Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...
Reexamination Certificate
2008-05-14
2010-10-05
Tran, Thuy Vinh (Department: 2821)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Periodic switch in the primary circuit of the supply...
C315S20000A, C315S279000
Reexamination Certificate
active
07808186
ABSTRACT:
An output of a rectifying circuit (6), which rectifies commercial AC power, is supplied to an inverter (12) through a power factor correction circuit (8). The output of the inverter (12) is voltage-transformed in a transformer (16), rectified in a rectifying circuit (18) and is applied to a xenon lamp (2). A secondary winding (22s) of a transformer (22) of an igniter (20) is connected between the rectifying circuit (18) and the xenon lamp (2) in order to generate an arc in the xenon lamp (2). A pulse generator provides a pulse for a short time period to a primary winding (22p) of the transformer (22). An auxiliary power supply (26) supplies arc-sustaining current prepared based on the commercial AC power to the junction of the rectifying circuit (18) and the secondary winding (22s) of the transformer (22).
REFERENCES:
patent: 5363020 (1994-11-01), Chen et al.
patent: 5365152 (1994-11-01), Ozawa et al.
patent: 5463287 (1995-10-01), Kurihara et al.
patent: 6998791 (2006-02-01), Kobayashi et al.
patent: 7042161 (2006-05-01), Konopka
patent: 2001-035682 (2001-02-01), None
patent: 2006-337512 (2006-12-01), None
Danjo Kenzo
Morimoto Hiroki
Tsujii Takashi
Duane Morris LLP
Sansha Electric Manufacturing Company Limited
Tran Thuy Vinh
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