The air pump of the massage chair is driven like this.

Does the subject want to ask "how to drive the air pump of massage chair"? It needs AC drive. Massage chair is a chair driven by motor and air pump, which massages, kneads and beats some parts of human body with the help of machinery (massage wheel) and air bag. The power control circuit of air pump massage chair only has the DC output function of ordinary power supply, but the air pump and other devices of air pump massage chair need AC power supply to drive.