Electronic circuit and method of supplying energy to a...

Details Electronic circuit and method of supplying energy to a... Electronic circuit and method of supplying energy to a...

2006-06-20

2006-06-20

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Impedance or current regulator in the supply circuit

C315S246000, C315S307000

Reexamination Certificate

active

07064495

ABSTRACT:
The invention relates to an electronic circuit and a method of supplying energy to a high-pressure gas-discharge lamp H,65, 75. The electronic circuit comprises a line-supply input section62, 72to receive and convert an a.c. voltage from an a.c. line-supply system61, 71, an energy storage means63, 73to store the energy put out by the line-supply input section62, 72and a lamp-current regulating unit64, 74that is supplied with an input voltage U1by the line-supply input section62, 72via the energy storage means63, 73and that makes available a lamp current I2for a high-pressure gas-discharge lamp II,65, 75. To make it possible for the energy storage means63, 73to be particularly small, it is proposed that the lamp-current regulating unit64, 74have a power section L, D, C, S, A1, A2, K having a transconductive property. If there is a drop in the input voltage U1, this property then automatically produces a reduction in the lamp current I2made available to a high-pressure gas-discharge lamp65, 75, H. This ensures a particularly fast adjustment to voltage fluctuations. The invention also relates to a corresponding method.

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patent: 6552498 (2003-04-01), Prasad et al.
patent: 409069395 (1997-03-01), None
patent: 2000133482 (2000-05-01), None
patent: WO 9501712 (1995-01-01), None

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