Current and temperature detection circuit and method

• Main Authors: QI WENZHENG, LI YONGSHENG, YANG ZHENGDE, QI JIAHONG, SHI PO, LIU ZONGWEN, SHEN PEICHUAN
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEASURING QUANTITY OF HEAT; MEASURING TEMPERATURE; PHYSICS; TESTING; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

The invention provides a current and temperature detection circuit and method. The current and temperature detection circuit comprises a channel switching module, a detection module and a control module. And the channel switching module is used for switching between a first state and a second state according to the signal of the control module. The detection module is electrically connected to the channel switching module and the current generating device, receives the current output by the current generating device, and comprises a thermosensitive element. The control module is used for collecting the first voltage of the detection module when the channel switching module is in the first state, and determining the magnitude of the current according to the first voltage; when the channel switching module is in the second state, the second voltage of the detection module is collected, and the impedance of the thermosensitive element is determined according to the second voltage and the current. According to th