在电池供电应用的LED驱动：控制亮度功率高效

：白色发光二极管（ WLED ）驱动器，提供高效率和LCD显示器的背光的亮度匹配。控制亮度，这些驱动程序在配置串行或并行排列的LED电流调节。电荷泵驱动并联LED ，其监管与个别监管机构或简单的镇流电阻的电流。基于电感的转换器提供电流的LED串，天生平等。两种配置的目的，有效地推动手机，掌上电脑，数码相机的LED 。
Maxim > Design support > App notes > Automotive > APP 1804
Maxim > Design support > App notes > Power-Supply Circuits > APP 1804

Keywords: white LED, light-emitting diode, bias, LCD backlighting, serial, PWM, shutdown, low noise, overvoltage, over-voltage
protection, dimming control, internal MOSFET, high efficiency, displays, current regulators, brightness matching, current matching
Mar 25, 2003
REFERENCE DESIGN 1804 INCLUDES: Tested circuit Schematic Description
Driving LEDs in Battery-Operated Applications: Controlling Brightness
Power Efficiently
Abstract: White light-emitting diode (WLED) drivers provide high efficiency and brightness