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Discharge lamp driving method and electronic operators for implementation of the same

  • US 4,933,606 A
  • Filed: 02/15/1989
  • Issued: 06/12/1990
  • Est. Priority Date: 09/09/1987
  • Status: Expired due to Fees
First Claim
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1. A power sourcing apparatus for driving a load to dissipate a predetermined amount of power, comprising:

  • resonant circuit means incorporating said load;

    switching means connected between a negative and positive voltage source adapted to alternately connect said resonant circuit means thereto when a zero current state at said switching means is detected;

    synchronizing means for detecting a zero current state at said switching means and for driving said switching means, said synchronizing means being connected to said switching means and said resonant means; and

    control circuit means for controlling the amount of charge to be absorbed from said positive and negative voltage source for transfer to said resonant circuit means thereby permitting said load to dissipate a predetermined amount of power.

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