PWM设置LCD / LED驱动器的输出

摘要：数字脉冲宽度调制（PWM）输出许多微处理器是基于一个内部8-或16位计数器和功能可编程的占空比。这是适合调整LCD驱动器，负电压LED驱动器，或电流控制的LED驱动器的输出。

Maxim>AppNotes>DisplaydriversKeywords:pulse-widthmodulation,PWM,LEDdrivers,LCDdrivers,Sep20,2004APPLICATIONNOTE3326PWMsetsoutputofLCD/LEDdriverAbstract:Thedigital,pulse-width-modulation(PWM)outputavailablefrommanymicroprocessorsisbasedonaninternal8-or16-bitcounterandfeaturesaprogrammabledutycycle.ItissuitableforadjustingtheoutputofanLCDdriver,anegative-voltageLEDdriver,oracurrent-controlledLEDdriver.ThisdesignideaappearedintheMay27,2004issueofElectronicDesignmagazine.Thedigital,pulse-width-modulation(PWM)outputavailablefrommanymicroprocessorsisbasedonaninternal8-or16-bitcounterandfeaturesaprogrammabledutycycle.Itissuitable