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实用新型
CN204679881U 一种适用于单片机的温度采集电路 失效 - 权利终止

一种适用于单片机的温度采集电路
摘要：
本实用新型公开了一种适用于单片机的温度采集电路，包括温度传感器RV、电阻R1、电阻R2、三极管Q1、三极管Q2和电压比较器U1，电压比较器U1引脚2分别连接三极管Q2发射极和电阻R5，三极管Q2集电极分别连接电压比较器U1引脚4、电阻R3、温度传感器RV和电源VCC，电压比较器U1引脚3连接电源VCC，电压比较器U1引脚8分别连接电阻R5另一端、三极管Q1发射极和电阻R1并接地，电阻R1另一端分别连接电阻R2和温度传感器RV另一端，电阻R2另一端连接三极管Q1基极。本实用新型适用于单片机的温度采集电路能够将温度的变化转化为高低电平输出到单片机，从而通过单片机控制外部负载电路，电路结构简单，体积小，成本低，非常适合推广使用。
摘要（英）：

The utility model discloses a temperature data collection circuit suitable for singlechip, including temperature sensor RV, resistance R1, resistance R2, triode Q1, triode Q2 and voltage comparater U1, triode Q2 projecting pole and resistance R5 are connected respectively to voltage comparater U1 pin 2, voltage comparater U1 pin 4 is connected respectively to triode Q2 collecting electrode, resistance R3, temperature sensor RV and power VCC, voltage comparater U1 pin 3 VCC that connects, the 8 difference connecting resistance R5 other ends of voltage comparater U1 pin, triode Q1 projecting pole and resistance R1 and ground connection, the resistance R1 other end is the connecting resistance R2 and the temperature sensor RV other end respectively, triode Q1 base is connected to the resistance R2 other end. The utility model discloses temperature data collection circuit suitable for singlechip can turn into the change of temperature height level output to singlechip to through the single chip microcomputer control external load circuit, circuit structure is simple, and is small, with low costs, especially adapted using widely.

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