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Browse Prior Art Database

D C Distribution & Network Balancing Bus

IP.com Disclosure Number: IPCOM000073359D
Original Publication Date: 1970-Dec-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Freisitzer, N: AUTHOR [+2]

Abstract

This distribution bus provides high current low voltage distribution wherein, the voltage variation at any output due to load variations is minimized. The balancing network or distribution bus comprises copper layers 10 as illustrated in diagram A. The various layers are connected only at the points indicated. Diagram A illustrates a bus capable of distributing a 1500 amp input A to 5 300 amp outputs B-F. The IR drop from points A to points B-F varies approximately 1 millivolt if any load varies by + 25 amps. A schematic representation of the various resistances and current paths are shown in diagram B. It can be seen that a large current change results in only a small change in IR drop. This is due to the reinforcing currents that are set up in the other paths.

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D C Distribution & Network Balancing Bus

This distribution bus provides high current low voltage distribution wherein, the voltage variation at any output due to load variations is minimized. The balancing network or distribution bus comprises copper layers 10 as illustrated in diagram A. The various layers are connected only at the points indicated. Diagram A illustrates a bus capable of distributing a 1500 amp input A to 5 300 amp outputs B-F. The IR drop from points A to points B-F varies approximately 1 millivolt if any load varies by + 25 amps. A schematic representation of the various resistances and current paths are shown in diagram B. It can be seen that a large current change results in only a small change in IR drop. This is due to the reinforcing currents that are set up in the other paths. The various dimensions of the copper layers 10 are also given as well as the resultant resistance per foot of length. Thus, the thickness and width of the copper layers, as well as the interconnecting points, are very important in providing the correct resistance and current paths to produce the balanced outputs at which the voltage variations will be at a minimum with respect to load variations.

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