Universal power supply for discharge lamps
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United States of America Patent
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Jun 27, 2000
Grant Date -
N/A
app pub date -
Jul 2, 1998
filing date -
Jul 2, 1997
priority date (Note) -
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Abstract
A power supply circuit for discharge lamps having a load circuit with at least one discharge lamp and controlled switches with a switching control means which control the opening and closing of the switches to supply the load circuit with a high-frequency alternating signal. A recognition circuit, which recognizes the type of lamp connected to the load circuit by the power rating of the lamp, is provided. Control means which modify the switching conditions of the switches according to the type of lamp connected to the load circuit are also provided.
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