Sinrace Power Supply Technology (Shenzhen) Co., Ltd.

Datasheets include EMC specifications. Open frame products include conducted emissions and conducted immunity specifications with some providing information on radiated emissions and radiated immunity, some may require additional components to meet the stated performance so these should be considered when selecting the product for the application. External power supplies must provide specifications for both conducted and radiated EMC performance as these are considered stand alone products. Typically the products are evaluated using passive loads in an ideal test set-up which is unlikely to be replicated in the end application so choosing a supply with local engineering support and test facilities will be an advantage during the end product development.

In summary, power supply and dc/dc converter data sheets contain a lot of information which needs careful consideration when applied to the end application. The data is generated with the power supply or converter in isolation and in some instances additional components are required to meet the various parameters. Cooling and de-rating information may differ significantly between products though this is not always apparent in short form data and efficiency data is normally given under best case rather than worst case conditions. How well the power supply performs in the end application is the key consideration and a study of the long form data and application notes will often provide the detail required to select the best power solution for your system.