Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2007-03-20
2007-03-20
Chen, Shih-Chao (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Reexamination Certificate
active
10979198
ABSTRACT:
The invention relates to an electronic ballast, in which an internal converter S1, S2, C1continues to operate in the event of a lamp failure. An auxiliary power supply from control circuits can thus be maintained.
REFERENCES:
patent: 4277728 (1981-07-01), Stevens
patent: 5598326 (1997-01-01), Liu et al.
patent: 6677716 (2004-01-01), Rudolph et al.
patent: 6690122 (2004-02-01), Weirich
patent: 6833678 (2004-12-01), Mayer et al.
patent: 101 10 239 (2002-07-01), None
A Minh Dieu
Bessone Carlo S.
Chen Shih-Chao
Patent-Treuhand-Gesellschaft fuer Elektrische gluhlampen MBH
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