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INSTANTANEOUS STARTER DEVICE FOR A DISCHARGE LAMP EMPLOYING A DIODE THYRISTOR

  • US 3,626,243 A
  • Filed: 08/21/1969
  • Issued: 12/07/1971
  • Est. Priority Date: 08/27/1968
  • Status: Expired due to Term
First Claim
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1. A starter device for a fluorescent discharge lamp having first and second cathodes, each of said cathodes having first and second ends, comprising a. a current limiting ballast connected in series with an electric power source between the first ends of said first and second cathodes, b. a pulse transformer having primary and secondary windings wound in the same direction, each of said windings having first and second ends, c. first conductive means coupling a first end of the secondary winding of said transformer to the second end of said first cathode, the second end of said secondary winding being connected to the second end of said primary winding, d. a reverse blocking diode thyristor, e. a capacitor coupled in series with said thyristor across the primary winding of said transformer, and f. second conductive means coupling the junction of said thyristor and capacitor to the second end of said second cathode.

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