Ballast circuit for multiple parallel negative impedance loads

Details Ballast circuit for multiple parallel negative impedance loads Ballast circuit for multiple parallel negative impedance loads

1983-12-27

1986-03-04

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

315257, 315277, 315278, 336173, H05B 4116, H05B 4124

Patent

active

045742227

ABSTRACT:
A current-balancing transformer is provided to supply plural parallel-connected electrical loads, especially loads such as gas discharge lamps which exhibit negative impedance and/or non-linear impedance over at least a part of their normal operating range. The current-balancing transformer forces current sharing among the loads so that each of the parallel-connected loads is supplied operating current.

REFERENCES:
patent: 2392845 (1946-01-01), Foerste
patent: 2429162 (1947-10-01), Keiser et al.
patent: 4388562 (1983-06-01), Josephson

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