DEVICE AND METHOD FOR LIGHTING HIGH-PRESSURE DISCHARGE LAMP
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
Aug 18, 2015
filing date -
Dec 11, 2014
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Abstract
A lighting device for a high-pressure discharge lamp comprises a power supply circuit configured to supply an alternating current to the high-pressure discharge lamp so as to light the high-pressure discharge lamp, and to increase a power to be supplied to the high-pressure discharge lamp and reduce a frequency of the alternating current when an inter-electrode voltage of the high-pressure discharge lamp reaches a predetermined inter-electrode voltage lower limit.
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