Circuit capable of adjusting and controlling output via cooperation between control interfaces and PWM interfaces

The invention belongs to the technical field of load control and specifically relates to a circuit capable of adjusting and controlling load power output via cooperation between control interfaces and PWM interfaces. The circuit comprises a control unit and at least one base unit, wherein the base unit comprises a first switch control unit, a second switch control unit and at least two loads; each of the first switch control unit and the second switch control unit comprises at least one switch control circuit; each switch control circuit of each switch control unit is used for controlling at least one load. The circuit can be applied to load control such as light emitting diode LED brightness adjustment, fan rotating speed adjustment or the like in daily life.