Driving assembly for high-power gas discharge lamps

A technology of gas discharge lamps and discharge lamps, applied in the field of drivers, can solve problems such as time-consuming, expensive, and expensive
CN1817069AInactive Publication Date: 2006-08-09KONINK PHILIPS ELECTRONICS NV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KONINK PHILIPS ELECTRONICS NV
Publication Date
2006-08-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

A driver assembly (10) for driving a high-power gas discharge lamp (L) comprises a plurality of at least two low-power lamp drivers (1 A, 1B, 1C) having their respective output terminals coupled in parallel, each individual driver (l A, 1B, 1C) being designed for generating a commutating DC-current at its respective output terminal, the assembly (10) comprising synchronisation means for synchronising the output currents of the individual drivers (1 A, 1 B, 1 C).
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Description

technical field

[0001] The present invention relates generally to the field of drivers for gas discharge lamps, and in particular to high intensity discharge (HID) lamps. Background technique

[0002] Typically, gas discharge lamps are driven by CuFe ballasts. Furthermore, electronic drives have been developed which offer the advantages of higher operating frequencies and improved efficiency.

[0003] Gas discharge lamps are designed for a specific nominal power and drivers for these lamps must be designed for the required power rating. To date, electronic drives are available with nominal powers of eg 50W, 150W, 250W, 400W, 600W. Gas discharge lamps with very high powers, eg 1800 W, are still currently driven by CuFe ballasts. However, it is desirable that these lamps are also driven by electronic drivers. Therefore, there is a need for high power electronic drivers for gas discharge lamps, especially HID lamps.

[0004] Although low or medium power electronic drivers ...

Claims

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