What are the latest software most commonly used by electronic engineers?

pspice. OrCAD, workbench, protel, VHDL,...

PSPICE is a general-purpose circuit developed from SPICE (Simulation Program with Integrated Circuit Emphasis) for microcomputer series Analysis program. It was developed in 1972 by the computer-aided design team of the University of California, Berkeley, using the FORTRAN language. It is mainly used for computer-aided SPICE design of large-scale integrated circuits and for analog circuit simulation. PSPICE 10.5 has achieved major changes in three major aspects: First, on the basis of analyzing basic circuit characteristics such as DC, AC, and transients on analog circuits, it has realized more complex Monte Carlo analysis, worst-case analysis, and optimized design. Second, it can not only simulate analog circuits, but also digital circuits and digital/analog mixed circuits; third, the integration level is greatly improved. After the circuit diagram is drawn, circuit simulation can be performed directly and at any time. Analyze and observe the simulation results. The use of PSPICE software has become very popular. In universities, it is a must-know circuit analysis and design tool for engineering students; in companies, it is an indispensable design tool in the process of product design, experimentation and finalization.

ORCAD Capture (hereinafter referred to as Capture) is a circuit design tool based on the Windows operating environment. Capture software can be used to draw circuit schematics and provide continuous simulation information for PCB and programmable logic design. ORCAD is an EDA software launched by ORCAD in the late 1980s. It is the most widely used EDA software in the world. Millions of electronic engineers use it every day. Compared with other EDA software, its functions are It is also the most powerful. Since the ORCAD software uses a software dog to prevent piracy, it is not popular in China and its popularity is not as good as PROTEL. Only a few electronic designers use it. It entered the country when computers began to become popular. 94 years.

Electronics workbench (EWB) software is one of the best software among various electronic circuit auxiliary analysis and design software at present. It has the advantages of friendly interface, easy operation and strong practicality. , and has the design, analysis and simulation capabilities of analog and digital circuits. Introducing a new method of designing circuits based on EWB software, which changes the traditional design method, and introduces the methods and techniques of EWB in electronic technology through design examples, demonstrating that the software is an effective tool for designing electronic circuits

PROTEL is a complete board-level all-round electronic design system. It includes circuit schematic drawing, mixed-signal simulation of analog circuits and digital circuits, multi-layer printed circuit board design (including automatic wiring of printed circuit boards), Programmable logic device design, chart generation, spreadsheet generation, support for macro operations and other functions, and has a Client/Server (client/server) architecture, and is also compatible with the file formats of some other design software, such as ORCAD, PSPICE, EXCEL, etc. , its automatic routing of multi-layer printed circuit boards can achieve 100% routing rate of high-density PCBs. PROTEL software is relatively easy to buy in China, and there are many books about PROTEL software and usage instructions, which provides a foundation for its popularity. PROTEL is an EDA software launched by PORTEL in the late 1980s. Among CAD software in the electronics industry, it ranks first among many EDA software and is the first choice software for electronic designers. It has been used in China for a long time. It also has the highest penetration rate in China. Electronic majors in some colleges and universities even offer special courses to learn it. Almost all electronic companies use it. Many large companies often write requirements in their qualification columns when recruiting electronic design talents. Will use PROTEL.

The full English version of VHDL is: VHSIC (Very High Speed ??Integrated Circuit) Hardware Description Language. Translated into Chinese, it is Ultra High Speed ??Integrated Circuit Hardware Description Language. Therefore, its application is mainly used in the design of digital circuits. At present, most of its applications in China are used in the design of FPGA/CPLD/EPLD. Of course, in some relatively strong units, it is also used to design ASICs. VHDL is mainly used to describe the structure, behavior, functions and interfaces of digital systems. In addition to containing many statements with hardware characteristics, VHDL's language form, description style, and syntax are very similar to general computer high-level languages. The program structure of VHDL is characterized by dividing an engineering design, or design entity (which can be a component, a circuit module, or a system) into an external (or visible part, and port) and an internal (or invisible part) , involving both the internal functions of the entity and the algorithm completion part. After defining the external interface for a design entity, other designs can directly call this entity once its internal development is completed. This concept of dividing a design entity into internal and external parts is a basic point of VHDL system design.