EL SEGUNDO, Calif. May 2003 - International Rectifier, IR® (NYSE: IRF), today introduces an integrated design platform for sensor-less control of permanent magnet motors, the second in IR's family of iMOTION™ application-specific design platforms for Motor Control in high speed spindles and other machinery requiring precision control.

The new integrated design platform comes with all hardware and software plus proven designs for the analog and power stages. The mixed-signal chip set is co-designed with the control algorithms to simplify design, slash overall manufacturing costs and drastically reduce time-to-market.

The IRMCS203 development system features the Accelerator™ configurable control engine technology using a proprietary sensor-less algorithm that requires only DC bus voltage and phase current information to detect initial rotor position.

The IRMCO203 Intellectual Property (IP) library is a licensable object code featuring high starting torque and smooth ramp-up. The IRMCO203 is targeted for low cost FPGA applications, eliminating the need for complicated programming processes. The analog section uses high voltage ICs and the power stage is based on the latest non-punch-through (NPT) IGBT and PlugNDrive™ integrated power module technology.

For encoder-based high performance servo applications the IRMCS201 development system and IRMCO201 object code library are available that deliver a closed-loop torque control bandwidth greater than 5kHz, rivaling analog bandwidth with digital flexibility.

David Tam, Vice President, Consumer and Industrial Sector Business said, "High performance servos as well as low voltage and appliance motors can benefit from the innovative control architectures found in IR's evolving family of application-specific design platforms. Our integrated design platform streamlines design cycles by integrating digital, analog and power technologies."

About iMOTION™

International Rectifier's iMOTION™ integrated design platform comprises a development system and mixed-signal chip set, which when co-designed together simplify Motor Control designs and bring energy-efficient, cost-effective solutions to market faster. Visit the International Rectifier iMOTION Web site,

About the Development System

The IRMCS201 and IRMCS203 iMOTION development systems come with all hardware and software integrated to achieve a design flow that requires no coding to configure the motor control algorithms and proven designs for analog and power stages.

The development systems include 1kW servo amplifier hardware platform with pre-loaded code and ServoDesigner™ software.

IRMCS201	Development System	Using Encoder	US $2,500
IRMCS203	Development System	Sensor-Less	US $2,500

About the Mixed-Signal Chip Set

The digital control stage of the iMOTION mixed signal chip set uses Accelerator configurable control engine system architecture using parallel processing and customizable peripherals. The analog stage uses high voltage ICs (HVICs) for gate drive and current sensing functions, while the power stage is based on the latest non-punch-through (NPT) IGBT and PlugNDrive integrated power module technology. Products are available to buy either as part of the mixed-signal chip set or individually.

Part Number	Function	Stage	Price, US $
IRMCO201	Object code for high performance servo	Digital	Available through licensing agreement
IRMCO203	Object code, sensor-less	Digital	Available through licensing agreement
IR2175	HVIC	Analog	$2.50 each per 10,000 units
IR2136	HVIC	Analog	$3.40 each per 10,000 units
IRGB10B60KD	NPT IGBT	Power	$0.63 per 10,000 units
IRAMS10UP60A	Integrated Power Module	Power	$8.30 per 10,000 units
IRAMX16UP60A	Integrated Power Module	Power	$12.85 per 10,000 units

Please register at http://imotion.irf.com to receive a comprehensive information pack or inquire via e-mail to imotion@irf.com for sales support.

High Resolution JPEGs are available in the Press Room.