直流电动机双极性可逆双闭环PWM控制程序-DC motor bipolar PWM reversible double-loop control procedures

带死区控制的PWM波，可驱动IGBT逆变桥。双路pwm波输出，驱动单相桥。双极性控制。-PWM control with dead zone waves to drive IGBT inverter bridge. Dual pwm wave output, driving single-phase bridge. Bipolar control.