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Converter for converting an AC power main voltage to a voltage suitable for driving a lamp

  • US 20030031037A1
  • Filed: 10/03/2002
  • Published: 02/13/2003
  • Est. Priority Date: 07/02/2001
  • Status: Active Grant
First Claim
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1. A converter for converting an AC (alternating current) power main voltage to a voltage suitable for driving a lamp, the converter comprising:

  • a rectifier circuit connectable to the AC power main, adapted to rectify the AC power main voltage and adapted to provide a DC (direct current) voltage;

    a driver circuit adapted to receive the DC voltage from the rectifier circuit, and provide a driver output voltage and a driver output current and further adapted to receive an output current limiting signal;

    a starter circuit for providing a starter signal that initiates oscillation at an operating frequency in the driver circuit;

    a sensing circuit for sensing an output current of the driver circuit and providing the output current limiting signal in response to the sensed output current of the driver circuit; and

    a transformer circuit for transforming the driver output voltage to a voltage suitable for driving the lamp.

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