Current limiting power supply for electron discharge lamps

Details Current limiting power supply for electron discharge lamps Current limiting power supply for electron discharge lamps

1981-08-10

1983-11-08

Dixon, Harold A.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

315222, 315219, 331113A, H05B 3700

Patent

active

044144911

ABSTRACT:
A power supply including a high frequency inverter circuit coupled to an electron discharge lamp load through a special purpose transformer is disclosed. The transformer is wound on a saturable ferromagnetic core structure forming a first magnetic flux path coupling the primary and secondary windings of the transformer and a second shunt magnetic path including an air gap which carries and increasing share of flux as load current increases. The switching of the inverter circuit occurs in response to the partial saturation of the core. Auxilliary windings serially connected with the primary winding of the transformer and wound about the shunt magnetic path enhance the current regulating properties of the supply.

REFERENCES:
patent: 2392845 (1946-01-01), Foerste
patent: 2949565 (1960-08-01), Rohloff et al.
patent: 3331987 (1967-07-01), Powell
patent: 3621331 (1971-11-01), Barron
patent: 4307334 (1981-12-01), Peil

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