Switch-mode power-supply design can be a mysterious thing if you do not know how and where to start, because there is a great variety of topologies and controller types from which to choose. In this blog series I will describe how to pick the most fitting power supply topology for your application and what you need to know to get there. The best starting point is usually a dedicated specification for your application. This specification should at least include information about the input-voltage range, output voltage and maximum load current. However, choosing the best-fitting topology and/or system solution will be easier if you can also answer some of the subsequent questions:
Of course, all of this information is not always necessary. The more detailed your power-supply specification is, however, the easier it is to pick the best-fitting topology and the best performing components.
The most common switch-mode power-supply topologies are:
These topologies are supported by TI’s Power Stage Designer 3.0 tool.
Table 1 summarizes the most common parameters for power supply specifications.
Table 1: Summary of helpful specification parameters
In my next post, I will describe how to pick the most fitting topology based on the parameters of your specification.
Nice!Important issues are listed.
Excellent post! I'm willing to read the next post about the very interesting subject!
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.