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Powering LED-backlit LCDs using DC-DC topology (Part 2)

Posted: 25 Apr 2011     Print Version  Bookmark and Share

Keywords:constant-current sources  linear  hysteretic 

Part 1 of this series looked at constant-current sources including the linear current source, the hysteretic current source, and the PWM "buck" current source. This part tackles driving multiple, long LED strings, including using a PWM voltage boost with multiple linear current sources, the adaptive PWM boost with multiple linear current sources, and the PWM voltage boost with multiple hysteretic current sources.

View the PDF document for more information.





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