MCU-based virtual electronic load

The invention provides an MCU-based virtual electronic load. The MCU-based virtual electronic load comprises an MCU, a communication unit, a sampling unit and an output control unit, the communicationunit obtains each piece of physical load information sent by an upper computer; the sampling unit acquires the external signals required for testing one or more running states in physical loads; theMCU receives and analyzes the physical load information and the external signals required by one or more physical load operation state tests to generate the corresponding voltage control instructions;and the output control unit receives each voltage control instruction output by the MCU, respectively controls to output a corresponding specified voltage value according to each received voltage control instruction, and obtains a constant resistance and/or current value through the operation and conversion processing of an internal circuit for representing a feedback signal value formed during the actual operation of the