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Balancing transformers for multi-lamp operation

  • US 7,560,875 B2
  • Filed: 11/09/2007
  • Issued: 07/14/2009
  • Est. Priority Date: 10/06/2003
  • Status: Active Grant
First Claim
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1. A display panel comprising:

  • a plurality of lamp loads arranged in an electrically parallel configuration;

    a power source configured to provide power to the plurality of lamp loads, wherein the power source is a single AC source or a plurality of synchronized AC sources each comprising an inverter circuit; and

    a plurality of balancing transformers, wherein each of the balancing transformers comprises a primary winding and a secondary winding, each of the primary windings is electrically coupled in series with a different lamp load across the power source, and the secondary windings are electrically coupled in series to form a serial closed loop.

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