一、简单原理磷砷化镓数字管已被广泛地应用在电子仪器、计算机和自动控制等方面作为经济的显示手段,在微处理机中常用它来显示地址和数码,国产BS201,BS202便是这类发光器件。七段数字管由七个发光段和一个小数点组成,这七个发光段分别可由a,b,c,d, First, the simple principle Phosphorus gallium arsenide digital tube has been widely used in electronic instruments, computers and automatic control as an economical means of display, commonly used in microprocessors to display addresses and digital, domestic BS201, BS202 is Such light-emitting devices. The seven-segment digital tube is composed of seven light-emitting segments and one decimal point, and the seven light-emitting segments are respectively composed of a, b, c, d,