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Power supply for lighting and luminaire

  • US 8,963,439 B2
  • Filed: 09/10/2012
  • Issued: 02/24/2015
  • Est. Priority Date: 11/04/2011
  • Status: Active Grant
First Claim
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1. A power supply for lighting comprising:

  • an output element connected between a power source and a lighting load and configured to be switched to a switching operation repeating an ON state and an OFF state and an ON continuation operation continuing the ON state;

    a constant current element connected in series with the output element and configured to limit an electric current flowing to the output element; and

    a control circuit configured to control a constant current value of the constant current element by controlling the constant current element.

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