OPERATING DEVICE FOR OPERATING A LIGHT SOURCE, IN PARTICULAR LED
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Abstract
The invention relates to an operating device for operating an LED light source. The device includes a first power converter stage (P1) supplied with mains voltage with a first reference potential (Z1), a second power converter stage (P2) with a second reference potential (Z2), which is connected to the secondary side of the first power converter stage (P1) via a first potential isolation unit (G1), a digital control unit (C1), which, via a second potential isolation unit (G2), controls the first power converter stage (P1) and the second power converter stage (P2) without potential isolation, at least one power switch (S2) which clocks the converter stage (P2), and an illuminant (L), which is supplied with energy by the second converter stage (P2).
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Citations
35 Claims
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1-16. -16. (canceled)
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17. An operating device for operating a light source, comprising:
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a first power converter stage supplied with mains voltage with a first reference potential, a second power converter stage with a second reference potential, which is connected to the secondary side of the first power converter stage via a first potential isolation element, a control unit, which via a second potential isolation element controls the first power converter stage and the second power converter stage without potential isolation, at least one power switch which clocks the converter stage, and an illuminant, which is supplied with energy by the second converter stage. - View Dependent Claims (18, 19, 20, 21, 22, 33, 34, 35)
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23. An operating device for operating a light source, comprising:
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a first power converter stage supplied with mains voltage with a first reference potential, a second power converter stage with a second reference potential, which is connected to the secondary side of the first power converter stage via a first potential isolation element, a digital control unit, which without potential isolation controls the first power converter stage and via a second potential isolation element the second power converter stage, at least one power switch which clocks the converter stage, and an illuminant, which is supplied with energy by the second converter stage. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. An operating device for operating a light source, comprising:
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a first power converter stage with a first reference potential, a second power converter stage, which is connected to the first power converter stage, a control unit, which without potential isolation controls the first power converter stage and via a second potential isolation element at least one power switch, which clocks the power converter stage, and an illuminant, in particular an LED, which is supplied with energy by the second power converter stage and connected to a second reference potential, which is isolated relative to the first power converter stage via a first potential isolation unit. - View Dependent Claims (31, 32)
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Specification