Electroniques.biz

Driving WLED as Backlight for Small and Medium Size LCD Display

This topic evaluates charge-pump and inductive boost topologies for several critical factors in backlighting with white-light-emitting diodes (WLEDs) in mobile applications. First, pros and cons of each method and guidelines for selecting the right one are introduced. Next, ways to improve the efficiency of WLED drivers are analyzed with respect to mode transition voltage, output impedance, current-sink threshold voltage, and typical sources of circuit losses. Finally, analog, digital, and pulse-width modulation (PWM) dimming methods for optimal brightness control are compared.
Par Sang-Woo Lee, Michael Wang
Langue : Anglais
Société : Texas Instruments
Pour télécharger le PDF, veuillez vous connecter ou créer un compte

Embarqué
nouvelle carte porteuse SMARC 2.0 de Connect tech chez ADM21 Connect Tech complète sa gamme de cartes porteuse avec la nouvelle carte SMARC 2.0. Cette carte SMARC [...]
Pour communiquer sur vos produits,
n.heurlin@electroniques.biz - 02.98.27.79.99
Pour toute question, merci de nous contacter
10/03/2021 - 11/03/2021
IBS (Intelligent Building Systems)
04/05/2021 - 06/05/2021
PCIM Europe
04/05/2021 - 06/05/2021
SMTconnect
01/06/2021 - 03/06/2021
JEC World 2021