Power supply device and luminaire

Power supply device and luminaire

  • CN 103,023,354 A
  • Filed: 08/29/2012
  • Published: 04/03/2013
  • Est. Priority Date: 09/21/2011
  • Status: Active Application
First Claim
Patent Images

1. supply unit is characterized in that comprising:

  • Rectification circuit carries out rectification to AC power;

    AndThe supply voltage converter section, have a plurality of power supply voltage converting circuits, described a plurality of power supply voltage converting circuit is arranged on described rectification circuit and is connected respectively between loaded a plurality of efferent, a plurality of described power supply voltage converting circuits comprise switch element, this switch element is to changing and be supplied to a plurality of described loads through the supply voltage of described rectification circuit rectification, the switching frequency of the described switch element of a plurality of described power supply voltage converting circuits is plural at least different switching frequency, and make each switching frequency keep fixing, and carry out conducting disconnection action by the described switch element of a plurality of described power supply voltage converting circuits.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×