: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 ……