Irrespective of the electronic or electromechanical system, adequately satisfying power delivery requirements is critical. Although the power source may be off-board – for example, from a two-phase or three-phase outlet – or on the PCB itself, converting and accurately distributing energy to the load(s) is typically a requirement. The circuits that perform these essential operations are either linear or switched-mode power supplies.
As compared to linear power supplies, switching or switched-mode power supplies (SMPSs) are used in a wider range of applications. Additionally, SMPS design is more challenging due to more converter options, greater design complexity, and higher frequency switching operation.
Perhaps, the most difficult challenge is selecting the best switching devices, which often include a high-performance MOSFET that best meets your functionality and performance requirements. To help engineers efficiently address this issue, leading electronics manufacturer Toshiba Electronic Devices and Storage Corporation provides a comprehensive yet easy-to-use switched-mode power supply design MOSFET selector tool; including AC and DC voltage separated specifications.
SMPS MOSFET Selector Tool Attributes
Toshiba’s MOSFET selector tool offers engineers an easy-to-navigate user interface (UI) to facilitate efficient switched-mode power supply design. Attributes include the following.
denotes Power-Factor-Correction.
As shown in the table above, the selector tool allows for detailed specifications over a wide range of SMPS design options. The ability to input design specifications via a single interface and receive a complete design is a tremendous asset that saves time and improves workflow efficiency. The key to this capability is the extensive Switched Mode Power Supply Library.
Leveraging the SMPS Library and Design Tools
A typical design result from the MOSFET selector tool is illustrated above. Not only does the tool deliver a schematic design for the chosen SMPS type and topology, but also a BOM that includes all necessary components for power supply operation and explicit MOSFET recommendations from Toshiba’s comprehensive library of high-quality semiconductors. An added benefit is an efficiency characteristic for each design that can be used as a defining metric to compare comparable designs from the ever-growing SMPS library.
Using Toshiba’s MOSFET selector tool has inherent advantages.
MOSFET Selector Tool Advantages
- High-quality MOSFET component recommendations
- Comprehensive SMPS design library to select from
- BOM with full listing of necessary components
- Downloadable models for simulation and analysis
- Helps facilitate more efficient SMPS design and development
By maximizing the benefits of the SMPS selector and library, your overall circuit design and development process can be significantly enhanced.
Optimizing Your SMPS Circuit Design
Designing SMPS circuits can be quite challenging. Typically, they are required to be compact and complex designs that may need to incorporate very fast switching, which leads to signal integrity issues. Therefore, it is important to follow good guidelines, as listed below, to ensure your design adheres to your design constraints, but also enables you to create as efficiently as possible.
Guidelines for MOSFET Selector Tool SMPS Design Optimization
- Leverage the detailed BOM for component selection
- Use an effective electronic component sourcing database
- Employ simulation to verify functionality and performance
- Follow good PCB layout design guidelines
- Utilize PCB design verification to facilitate high-yield manufacturing
Following the guidelines will help you magnify the benefits of the MOSFET selector tool for SMPS design to significantly contribute to your PCB design and development optimization.
If you’re looking for CAD models for common components or important information for optimizing design efficiency, like how to best leverage Toshiba’s MOSFET selector tool for switched-mode power supply design, Ultra Librarian helps by compiling all your sourcing and CAD information in one place.
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