Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Periodic switch in the primary circuit of the supply...
Reexamination Certificate
2006-06-20
2006-06-20
Tran, Thuy V. (Department: 2821)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Periodic switch in the primary circuit of the supply...
C315S224000
Reexamination Certificate
active
07064494
ABSTRACT:
A discharge lamp operating apparatus includes a DC power circuit portion for outputting a DC voltage; an inverter circuit including a switching element provided with a control terminal for converting an output from the DC power circuit portion to an AC voltage; a control terminal driving circuit for controlling the switching element provided with a control terminal to be on or off; and a resonant load circuit including a discharge lamp, a first inductor and a first capacitor. The control terminal driving circuit includes a drive winding mutually coupled to the first inductor; a series circuit of a voltage clamp element and an impedance element, the series circuit being connected to at least one end of the drive winding, and the control terminal driving circuit is configured to control the switching element provided with a control terminal to be on or off by a voltage generated at the drive winding.
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Kawasaki Mitsuharu
Kurachi Toshiaki
Miyazaki Kouji
Harness & Dickey & Pierce P.L.C.
Tran Thuy V.
Vy Hung Tran
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