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 > App Notes > Display drivers Keywords: pulse-width modulation, PWM, LED drivers, LCD drivers, Sep 20, 2004 APPLICATION NOTE 3326 PWM sets output of LCD/LED driver Abstract: The digital, pulse-width-modulation (PWM) output available from many microprocessors is based on an internal 8- or 16-bit counter and features a programmable duty cycle. It is suitable for adjusting the output of an LCD driver, a negative-voltage LED driver, or a current-controlled LED driver. This design idea appeared in the May 27, 2004 issue of Electronic Design magazine. The digital, pulse-width-modulation (PWM) output available from many microprocessors is based on an internal 8- or 16-bit counter and features a programmable duty cycle. It is suitable……