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D/A转换器将输入的数字量转换为模拟量输出,在工业自动控制系统中有很大的实用意义。在数字电路权电阻D/A转换教学过程中,电路通过单稳态触发器产生脉冲信号进行计数并将脉冲的个数通过权电阻转换成模拟量输出。电路设计简单,方便学生对D/A转换电路的理解和掌握。
D / A converter to convert the digital input into an analog output, in the industrial automation system has great practical significance. In the digital circuit resistance D / A conversion teaching process, the circuit generates a pulse signal through the monostable trigger to count and the number of pulses through the right resistor into an analog output. Circuit design is simple and convenient for students to understand and master D / A conversion circuit.