06897677 is referenced by 6 patents and cites 6 patents.

A module standard for integrated circuit such as FPGAs is provided in which power supply voltages for daughtercards are not fixed in advance. Instead programmable power supplies are provided and a method is provided in which each daughtercard can specify the required power supply voltage. Thus, unlike prior-art systems, this modular system is backward and forward compatible with chips, such as FPGAs, from many process generations allowing easy upgrading as new FPGA families become available. A motherboard or baseboard for use with this invention includes a plurality of module connectors into which compatible modules or “daughtercards” can be plugged and a plurality of programmable power supplies. In a preferred embodiment there are four sets of module connectors and sixteen programmable power supplies. This allows each module to have four independently specifiable power supply voltages. A module may also connect several power supplies together in order to obtain higher current at a single voltage. Various schemes are described to ensure that the programmable power supplies will never deliver too high a voltage to the components on the modules.

Title
Programmable power supply system
Application Number
10/708753
Publication Number
6897677 (B2)
Application Date
March 23, 2004
Publication Date
May 24, 2005
Inventor
Allan J Cantle
Glasgow
GB
Malachy Devlin
Glasgow
GB
Agent
Townsend and Townsend and Crew
Assignee
Nallatech
GB
IPC
H03K 019/177
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