Method and driving unit for driving a gas discharge lamp

Details Method and driving unit for driving a gas discharge lamp Method and driving unit for driving a gas discharge lamp

2007-02-09

2011-11-29

Ismail, Shawki S (Department: 2819)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S291000, C315S271000, C315S2090SC

Reexamination Certificate

active

08067903

ABSTRACT:
Disclosed is a method for driving a gas discharge lamp in at least two operation modes, including the step of applying an alternating voltage to the gas discharge lamp, the alternating voltage having a first polarity during a first time interval and a second polarity opposite to the first polarity during a second time interval. The first time interval and the second time interval are repeated alternately. During a second operation mode, the electrical power being provided to the gas discharge lamp is smaller compared to a first operation mode, and the duration of the first time interval is at least a multiple of the duration of the second time interval.

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patent: 2005/0237004 (2005-10-01), Bonigk
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patent: 2004319193 (2004-11-01), None
patent: 04002200 (2003-12-01), None
patent: 2005006819 (2005-01-01), None

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