Invention Grant
US09253861B2 Circuit arrangement and method for operating at least one discharge lamp 有权
用于操作至少一个放电灯的电路布置和方法

  • Patent Title: Circuit arrangement and method for operating at least one discharge lamp
  • Patent Title (中): 用于操作至少一个放电灯的电路布置和方法
  • Application No.: US14383143
    Application Date: 2013-02-28
  • Publication No.: US09253861B2
    Publication Date: 2016-02-02
  • Inventor: Kai WolterNorbert Magg
  • Applicant: OSRAM GmbH
  • Applicant Address: DE Munich
  • Assignee: OSRAM GmbH
  • Current Assignee: OSRAM GmbH
  • Current Assignee Address: DE Munich
  • Agency: Viering, Jentschura & Partner
  • Priority: DE102012203516 20120306
  • International Application: PCT/EP2013/054040 WO 20130228
  • International Announcement: WO2013/131802 WO 20130912
  • Main IPC: H05B41/36
  • IPC: H05B41/36 H05B41/28 H05B41/288 H05B41/292
Circuit arrangement and method for operating at least one discharge lamp
Abstract:
Various embodiments may relate to a circuit arrangement for operating at least one discharge lamp having a commutation device and a control device which is coupled to the commutation device. A first measuring device is used to determine in each case first measurement values, which represent a measure of the magnitude of electrode peaks of the discharge lamp, within a test operating phase in which the first electrode and the second electrode are supplied with energy in an asymmetrical manner. A second measuring device is used to determine a second measurement value which is correlated with the current through the discharge lamp at least during the test operating phase. The control device is designed to actuate the commutation device at least as a function of the determined first measurement values and second measurement values. Various embodiments further relate to a corresponding method for operating at least one discharge lamp.
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