Title:
点火回路、方法
Document Type and Number:
Japanese Patent JP2008514893
Kind Code:
A
Abstract:
An ignition circuit for generating high voltage pulses to a discharge lamp is provided with a switching element (SW1) to enable to stop generating said high voltage pulses when the lamp does not ignite or has ignited. The switching element (SW1) is connected between the input terminals (ground, Vdc) of a supply voltage and a parallel circuit of a capacitor (C1) and a series connection of a breakdown device (B1) and a primary winding (W1) of a transformer (T1). Switching the switching element (SW1) non-conductive prevents that the capacitor (C1) from charging.
Inventors:
Hendrix, Johann Elfe
Dirk Yeh, van Kurthofen
Lofels, Marinus Ye Ha
Dirk Yeh, van Kurthofen
Lofels, Marinus Ye Ha
Application Number:
JP2007533028A
Publication Date:
May 08, 2008
Filing Date:
September 19, 2005
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F42D1/05; F42B3/10
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito