说明：  protel原理图 H桥电机驱动器 特点：5-7V低电压供电，带升压电路产生12V以上栅极驱动电压，两片so-8小体积mos管半桥驱动芯片保证驱动效果 本电路已应用到多个直流电机驱动板上，最大驱动电流可根据所选用的mos管调整
(Protel schematic H bridge motor driver Features :5-7V low-voltage power supply, with step-up circuit for more than 12V gate drive voltage, so-8 2 mos small volume tube-driven half-bridge driver IC to ensure that the effect of this circuit has been applied to a number of DC motor drive board, the biggest drive current according to the selected pipe adjust mos)