Single secondary dimming inverter/ballast for gas discharge lamp

Details Single secondary dimming inverter/ballast for gas discharge lamp Single secondary dimming inverter/ballast for gas discharge lamp

1977-02-16

1978-07-11

Willis, Davis L.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Plural load device regulation

307 17, 315212, 315257, 336215, H02M 700

Patent

active

041004760

ABSTRACT:
A highly efficient, energy saving ballasting and transfer circuit, utilizing a single high frequency inverter ballast unit, capable of powering multiple lamp loads from any direct or alternating electric power source, comprises a current feedback inverter in combination with a leakage transformer, which operates to permit coupling of the single inverter unit to any number of lamps, particularly the gas discharge type. The leakage transformer can power any number of lamps from a single source which, because of its linear transfer function, achieves controlled light output of the lamps proportional to the power input. Thus, an excellent dimming capability is achieved. It is important to note that this leakage transformer is a special case of a certain type of multi-path leakage transformer, where only one secondary coil is used to achieve the same dimming capabilities of multiple secondary embodiments.

REFERENCES:
patent: 4016477 (1977-04-01), Ghiringhelli

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