Invention Grant
US07872427B2 Dimming circuit for LED lighting device with means for holding TRIAC in conduction 有权
用于LED照明装置的调光电路,具有用于保持TRIAC导通的装置

  • Patent Title: Dimming circuit for LED lighting device with means for holding TRIAC in conduction
  • Patent Title (中): 用于LED照明装置的调光电路,具有用于保持TRIAC导通的装置
  • Application No.: US11576671
    Application Date: 2005-05-19
  • Publication No.: US07872427B2
    Publication Date: 2011-01-18
  • Inventor: Carlo Scianna
  • Applicant: Carlo Scianna
  • Applicant Address: US IL Naperville
  • Assignee: Goeken Group Corp.
  • Current Assignee: Goeken Group Corp.
  • Current Assignee Address: US IL Naperville
  • Agency: Barnes & Thornburg LLP
  • International Application: PCT/US2005/017551 WO 20050519
  • International Announcement: WO2005/115058 WO 20051201
  • Main IPC: G05F1/00
  • IPC: G05F1/00 H05B41/16
Dimming circuit for LED lighting device with means for holding TRIAC in conduction
Abstract:
The invention disclosed herein is a dynamic dummy load to allow a phase control dimmer to be used with LED lighting. The invention includes providing a dynamic dummy load to provide a load to the dimmer when the LED electronics do not provide sufficient load due to start up issues or ringing in the circuit, the dynamic dummy load providing a reduced flow of current when the LED and its converter electronics provide sufficient current draw from the dimmer. The system generally includes a power source electrically connected to a phase control dimmer, the phase control dimmer electrically connected to converter circuitry to convert the AC power output of the dimmer to DC power output for powering the LED lighting, a dynamic dummy load electrically connected in parallel with the converter circuitry, the dummy load varying its current draw in response to operation of the converter circuitry.
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