| 摘要 |
The present invention relates to a switched-mode power supply that comprises a detection circuit (201) for detect- ing a coupling of an electrical device to the switched-mode power supply and a decoupling of the electrical device from the switched-mode power supply, a switch (204) for controlling the supply of electric power to the switched- mode power supply, a control circuit (203) for controlling the switch (204), the control circuit (203) being configured to turn on the switch (204) when the coupling of the elec- trical device has been detected, and to turn off the switch (204) when the decoupling of the electrical device has been detected, and a supply circuit (205) for providing a supply voltage to the detection circuit (201) and the control circuit (203). |
