PWM (Pulse-Width Modulation) and AI (Artificial Intelligence) multiplexing port and controller

The invention provides a PWM (Pulse-Width Modulation) and AI (Artificial Intelligence) multiplexing port and a controller. The PWM and AI multiplexing port comprises a PWM output drive unit, a sampling unit, a load unit and a switch unit; a first end of the sampling unit is connected with an output end of the PWM output drive unit, and a second end of the sampling unit is used for connecting a port load or receiving an AI signal; a first end of the switch unit is connected with an output end of the PWM output drive unit, and a second end of the switch unit is connected with the load unit; when the switch unit is switched off, the sampling unit is used for sampling the PWM current value of the port load; and when the switch unit is switched on, the PWM output drive unit is closed, and the sampling unit samples the AI signal. The PWM and AI multiplexing port can improve the flexibility of the port, the PWM port is multiplexed so as to realize high-precision acquisition of the AI signal in different ranges, and the on-site diversified application requirements are satisfied.