Photoelectric coupler constant-current constant-power simultaneous aging circuit and method

The invention is suitable for the technical field of aging of photoelectric couplers, and provides a constant-current and constant-power simultaneous aging circuit and method for a photoelectric coupler. The aging circuit comprises a front-stage constant-current aging circuit and a rear-stage constant-power aging circuit, constant-current control of the front stage is achieved through a constant-current control module, constant-power control of the rear stage is achieved through a current sampling module, a calculation module and a voltage adjusting module, and during aging, the front stage is controlled firstly to achieve current stabilization, and then the rear stage is controlled to achieve constant-power control. An initial voltage is applied to the collector electrode of a post-stage triode, a voltage value required to be adjusted for reaching a set constant power value is calculated after a saturation current is collected, and then the voltage is adjusted by a voltage adjusting module to enable the coll