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随着计算机技术和集成电路技术的发展,采用虚拟技术进行电路的分析和设计已成为可能,这方面的软件也越来越多,EWB(Electronics Workbench)就是其中的一种。它采用图形输入方式,从创建电路、施加信号源到调用各种测试仪器都可直接从屏幕上进行。所创建的电路形式和测试方法都十分贴近实验,所见即所得,形象直观。它提供了如直流工作点分析、交流分析、瞬态分析、灵敏度分析等14种分析方法。可分析各种电子电路。在EWB的测试仪器库中除了有常规仪器像示波器、数字多用表等以外,还有专用于数字电路分析的数字信号发生器、逻辑分析仪和逻辑转换仪。因此用其分析数字电路十分方便,用其作为数字电子技术课程的计算机辅助教学效果也非常好。
With the development of computer technology and integrated circuit technology, the analysis and design of circuits using virtual technology have become possible. Software in this area is also growing. EWB (Electronics Workbench) is one of them. It uses graphical input, from the creation of the circuit, the application of the signal source to call a variety of test equipment can be carried out directly from the screen. The circuit forms and test methods are very close to the experiment, WYSIWYG, visual image. It provides 14 kinds of analysis methods such as DC working point analysis, exchange analysis, transient analysis, sensitivity analysis. Can analyze a variety of electronic circuits. In addition to conventional instruments such as oscilloscopes, DMMs, and more, EWB’s test equipment library includes digital signal generators, logic analyzers and logic converters dedicated to digital circuit analysis. Therefore, the analysis of digital circuits with it is very convenient, with its digital electronic technology courses as a computer-aided teaching effect is very good.