Invention Grant
- Patent Title: Method and circuit arrangement for operating a discharge lamp
- Patent Title (中): 用于操作放电灯的方法和电路装置
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Application No.: US11573014Application Date: 2005-08-04
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Publication No.: US07714522B2Publication Date: 2010-05-11
- Inventor: Pavel Pekarski , Johan Wijntjens , Holger Moench , Jens Pollmann-Retsch
- Applicant: Pavel Pekarski , Johan Wijntjens , Holger Moench , Jens Pollmann-Retsch
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Agency: Thorne & Halajian, LLP
- Priority: EP04103803 20040806
- International Application: PCT/IB2005/052604 WO 20050804
- International Announcement: WO2006/016335 WO 20060716
- Main IPC: H01J11/04
- IPC: H01J11/04

Abstract:
A method and a circuit arrangement operate a discharge lamp, such as a high-intensity discharge lamp (HID) or ultra high performance lamps (UHP). The discharge lamp has first and second operating phases with a higher first or a lower second frequency of the lamp's alternating current (AC). The operating phases are activated alternatively at defined intervals and for defined periods of time, in order to achieve a stable arc discharge and only a low burnout or rise in burning voltage of the lamp during its life by configuring certain forms of electrode tips.
Public/Granted literature
- US20090009095A1 Method and Circuit Arrangement for Operating a Discharge Lamp Public/Granted day:2009-01-08
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