Title :
Sequential low-voltage detecting method for multistring LED BLU circuit
Author :
Kang, E.-C. ; Yeon, J.-E. ; Kim, Do-Sung ; Kwon, Dae-Sung
Abstract :
A new low-voltage detecting method for a multichannel LED back lighting unit is proposed. The proposed method detects the lowest voltage drops among the multichannel LED strings with a reduced number of devices, and it provides feedback voltage to control the stages of the boost converter for minimising the power consumption in the LED driving circuit.
Keywords :
driver circuits; light emitting diodes; low-power electronics; power convertors; LED driving circuit; boost converter; multichannel LED back lighting unit; multichannel LED strings; multistring back lighting unit BLU circuit; power consumption; sequential low-voltage detecting method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3170
