| 摘要 |
An information converter power supply circuit, system, and power supply method, relating to the technical field of power supply circuits. The power supply circuit comprises a control circuit on-off switch transistor and a delay start-up circuit; when the power supply circuit is connected to a power source, the delay start-up circuit controls a slow voltage rise of the control end of the switch transistor, such that the switch transistor is slowly started up (conducts) from an off state, and then the output voltage of the output end of the switch transistor slowly rises, i.e. the power supply voltage of the information converter slowly rises. The overshoot current caused by the switch transistor starting up too fast is prevented, the overcurrent in the power supply circuit of the information converter is reduced, and the safety of the power supply circuit of the information converter is improved. |
