
Pandey Chandra S.
3Com Corporation
Jackson Stephen W.
Roberto Rios
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