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A multiplex selector switch and a multiplex analog switch are chosen to realize the switching of photodiode PD and avalanche photodiode APD under multiple channels, and by setting the DAC digital-to-analog converter chip, in order to test the reliability of multiple laser diodes, achieve time-sharing operation, and reduce the size of the driver circuit. A continuous drive power circuit that can drive multiple channels of various laser diodes is produced by configuring the DAC digital-to-analog converter chip with varying operating point voltages. The software design introduces the reinforcement learning Actor-Critic framework for adaptive adjustment of the RBF-PID algorithm parameters to shorten the system dynamic balancing time while having intelligence; the system has deep negative feedback, which is used in the circuit design to improve the stability of the system and the design of dual OPA and MOS tubes to further reduce the deviation caused by leakage current and optimize the voltage-current linearity. The results of the studies demonstrate the benefits of the drive power supply, including its high output precision (<0.1%), high stability (0.05%), low ripple coefficient (<1uA), quick dynamic reaction time, and strong anti-interference ability.