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US09763297B2 Lighting apparatus and methods using oscillator-based dimming control 有权

  • Patent Title: Lighting apparatus and methods using oscillator-based dimming control
  • Application No.: US13667463
    Application Date: 2012-11-02
  • Publication No.: US09763297B2
    Publication Date: 2017-09-12
  • Inventor: Yuequan Hu
  • Applicant: Cree, Inc.
  • Applicant Address: US NC Durham
  • Assignee: Cree, Inc.
  • Current Assignee: Cree, Inc.
  • Current Assignee Address: US NC Durham
  • Agency: Myers Bigel, P.A.
  • Main IPC: H05B33/08
  • IPC: H05B33/08
Lighting apparatus and methods using oscillator-based dimming control
Abstract:
An apparatus includes a driver circuit configured to control a current through at least one LED responsive to a control signal. The apparatus further includes a modulated oscillator circuit configured to modulate an oscillating signal responsive to a dimming signal and to generate the control signal responsive to the modulated oscillating signal.
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