Power distribution for lighting systems

Details Power distribution for lighting systems Power distribution for lighting systems

1989-12-18

1991-03-26

Mis, David

Electric lamp and discharge devices: systems

Plural power supplies

Plural load devices

315312, 315324, H05B 3700, H05B 4100

Patent

active

050032275

ABSTRACT:
A number of power-line-operated high-frequency multi-output central power supplies are mounted at spaced-apart points on the permanent ceiling above a suspended ceiling. From each individual output of each such power supply, high frequency power is provided by way of flexible conductor means to a lighting fixture mounted nearby in the grid structure of the suspended ceiling below. Thus, high frequency power distribution is accomplished in a hub-and-spoke fashion by way of relatively short lengths of conductors--with each conductor carrying a relatively light current. Compared with the conventional bus-wire system of distributing high frequency power to a plurality of lighting fixtures, subject hub-and-spoke distribution system provides for substantially lower distribution losses and minimized radio frequency interference. Also, this hub-and-spoke system provides for more flexibility in terms of installing and positioning the fixtures in the suspended ceiling.

REFERENCES:
patent: 2965804 (1960-12-01), Roesel, Jr. et al.
patent: 3801865 (1974-04-01), Roberts
patent: 4293799 (1981-10-01), Roberts
patent: 4626747 (1986-12-01), Nilssen

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