Electronic ballast and electronic transformer

Details Electronic ballast and electronic transformer Electronic ballast and electronic transformer

2005-06-21

2005-06-21

Wong, Don (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

C315S224000, C315S244000, C315S291000, C315S307000

Reexamination Certificate

active

06909246

ABSTRACT:
An electronic ballast which includes a resonant load circuit (L1, C1) in series with a discharge lamp (LA), the resonant load circuit being supplied by an inverter (S1, S2) which outputs variable alternating voltages at frequencies above 200 KHZ. Alternatively, an electronic transformer incorporates a load circuit and a variable output frequency inverter for operating a low volt halogen lamp (7) at variable alternating frequencies above 200 KHZ. Passive components of the ballast and transformer are integrated into a multilayer circuit (13).

REFERENCES:
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patent: 5371440 (1994-12-01), Liu et al.
patent: 5677602 (1997-10-01), Paul et al.
patent: 5714846 (1998-02-01), Rasch et al.
patent: 5936358 (1999-08-01), Okamoto et al.
patent: 5945902 (1999-08-01), Lipkes et al.
patent: 5949191 (1999-09-01), Cassese et al.
patent: 4126544 (1993-02-01), None
patent: 0581206 (1994-02-01), None
patent: 0690460 (1996-01-01), None
patent: WO 9607297 (1996-03-01), None

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