| 摘要 |
A monitoring circuit and an electronic device, which are used for improving configurability of a system. The monitoring circuit comprises a configuration interface (101), a control circuit (102), a detection circuit (103), a direct-current voltage source (104), a switch circuit (105) and a first resistor (106). A first end of the configuration interface (101) is separately connected to the direct-current voltage source (104) and an input end of the switch circuit (105). A second end of the configuration interface (101) is separately connected to a first end of the first resistor (106) and an output end of the switch circuit (105). A control end of the switch circuit (105) is connected to the control circuit (102). A second end of the first resistor (106) is grounded. The detection circuit (103) is connected to the first end of the first resistor (106). The configuration interface (101) is used for being connected to a dry contact. The dry contact comprises an input dry contact or an output dry contact. The control circuit (102) is used for controlling switching on and switching off of the switch circuit (105). The detection circuit (103) is used for detecting voltages at the two ends of the first resistor (106). |
