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Inverted output voltage converter LED Driver

IP.com Disclosure Number: IPCOM000010493D
Publication Date: 2002-Dec-09
Document File: 1 page(s) / 38K

Publishing Venue

The IP.com Prior Art Database

Abstract

ID607942

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INVERTED OUTPUT VOLTAGE CONVERTER LED DRIVER

In the fig is shown a topology of a converter for DC operating of a LED load. The LED load is directly connected to the input of the converter as to overcome the restriction input voltage > output voltage.

The shown topology has furthermore advantages as listed:

-                      low component count

-                      no transformer and no elcaps for output filter

-                      high power conversion efficiency of between 80-90%

-                      zero voltage switching at turn-off and zero current switching at switching-on

-                      low generation of EMI