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已经发表有多种不同的音频指示电路。这里讨论的电路给出图形显示,而且,在同步时,图形始终定位。如果不同步,则图形将依据十进计数器的计数,向左或向右移动。 此系统的主要优点是成本低,所用的均为易购元件。本系统也可接到音频系统的面板上。因为用LED作为指示元件,故本系统的分辨率低,为了增加分辩率,要用小型LED,而且,LED间的空隙应力求小。 本电路实际上指示的是任一时刻的输出电压。X方向表示时间,Y方向表示电压。集成电路CD4017(十进计数器)用做时间指示器。这
A number of different audio indication circuits have been published. The circuit discussed here gives a graphical display, and, when synchronized, the graph is always positioned. If you do not synchronize, the graph will move left or right depending on the count of the decimal counter. The main advantage of this system is its low cost, all of which are readily available components. The system can also be connected to the audio system panel. Because of the LED as an indicator, so the resolution of the system is low, in order to increase the resolution, to use a small LED, but also, the gap between the LED stress should be small. This circuit actually indicates the output voltage at any time. The X direction indicates time and the Y direction indicates voltage. IC CD4017 (Decimal Counter) is used as a time indicator. This