Faced with constant pressure from customers and competitors, PCB designers must make products in time. In such a fast-paced environment, product planning and implementation are extremely important, and implementation issues must be actively addressed. However, many companies usually do not pay attention to, or even ignore many steps in the planning stage.
An important step in the planning stage is the establishment and verification of the design. Electronic and printed circuit board (PCB) computer simulation is an important part of the design verification. IC manufacturers have introduced various tools for simulation. IC manufacturers have developed many tools that can meet the needs of PCB designers to help customers actively achieve their goals. These tools include analog circuits, digital circuits, and circuit board design tools.
Some design tools can be used to study and judge the circuit topology of difficult configurations, such as analog switching power supply or analog filter design, and provide important circuit performance specifications.
For example, the online version of the power supply design tool of Texas Instruments (TI) SwitcherPro, or the download version can be used to build the required power supply circuit.
Power supply design tools allow users to create their own designs with the required specifications and appropriate IC part numbers. These tools can also analyze the minimum and maximum performance of the completed circuit board, as well as the effects and contacts of low-loss components. Upper temperature limit, circuit efficiency and circuit loop stability. Because PCB designers use experimental circuit boards, most power supply design software provides a bill of materials (BOM) and configuration suggestions. Analog filter design software also helps PCB designers to work. You can find versions of such software on the websites of some analog IC manufacturers. For example, TI provides FilterPro analog filter design programs. These tools can calculate complicated filter calculations. The work is handled by the computer.
The filter design software suite can usually design part or all of low pass (low pass), high pass (high pass), band pass (band pass), band stop (band stop/notch) and all pass (all pass) ) Filter, and can define filter specifications and response types. Once these variables are determined, the software can provide a complete circuit, including auxiliary components.
After the design is created manually or through design software, it can be verified and adjusted using the SPICE simulator. The SPICE simulator of Texas Instruments TINA-TITM (1) can assist in the design and evaluation of the performance of multiple sub-circuits in applications. It is necessary to find the difference in the gain of the two filters over the entire frequency.
Analog circuit SPICE macro model library, I/O Buffer Information Specification (IBIS), and Combined Scanning Description Language (BSDL) models can all be used for digital simulation. Most IC manufacturers’ websites provide all these types of models, and there are various models. A calculation tool can be downloaded.
In a nutshell, PCB designers can use many tools to successfully complete design planning and establish procedures. Although the data provided by these tools cannot avoid the experimental circuit board stage, they can provide a feasible and qualified solution, and ultimately achieve the effect of shortening the time to market.