Method for controlling power adapter and power adapter

A power adapter, comprising:

• a controller and a filter capacitor;
• wherein the controller is configured to:
• obtain a real-time value of a bus voltage of the power adapter through voltage sampling;
• match the real-time value of the bus voltage with N control voltage intervals V1 to VN to obtain a real-time control voltage interval that matches the real-time value of the bus voltage, wherein N≥2, the N control voltage intervals are continuous and incremental from V1 to VN, and the N control voltage intervals V1 to VN correspond to N different output power control values P1 to PN;
• and
• adjust, according to the real-time control voltage interval, an output power command value of the power adapter to an output power control value corresponding to the real-time control voltage interval.

An electronic device, comprising:

• a processor;
• and
• a memory configured to store executable instructions of the processor;
• wherein the processor is configured to execute the following operations by executing the executable instructions:
• obtaining a real-time value of a bus voltage of the power adapter;
• matching the real-time value of the bus voltage with N control voltage intervals V1 to VN to obtain a real-time control voltage interval that matches the real-time value of the bus voltage, wherein N≥2, the N control voltage intervals are continuous and incremental from V1 to VN, and the N control voltage intervals V1 to VN correspond to N different output power control values P1 to PN;
• and
• adjusting, according to the real-time control voltage interval, an output power command value of the power adapter to an output power control value corresponding to the real-time control voltage interval.