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EP0081884A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Circuit arrangement for operating high pressure gas-discharge lamps

Assignee: Philips Intellectual Property and Standards GmbH
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Filing: 1982-12-10
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Granted: —
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Expires: 2002-12-10
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Abstract

Abstract Translated from German Bei einer Schaltungsanordnung zum Betrieb von Hochdruck-Gasentladungslampen (14) mit höherfrequentem Strom, bei der eine Gleichspannung einer Transistorbrücke (5 bis 8) zugeführt wird, in deren Querzweig eine Drosselspule (13) angeordnet ist, wird die Taktfrequenz der Transistorbrükke in Abhängigkeit von der Stromaufnahme aus dem Wechselstromnetz innerhalb jeder Periode der Netzwechselspannung geändert. In a circuit arrangement for operating high-pressure gas discharge lamps (14) with a higher-frequency current, in which a direct voltage is supplied to a transistor bridge (5 to 8), in whose transverse branch a choke coil (13) is arranged, the clock frequency of the transistor bridge is dependent on the Current consumption from the AC network changed within each period of the AC voltage.

Inventors

  • 👤 Hans-Günter Ganser
  • 👤 Ralf Dr. Schäfer
  • 👤 Hans-Peter Dr. Stormberg

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 10:28
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/288; H05B41/2885; H05B41/2887; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5387; H02M7/53871; Y; Y02; Y02B; Y02B20/00; Y10; Y10S; Y10S315/00; Y10S315/07

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