This paper talks about L6219 function, circuit design and completion methods, with the focus on a new method of current subdivision technology to finish PWM and apply with MCU.

• 本文简要介绍了L6219芯片的功能，L6219芯片与单片机的电路设计和软件实现方法，重点介绍了利用电流细分技术实现脉宽调制的新方法。