The invention provides a temperature acquisition circuit, a motor controller and a vehicle, relates to the technical field of automobiles, and is used for solving the problem that an existing temperature measurement circuit is inaccurate in temperature measurement when temperature changes in a large range, and the temperature acquisition circuit comprises a first power supply, a first divider resistor, a second divider resistor, a temperature sensitive resistor, an MCU, a control assembly and a voltage follower. One end of the first divider resistor is connected with the positive electrode of the first power supply, and the other end of the first divider resistor is connected with one end of the temperature-sensitive resistor; the other end of the temperature-sensitive resistor is connected with the cathode of the first power supply; one end of the second divider resistor is also connected with the positive electrode of the first power supply, and the other end of the second divider resistor is connected to a first node between the first divider resistor and the temperature-sensitive resistor; the control assembly is connected between the second divider resistor and the first power supply and connected with the MCU, one end of the voltage follower is connected with the MCU, and the other end of the voltage follower is connected to a second node between the first node and the temperature-sensitive resistor.
本申请提供一种温度采集电路、电机控制器及车辆,涉及汽车技术领域,用于解决现有的测温电路在大范围温度变化时测温不准确等问题,该温度采集电路,包括:第一电源、第一分压电阻、第二分压电阻、温敏电阻、MCU、控制组件和电压跟随器;第一分压电阻的一端与第一电源的正极连接,第一分压电阻的另一端与温敏电阻的一端连接;温敏电阻的另一端与第一电源的负极连接;第二分压电阻的一端也与第一电源的正极连接,第二分压电阻的另一端连接在第一分压电阻和温敏电阻之间的第一节点上;控制组件连接在第二分压电阻和第一电源之间,且控制组件与MCU连接,电压跟随器的一端与MCU连接,电压跟随器的另一端连接于第一节点与温敏电阻之间的第二节点。
Temperature acquisition circuit, motor controller and vehicle
一种温度采集电路、电机控制器及车辆
2024-09-03
Patent
Electronic Resource
Chinese
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