Starting circuit of starting device for high-pressure...

Details Starting circuit of starting device for high-pressure... Starting circuit of starting device for high-pressure...

2009-03-19

2011-10-18

Philogene, Haiss (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S289000, C315S247000, C315S307000, C315S276000, C315S312000, C315S261000

Reexamination Certificate

active

08040077

ABSTRACT:
A starting circuit of a starting device for a high-pressure discharge lamp including an auxiliary light source has a diode placed in a forward direction in one of a pair of output lines which connect a main lighting circuit for generating AC voltage to the high-pressure discharge lamp and the auxiliary light source; a capacitor having one end connected to a cathode side of the diode; a boosting transformer including a primary winding, and a secondary winding having one end connected to an anode side of the diode or to the other output line and also having the other end connected to the other end of the capacitor; a high-frequency voltage generation circuit for continuously generating high-frequency voltage in combination with the primary winding; and a short-circuit switch for maintaining a short-circuit condition at both ends of the diode after the high-pressure discharge lamp is started.

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patent: 2007-200607 (2007-08-01), None

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