Please download the dossier by clicking on the dossier button x
×

DRIVING DEVICE AND ELECTRONIC APPARATUS USING THE SAME

  • US 20110057575A1
  • Filed: 07/25/2010
  • Published: 03/10/2011
  • Est. Priority Date: 09/04/2009
  • Status: Active Grant
First Claim
Patent Images

1. A driving device used for receiving an alternating current (AC) voltage from a power supply, and generating a driving voltage to drive a luminous element to emit light, the driving device comprising:

  • a dimmer for receiving the AC voltage, and generating a primary voltage for controlling the brightness of the luminous element;

    a rectifying-filtering unit for rectifying and filtering the primary voltage to generate a secondary voltage;

    a rectifying-dividing unit for rectifying and dividing the primary voltage to generate a detecting voltage;

    a control unit for receiving the secondary voltage, and generating a pulse voltage whose duty cycle is variable with the detecting voltage; and

    a voltage transforming unit for transforming the secondary voltage to the driving voltage according to the pulse voltage.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×