Invention Grant
US09210772B2 Actuating a plurality of series-connected luminous elements 有权
驱动多个串联连接的发光元件

  • Patent Title: Actuating a plurality of series-connected luminous elements
  • Patent Title (中): 驱动多个串联连接的发光元件
  • Application No.: US13985033
    Application Date: 2012-01-26
  • Publication No.: US09210772B2
    Publication Date: 2015-12-08
  • Inventor: Hubert Maiwald
  • Applicant: Hubert Maiwald
  • Applicant Address: DE Munich
  • Assignee: OSRAM GmbH
  • Current Assignee: OSRAM GmbH
  • Current Assignee Address: DE Munich
  • Agent Cozen O'Connor
  • Priority: DE102011003931 20110210
  • International Application: PCT/EP2012/051183 WO 20120126
  • International Announcement: WO2012/107293 WO 20120816
  • Main IPC: H05B37/00
  • IPC: H05B37/00 H05B37/02 H05B33/08
Actuating a plurality of series-connected luminous elements
Abstract:
A circuit for actuating a plurality of light-emitting means which are connected in series, comprising a plurality of electronic switches, which can be actuated depending on a rectified system voltage. The plurality of electronic switches are arranged in parallel with at least some of the light-emitting means, wherein each of the plurality of electronic switches short-circuits on activation of at least one of the light-emitting means connected in series. At least one energy store is connected in parallel with a first group of light-emitting means during a charge phase by virtue of the electronic switches, and it is connected in parallel with a second group of light-emitting means during a discharge phase by virtue of the electronic switches.
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