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

Test et mesure
Banc de mesure de prototypes d    Le banc de mesure d’antenne Ellipitka modèle MES01_0000_1800 permet la caractérisation rapide [...]
Pour communiquer sur vos produits,
al.rouaud@electroniques.biz -
Pour toute question, merci de nous contacter
12/03/2020 - 14/03/2020
17/03/2020 - 18/03/2020
Naidex 2020
18/03/2020 - 19/03/2020
IoT World + MtoM Embedded
18/03/2020 - 18/03/2020
Table ronde sur les apports de la 5G à l’IoT
31/03/2020 - 02/04/2020
Passenger Terminal Expo
31/03/2020 - 03/04/2020
Global Industrie
26/05/2020 - 28/05/2020