International Rectifier has made a number of enhancements to its Insulated Gate Bipolar Transistor (IGBT) selection tool that enables design optimisation in a wide range of applications including motor drives, uninterruptable power supplies (UPS), solar inverters, and welding.
The latest IGBT selection tool evaluates application conditions including bus voltage, load current, switching frequency, short-circuit requirements, package and thermal system. New features include customizable thermal constraint setting and Current vs. Frequency output chart that conveniently compare devices over a range of operating conditions.
Located at http://mypower.irf.com/IGBT, the IGBT selection tool returns a shortlist of products that meet or exceed the application parametres entered by the user. The products are ranked by performance with losses and junction temperature for the specified operating condition to help facilitate the selection process.
IGBT selection requires evaluation of many parametres that cannot be simplified into a single metric, as switching losses can be traded for conduction losses. To address this problem, IR’s product selection tool generates a Current vs. Frequency graph that provides a powerful indication of the relative performance of different IGBTs. With this information the designer can select the most cost-effective IGBT for the application.