介绍了ULN2003的特点与电路结构，采用单片机连接uln2003组成的驱动系统来驱动步进电机。
The paper describes the characteristics and circuit of ULN2003, and designs the system of motor drive using the microcomputer combined with the ULN2003 to drive the stepper motor.
采用新型薄膜铂温度传感器设计了多点温度检测系统，使用正反馈型线性校正电路使输出电压与温度成线性关系，从而提高了检测系统的测量准确度。
The linearity correction circuit of positive feedback can make the output voltage be linear with the temperature, so the measurement accuracy of the system is improved.
采用新型薄膜铂温度传感器设计了多点温度检测系统，使用正反馈型线性校正电路使输出电压与温度成线性关系，从而提高了检测系统的测量准确度。
The linearity correction circuit of positive feedback can make the output voltage be linear with the temperature, so the measurement accuracy of the system is improved.
应用推荐