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Current supply for luminescent diodes

  • US 20050218836A1
  • Filed: 01/04/2005
  • Published: 10/06/2005
  • Est. Priority Date: 07/04/2002
  • Status: Active Grant
First Claim
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1. A current supply circuitry for at least one luminescent diode supplied with a.c. current via a current supply mains, having:

  • at least one inductive reactance connected as storage choke in series to the luminescent diode, switching stages for switching over between the charging or discharging process occurring in the storage choke upon over-shooting or under-shooting of threshold values of their respective control voltages and a free running current path, connected parallel to the series connection of the luminescent diodes and the storage choke, for at least a part of the discharge current released by the storage choke to the luminescent diodes upon blocking of the first switching stage.

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