EL SEGUNDO, Calif. - May 2005 -- International Rectifier, IR®(NYSE: IRF), a world leader in power management technology, today introduced a new Web-based simulation tool for three-phase, variable-speed, motor drive inverter circuits. The new online tool simplifies recursive calculations and expands the design support for IR's iMOTION™ integrated design platform, a comprehensive approach to electronic Motor Control for appliances and industrial equipment.

The simulation software is designed to calculate power losses and current ratings as a function of motor speed and modulation/switching frequency for all International Rectifier IRAM-series advanced integrated power modules (IPMs), and can be used to evaluate and compare the analog power stages in various operational conditions. In addition, a thermal analysis function verifies safe temperature operation area and heat-sink requirements.

"This Web-based tool simplifies the design process, bringing energy-saving, variable-speed Motor Control to everyday products. Complex calculations and performance comparisons are simplified into an easy-to-use, graphical-user interface environment, saving valuable design time," said David Tam, Vice President of IR's Consumer and Industrial group.

IPM WB Design Tool

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About iMOTION

International Rectifier's iMOTION integrated design platform consists of a development system, mixed-signal analog chip set and power stage, which when co-designed together, simplify Motor Control designs and bring energy-efficient, cost-effective solutions to market faster. More details on the iMOTION platform, as well as links to design assistance, are posted on the iMOTION Web page.